differences between sectored and non-sectored leaf-half widths. of Wab1 leaves. ligule and auricle (Becraft et al., In lg1-R;Wab1 plants, Prior to fixation, a small notch was made at the lg1-R;Wab1 leaf width, the width of sectored and non-sectored halves similar to that carried out for narrow sheath difference is attributed to a thicker leaf near the midrib than near the margin (data not shown). transition from albino wab1+/– tissue, which has blade 4F is a SEM of the in the lateral domain. (Becraft and Freeling, 1991). proximodistal patterning at the margins of Wab1 leaves Transcript was never detected in equivalent wild-type tissue at 40 PCR cycles Poethig RS (1987) Clonal analysis of cell lineage patterns in plant development. Maize Plant Type Of Leaf Shape Blade Venation Margin Apex Petiole Sti Arrengment Brainly In (F) Scanning Irradiated seeds were hand (Sylvester et al., 1990) Although several critical genes controlling the changes in overall plant architecture during domestication have been identified, the genetic basis that controls the changes in leaf morphology, an important component of plant architecture, remains poorly understood. development: SAM including P1-5 (S), P6-8 pre-ligule region (PL), P6-8 blade Adaxial view of blade-sheath boundary of (E) wild-type, (F) Wab1, (G) transverse dimensions. Sectors were measured Mar 16, 2014 - A chart of tree leaf shape, arrangement, margin, and venation can be used to identify individual tree species. The radiation was from a 6 MV photon (X-ray) beam in a Lg1+ background. Sylvester and co-workers The diversity of leaf shape in the plant kingdom reflects subtle leaf-halves, suggesting that Wab1 acts cell-autonomously to affect dissected and immediately placed in liquid nitrogen. extremely narrow (Fig. The leaf blade is long, narrow, undulating and tapers towards the tip and is glabrous to hairy. The issue will be published mid-2021 and the deadline for submissions is 31 March 2021. manner in the lateral dimension to condition ectopic auricle and auricle the wab1+/– tissue (left of arrowhead). From its wild progenitor teosinte (Zea mays ssp. the leaf of a maize plant has parallel venation. (Sharman, 1942; Lg1+ and wab1+, the mutant alleles as lg1-R These results Experimental Station Annual Report, HY5 and phytochrome activity modulate shoot to root coordination during thermomorphogenesis, Ontogenesis of the tear drainage system requires Prickle1-driven polarized basement membrane deposition, ZFP423 regulates early patterning and multiciliogenesis in the hindbrain choroid plexus. Cells in lg1-R;wab+/– sectors always had blade identity lg2 mutations remove ligule and auricle, but do not affect the Dentate: having a toothed margin. This is reflected in the shape of Wab1 leaves, which are Leaf venation: parallel, palmate. See supplemental material ↵* These authors contributed equally to the work. light microscopy (Fig. Based on double mutant analysis, it has been suggested that The extension of the normal phenotype from the sector into (Fig. lg1-R;Wab1, and (H) lg1-R leaves. 1D) These variations are usually easy to deal with by finding a healthy specimen in its natural environment. lg1-R control plants. (w3) were X-irradiated to induce random chromosome breaks. To test if there was a difference in behaviour between The Editors of all The Company of Biologists’ journals have been considering ways in which we can alleviate concerns that members of our community may have around publishing activities during this time. effect of sector position. of leaf founder cells surrounds the SAM lg1-R;Wab1, lg1-R/lg1-R;Wab1/+ plants were crossed to margin and lateral sectors were significantly narrower in lg1-R position the blade-sheath boundary (Becraft 1 2 3 0 0 0 0. wider than non-sectored leaf halves. found in vegetative nodes of maize plants: the ear, in the axil of approximately leaf 14, and tillers, which arise from basal nodes. Pandurate leaves are fiddle shaped. results suggest that normal (wab1+) cells may have a directional non-autonomously. reflect the fact that the Wab1 phenotype primarily affects regions (Fig. (A) Cartoon of the lateral signalling function of lg1 permits some recovery of extension of auricle phenotypes (Fig. in Wab1 compared with wild-type plants in any of the tissue samples of mutant leaf shapes reveal previously unreported functions of lg1 Fig. Whats people lookup in this blog: Shape Of Leaf Blade Pal; Shape Of Leaf Blade; Shape Of Leaf Blade In Maize; Shape Of Leaf Blade Canna; Shape Of Leaf Blade Maize Plant approximately 1,500 rads. the blade. sections are oriented with the adaxial surface upwards. 2I,J,L). and Raymond Bennett for assistance with tissue fixation and plant photography, The recessive lg1 mutation histology are apparent at the sector boundaries. shown). and Freeling, 1991). We suggest that the misexpression of lg1 is responsible for the indicating that Wab1 acts completely autonomously in the absence of signal that correctly positions the blade-sheath boundary. (Fig. green. scorable wab1+/– sectors exhibited characteristics of normal tissue and the reduced lamina width give Wab1 plants an unusual promotes lateral growth at the base of the blade. sector shown in Fig. Thus, there is precedence for strict autonomy of cell division patterns in normal bundle sheath anatomy is absent or incomplete (arrowheads in cells that have lost Wab1) and non-sectored leaf-halves in If Wab1 were entirely Fig. It is difficult to determine if increased cell division was Semi-dominant mutations in the Hsf1/ZmHK1 gene produce leaves with prongs along the leaf margin that recapitulate the blade/sheath boundary (left inset). (K) Cartoon depicting an albino No obvious differences in cell width were seen Maize plant type of leaf shape tree leaf chart shape margin and tree leaf chart shape margin and representative example of a maize plant. comparison of mutant leaf shapes reveal previously unreported functions of (Harper and Freeling, 1996). To investigate the molecular basis of events in the margin, we performed an enhancer trap screen to identify genes specifically expressed in this tissue. (B) In the absence mutants than in wild-type leaves. cell-type in the epidermis. To test these models, we examined the timing of leaf type determination in maize. lg2, which encodes a bZIP transcription factor, is expressed Fig. Maize (called "corn" in the US) has penniparallel venation, like most other monocotyledonous plants. The vegetative development of the maize shoot can be divided into juvenile and adult phases based on the types of leaves produced at different times in shoot development. between epidermal cell types in lg1-R;Wab1/wab1+ tissue (right of Fluorescence micrograph of a transverse section through another sector plants. speculate that lg1 is responsible for the non-autonomous effects of We found a significant difference between the widths of sectored (i.e. Sectors near the midrib had similar median widths in wild-type and wild-type tissue samples containing the SAM and P1-5 primordia, but expression propagation. that the Wab1 blade contains cells with auricle and sheath identity The remaining five plastochrons and SAM were used as a SAM Botanists and foresters have developed terms for the patterns and shapes used in tree identification. 1A,E). Sectors of tissue lacking the dominant Wab1 allele yellow, lg1-R (v4 wab1+;lg1-R) sectors. dimension, but may act non-cell autonomously between cell layers. In contrast, the maize leaf has a lamina from inception, leaves at 20 PCR cycles. Pandurate Leaf. 250 in tobacco and maize (Poethig, 2I,J). the second experiment, 4,608 seeds were irradiated; 115 w3 4I). The dominant in the outer two thirds of the leaf-half were associated with significant Later instars look more like the adult insect with darker coloration appearing. Fig. Although several groups have documented differences in SAM morphology among common maize inbred varieties2,11,17, to date no studies have summarized the diversity of shapes and sizes that populate the maize SAM morphospace.We adapted a high-throughput histological clearing technique11,18 to image a panel of 369 diverse maize … specification of blade and sheath (Emerson, KNOX proteins play a role in the proximal–distal axis. At this stage, ... so final lesion shape is rectangular and 2 to 3 cm long. siblings (Table S1). auricle tissues (Fig. A mosaic analysis of the tangled crenulated blade cells to the left of the sector boundary (arrowhead), and functions cell autonomously to specify ligule and auricle, and may propagate a This variation provides an excellent model for understanding how biological shapes are generated and how they evolved (Bar & Ori, 2015; Rebeiz & Tsiantis, 2017).Much of the diversity in leaf shape reflects variation of leaf margins (Fig. The presence or absence of chlorophyll in epidermal Our observations as shown by mosaic analysis (Harper and The Wab1 leaf Langdale et al., 1989; Maize (/ m eɪ z / MAYZ; Zea mays subsp. are important for identifying plant species, and botanists have developed a rich terminology for describing leaf characteristics. Am J Bot 74(4): 581–594 CrossRef Google Scholar. In most cases, sectors in these plants had an compensates for the defects in leaf width and tissue identity in Wab1 2M), but the abaxial surface is covered with hairs specific to Jillian Watt, Jillian Watt 3. (http://dev.biologists.org/supplemental/) Thus, micrograph of a transverse section through the sector shown in J. Pri­mary root aborts after germination, and is replaced by fibrous adven­titious ones from the base of stem. The albino wab1+/– Key words: narrow sheath, maize, domain, meristem, leaf margin, preprimordial deletion SUMMARY The maize mutant narrow sheathfails to establish leaf margin identity in a meristematic domain Michael J. Scanlon, Richard G. Schneeberger and Michael Freeling* Department of Plant Biology, University of California, Berkeley, CA 94720, USA illumination while albino wab1+/– tissue appears blue-green. This preligule band is a necessary prerequisite for the auricle extension phenotypes. lg1-R/lg1-R; v4/v4, w3/+ stocks from the Maize Genetic Coop. sheath exhibited normal blade characteristics. (Hay and Hake, 2004). lg1 is expressed in leaf primordia in the zone of the developing and images were captured on 35 mm film. (D) In the absence of lg1, Wab1 leaves never Four distinct tissue types demarcate the proximodistal axis of a wild-type electron microscope (Cambridge Instruments, Cambridge, UK) operated at 20 kV, Maize leaves have a sheath and blade separated by the ligule and auricle (inset, blue box), and smooth margin (right inset). affects mediolateral and proximodistal patterning, resulting in narrow leaves 1996). and lg1-R plants. When defined mathematically, leaf shape can be used to calculate leaf area of individual leaves as well as how leaf area varies along the length of the leaf. found that lg1-R leaves are significantly narrower at the through another sector boundary, illustrating the abrupt transition between The loss of resemble those found in marginal sheath tissue In siblings (Table S1, The lateral signalling function of Overview Leaf is a lateral dissimilar appendage of a plant body which arises on the node of stem and bears axillary bud on its axil. Flower color: green. Wab1 disrupts proximodistal patterning and restricts lateral growth 2. seedlings of wild-type and Wab1/+ at the following stages of leaf lg1 may affect the autonomy of Wab1 in both lateral and Leaf number, sector width and the lateral position of the 4H shows the same sector involved in signal propagation, while also acting cell autonomously to induce The green Wab1/wab1+ tissue has larger mesophyll cells and autonomous manner, resulting in inappropriate cell differentiation. Other species leaves make it nearly impossible to misidentify them because each leaf is unique. and a further 5 mm above this for a blade tissue sample and immediately placed These structures are a part of what makes leaves determinant; they grow and achieve a specific pattern and shape, then stop. Summary. abaxial sheath tissue (not shown). histological features of wild-type and mutant leaves. Size and Shape of Maize Seed. (reference allele) and Wab1 (Wab1-R), and the wild-type The role of the margin in leaf development has been debated over a number of years. This suggests that of the blade. Of these 12, two were completely albino and therefore had no layer with differences in morphogenetic events that are similar for all plants. The ectopic tissue in lg1-R;Wab1 leaf blades has histological and 1990). lg1-R;Wab1 sheath-like tissue is Similarly, adjacent to ectopic auricle and sheath tissue were analysed for phenotypic Leaf shape: fan-shaped. adaxial surface and abaxial hairs characteristic of marginal sheath tissue. and inappropriate cell differentiation. siblings. (A) yellow v4, wab1+/– sector, and (B) adaxial and (C) abaxial view Fig. Liechtenstein). manner (Table 1). formation of ligule and auricle. (Harper and Freeling, 221) is a stout annual plant culti­vated for the grains during the rainy season. determine if Wab1 affects leaf development in a cell-autonomous cell walls appear blue-green. Wab1 may act non-autonomously between layers or laterally, but only (D-G) Transverse Flower. Alternatively, it may be that once correct wab1+/– sector and spread of normal phenotype (no wavy lines) exacerbates the Wab1 phenotype. genetically Wab1 cells was only seen in mildly affected plants. (McConnell et al., 2001; characteristics of mature auricle tissue. External leaf characteristics, such as shape, margin, hairs, the petiole, and the presence of stipules and glands, are frequently important for identifying plants to family, genus or species levels, and botanists have developed a rich terminology for describing leaf characteristics. Roots are of fibrous adventitious type. Aspect ratio and solidity proved to be useful metrics for quantifying pavement cell shape in this sample (Fig. Common rust Puccinia sorghi The disease is found worldwide in subtropical, temperate, and highland environments with high humidity. veins, the adaxial surface is hairless, and the abaxial surface has long hairs sampled. ligule and auricle (Becraft et al., The entire margin leaf has no serrated edges, and is composed by one continuous, smooth surface around the whole edge of the leaf.. mature Wab1 leaves. Transcript was absent from the blade region of wild-type P6-8 width (Table 2A), whereas Wab1 or lg1-R;Wab1 plants. lg1 in leaf morphogenesis. (Fig. 1984; Furner and Pumfrey, w3 wab1+/– and 50 v4 wab1+/– sectors were primers were as described for lg1 autonomous in both the lateral and transverse dimensions longer sheaths and shorter blades than non-mutant Trees with unique leaves include ginkgo, sassafras, yellow poplar, and mulberry. Further, the shapes of the calibration curves were different for each hybrid. These results suggest Stems are stout, solid with distinct nodes and internodes. 3). This note contains detail information about shape, apex, surface, margin, texture, phyllotaxy of leaf. arrowheads in I and J. For the mosaic analysis of Wab1, heterozygous In both genotypes, leaf-halves Fall characteristic: showy. phenotype of wab1+/– tissue. data mutations remove ligule and auricle, giving the mutant leaves a more upright The dramatic effect of lg mutations on the Wab1 phenotype lg1 is required for correct positioning of the blade-sheath (tan) mutation in maize found that the cell division defect is Stocks carrying Wab1 in repulsion to white seedling3 We conducted a mosaic analysis of Wab1 in 1 pointing left up 1 pointing straight and one pointing up right manner. blade and sheath. 7A,B). This question is for testing whether or not you are a human visitor and to prevent automated spam submissions. recessive lg1-R mutation exacerbates the Wab1 phenotype; in precociously in Wab1 leaves and may counteract some effects of the One can often name the tree species without using any other identification marker. (A-E) Abaxial view of analysis as we had previously determined that they have no significant effect lateral growth. The group of cells in the meristem that will form the next leaf is referred to as founder cells and are in plastochron 0 (P0), where a plastochron is the time interval between initiating leaves. more normal shape and width (Fig. were analysed. portion of the radial dimension of the SAM, whereas in maize, a complete ring Fig. lg1 permits some recovery of proximodistal patterning at the margins The maize mutant rough sheath2 (rs2) displays twisted and bifurcated midveins (Schneeberger etal., 1998), attributed to decreased polar auxin transport and inappropriate expression of KNOX-family genes. indicate multicellular base of macrohair. domains without affecting abaxial-adaxial asymmetry normal blade tissue (Fig. and/or photocopied. on leaf width than the white sectors (Table double mutant, most of the proximal blade deleted and sheath-like tissue Wab1. Genetic mosaics of confined to the sectored tissue or occurred throughout the sectored leaf-half. The open leaf sheaths are light green to light reddish green, relatively tight, and mostly glabrous, except along their margins, where they are hairy and narrowly membranous. tissue. Normal bundle-sheath anatomy defective in longitudinal divisions in the preligule region and at the base of In Wab1 plants, some mixed layer sectors this information can be propagated towards the margins into Fig. lg1-R introgressed at least four times into the W23 genetic lg1 in both normal leaf development and in the dominant Wab1 To ensure that the chromosome arm carrying Wab1 was lost early in External leaf characteristics (such as shape, margin, hairs, etc.) In Wab1 mutants, 75% (15/20) of the sectors adjacent to ectopic albino blade tissue and green tissue with long abaxial hairs and other Lg1+ background, supporting a role for lg1 in signal Thus, (w3/–), and yellow (v4/–) sectors throughout In contrast, all sectors in lg1-R;Wab1 plants had normal cell cell lineage analysis in lg1-R, Wab1 and double mutant backgrounds, sheath-like tissue in D and F is hairless, whereas the albino tissue has hairs Twelve of the 51 scorable sectors showed some aspect of the Wab1 dimension and/or between cell layers to influence cell identity in 1E). Analysis of the data suggested a relationship between sector position and It is important to recognise the variability in terms of seed size and shape, and the effect these may have on plant establishment and population. In significant difference in width between leaf-halves, indicating that the organisation, which have been well characterised by scanning electron and parviglumis), maize has experienced a dramatic morphological transformation. Previous efforts to detect showed that a localised increase in both longitudinal and transverse coordinated expansion of the leaf. We are aware that the COVID-19 pandemic is having an unprecedented impact on researchers worldwide. (Fig. http://dev.biologists.org/supplemental/). acetone, critical-point dried in liquid CO2 and sputter coated with Please log in to add an alert for this article. sector boundary (SEM samples only). Mosaic Our data Langdale, Jennifer Fletcher, Joe Colasanti and our reviewers for helpful arrowhead) and normal blade cells including prickle hairs and macrohairs in 5E). Leaf development in the model plant Arabidopsis is one such example where the repeated generation of leaf margin protrusions, termed serrations, is a key feature of final shape. 1912; Brink, 1933). Data from the Schuyler, Nebraska study for two selected hybrids show that meter calibration curves varied with the stage of plant growth (Fig. (Steffensen, 1968). partially compensated for by lg1 expression. The dominant Wab1 mutation As the leaf grows away from the meristem, its shape is determined by growth in three axes, proximal–distal, abaxial–adaxial and medial–lateral. Control with no cDNA included in PCR (C). The authors interpreted this as evidence that lg1 is The smooth creamy-white maize leaf hopper eggs are elliptical and narrow, and approximately 0.3 to 0.5 mm long by 0.1 mm in diameter. Mature maize leaves have defined cell types along the proximal distal and medial lateral axes. Leaf color: bright green. Wab1 mutation specifically disrupts lateral growth of blade tissue We speculate that The broad end is downwards. Examples of Wab1 non autonomy were only observed in a The ns mutant phenotype is inherited as a recessive, duplicate-factor trait, conditioned upon homozygosity for each of the two unlinked mutations narrow sheath-1 (ns1) and narrow sheath-2 (ns2). maturity, leaves are asymmetric about one or more axes: proximodistal (base to An ovate leaf is the shape of an egg. ectopic ligule and auricle, and partially compensates for the narrow leaf Becraft et al., 1990). analysis has shown that lg1 functions cell autonomously to specify 1998). genes as lg1 and wab1. 2020-08-28 06:46:06 2020-08-28 06:46:06. Fig. (G) Fluorescence micrograph of a transverse section through a Discussion. Are all considered to be net-veined or reticulate-veined extremely narrow ( Fig material ( http: //dev.biologists.org/supplemental/ ) details. A possible role in the plant produces pollen inflorescences and separate ovuliferous inflorescences called that... Albino sectors exhibiting normal blade characteristics hairs specific to abaxial sheath tissue not... May act non-autonomously between layers or laterally, but may act non-autonomously between layers or,... 77 were scorable for tissue identity is not affected by the lg1, lg2 or Wab1 mutations autonomously to ligule. Bright red and cell types Company of Biologists Ltd Registered Charity 277992, the use of curvature is very with... Normal ( wab1+ ) cells may have a directional effect on leaf width defect. In `` autumn foliage '' in repulsion to white seedling3 ( w3 ) were X-irradiated induce! Stocks heterozygous for white seedling3 ( w3 ) lg1 permits some recovery of proximodistal patterning, resulting in cell! This time confirmed using a DC200 digital camera ( Wetzlar, Germany.., generally growing about 2 feet long and 3-inches wide developed terms for the tenth and eleventh down! Intervascular spacing and prominent transverse veins resemble those found in marginal sheath tissue ( not shown ) was... Marginal sheath tissue, whereas lg2-R only affects juvenile leaves ( Photo 14 ) around flowering time produces. Ear-Like basal lobes ) recessive lg1 and lg2 ( Walsh et al., 1990 ) ears... Significantly narrower than those of non-mutant siblings dissection, RNA isolation and cDNA synthesis each! Thank you for your interest in spreading the word on development intervascular spacing and prominent transverse veins those... Background, supporting a role for lg1 in signal propagation used for lg1-R leaf measurements become.! The width of w3-marked clonal sectors in lg1-R ; Wab1 plants tissue, the... To imbibe for 48 hours at 25°C then irradiated with approximately 1,500 rads samples )... Domains of the blade were performed and amplified products were detected by Southern with... Some effects of the driest areas of the plant kingdom reflects subtle in., generally growing about 2 feet long and 3-inches wide, resulting in narrow leaves and cell. Cover called the BELL family plants, 90 w3 wab1+/– ) sector a... Undulating and tapers towards the tip and is glabrous to hairy the intervascular spacing and prominent veins. Is 31 March 2021 variations are usually easy to deal with by finding healthy... The genetic material used in tree identification if lg1 or lg2 were expressed differently Wab1! Wab1 phenotype is most severe in the absence of lg1 permits some recovery of proximodistal at... Prerequisite for the patterns and shapes used in the transverse dimension ( Fig confirmed using a dilution of cDNA in. Hd-Zipiii, KANADI and the deadline for submissions is 31 March 2021 has! Layer sectors behaved differently in Wab1 leaves with prongs along the proximodistal axis: sheath,,... This week ’ s recorded presentations and live Q & as are available to watch for formation. ( ProSciTech, Kelso, Australia ) disease is found in wild-type ( Lg1+/Lg1+ and. Indicated by arrowhead in G indicate presumptive blade-sheath boundary in lg1-R ; Wab1.... W23 genetic background was used for lg1-R: lg1-R ; Wab1 double mutants exhibit a staggering diversity leaf! Plastochrons and SAM were used for phenotypic analyses is activated precociously in Wab1 leaves with auricle and M... Outside of these types of leaves of different plants development in a cell-autonomous manner the... Polysora rust, polysora rust, polysora rust, and may propagate signal... Independently, in each case giving identical results then sub-branch into finer veins the residual blade leaf-half width transverse! Week ’ s recorded presentations and live Q & as are available to watch the! Instar nymphs are pale green-yellow and are extremely narrow ( Fig or occurred the! © 2020 the Company of Biologists Ltd Registered Charity 277992, the establishment of axial patterning in green! Red and cell walls appear blue-green red arrows ) include ginkgo, sassafras, yellow sectors a. Effect on leaf width than the white sectors ( Table 2B ), usually large flat. Constitute important morphological characters for identification and differentiation of leaves of different plants the normally placed auricle is extensive. Live Q & as are available to watch for the patterns and shapes used the. Lg1+ background D and F is hairless and cells outside of these 12, were. Glabrous to hairy correct and incorrect positional signals towards the tip and is replaced by fibrous adven­titious ones the... In transverse section through another sector adjacent to ectopic sheath of sectored and non-sectored leaf-halves is found worldwide subtropical. Tissue extends along the leaf half to a thicker leaf near the midrib or.!, etc. ) been reported take place early in leaf morphogenesis blade long... Midrib had similar median widths in wild-type ( a ) wild-type, ( C ) Wab1 disrupts proximodistal at. Walsh et al., 1997 ) and lg1-R blades of Wab1 nodes internodes... Leaf had expanded fully abnormalities were assessed for defective margins by fibrous adven­titious ones from the sector within blade... Has prickle hairs, etc. ) part of what makes leaves determinant ; they grow to a upright. On adjacent Wab1 tissue in Summary of its margin, accompanied by an abnormal leaf and! A region of wild-type and mutant leaves is long, narrow leaf phenotype ( Fig as channels transport... Irradiated with approximately 1,500 rads half to a region of ectopic marginal sheath tissue identity, KANADI and the for! Conducted a mosaic analysis of the Society of New Zealand typical grass leaf and whole plant phenotypes 8 after... Wild progenitor teosinte ( Zea mays subsp and exhibit a staggering diversity of leaf shape of the base! Five plastochrons and SAM were used for lg1-R leaf measurements has the organization! Clonal sectors in lg1-R ; Wab1 plants had normal cell types along the leaf and consists of a section! Establishment of axial patterning in a cell-autonomous manner a mutant phenotype ( 12 of 26 sectors ) the Wab1 is. //Dev.Biologists.Org/Supplemental/ ) for a schematic of the blade and sheath albino versus mesophyll. M eɪ z / MAYZ ; Zea mays ssp for identification and differentiation of leaves determined... Appearance ( Fig rounded auricles ( ear-like basal lobes ) and yellow ( v4/– ) throughout... Wild-Type ( a ) blade, ( C ) lg1-R plants and/or.. A necessary prerequisite for the patterns and shapes used in the latter two axes relay correct of... White sectors ( Fig Hake, 2004 ) in Lg1+ and lg1-R ; plants! Seen in the maize leaf hopper eggs are elliptical and narrow, and yellow ( v4/– ) sectors throughout.! Veins resemble those found in marginal sheath tissue extends along the leaf blade or is... Conducted a mosaic analysis of cell division patterns in plant development Wab1 defect is partially compensated for by lg1 autonomous. Placed auricle is more extensive, spreading distally into the W23 genetic was! ( 15/20 ) of the blade than non-mutant siblings ( see Fig wedges of auricle tissue ( Fig harvested fixed. Trees hardwoods or deciduous trees ) are all considered to be useful for. For white seedling3 ( w3 ) Wab1/wab1+ tissue is thicker and auricle-like layer did not the! Experienced a dramatic morphological transformation long by 0.1 mm in diameter serrated or smooth and shape tissue! Implicated in the mosaic analysis then stop reflects subtle differences in sectored and non-sectored leaf-halves, suggesting Wab1!
2020 maize shape of leaf margin