Mutations in an AP2 transcription factor-like gene affect internode length and leaf shape in maize.

<h4>Background</h4>Plant height is an important agronomic trait that affects yield and tolerance to certain abiotic stresses. Understanding the genetic control of plant height is important for elucidating the regulation of maize development and has practical implications for trait improv...

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Autores principales:	Fukun Jiang, Mei Guo, Fang Yang, Keith Duncan, David Jackson, Antoni Rafalski, Shoucai Wang, Bailin Li
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2012
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/8dea81e1651f49109a2782d9cfc4c9e6
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spelling	oai:doaj.org-article:8dea81e1651f49109a2782d9cfc4c9e62021-11-18T07:17:43ZMutations in an AP2 transcription factor-like gene affect internode length and leaf shape in maize.1932-620310.1371/journal.pone.0037040https://doaj.org/article/8dea81e1651f49109a2782d9cfc4c9e62012-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22649507/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Background</h4>Plant height is an important agronomic trait that affects yield and tolerance to certain abiotic stresses. Understanding the genetic control of plant height is important for elucidating the regulation of maize development and has practical implications for trait improvement in plant breeding.<h4>Methodology/principal findings</h4>In this study, two independent, semi-dwarf maize EMS mutants, referred to as dwarf & irregular leaf (dil1), were isolated and confirmed to be allelic. In comparison to wild type plants, the mutant plants have shorter internodes, shorter, wider and wrinkled leaves, as well as smaller leaf angles. Cytological analysis indicated that the leaf epidermal cells and internode parenchyma cells are irregular in shape and are arranged in a more random fashion, and the mutants have disrupted leaf epidermal patterning. In addition, parenchyma cells in the dil1 mutants are significantly smaller than those in wild-type plants. The dil1 mutation was mapped on the long arm of chromosome 6 and a candidate gene, annotated as an AP2 transcription factor-like, was identified through positional cloning. Point mutations near exon-intron junctions were identified in both dil1 alleles, resulting in mis-spliced variants.<h4>Conclusion</h4>An AP2 transcription factor-like gene involved in stalk and leaf development in maize has been identified. Mutations near exon-intron junctions of the AP2 gene give mis-spliced transcript variants, which result in shorter internodes and wrinkled leaves.Fukun JiangMei GuoFang YangKeith DuncanDavid JacksonAntoni RafalskiShoucai WangBailin LiPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 7, Iss 5, p e37040 (2012)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Fukun Jiang Mei Guo Fang Yang Keith Duncan David Jackson Antoni Rafalski Shoucai Wang Bailin Li Mutations in an AP2 transcription factor-like gene affect internode length and leaf shape in maize.
description	<h4>Background</h4>Plant height is an important agronomic trait that affects yield and tolerance to certain abiotic stresses. Understanding the genetic control of plant height is important for elucidating the regulation of maize development and has practical implications for trait improvement in plant breeding.<h4>Methodology/principal findings</h4>In this study, two independent, semi-dwarf maize EMS mutants, referred to as dwarf & irregular leaf (dil1), were isolated and confirmed to be allelic. In comparison to wild type plants, the mutant plants have shorter internodes, shorter, wider and wrinkled leaves, as well as smaller leaf angles. Cytological analysis indicated that the leaf epidermal cells and internode parenchyma cells are irregular in shape and are arranged in a more random fashion, and the mutants have disrupted leaf epidermal patterning. In addition, parenchyma cells in the dil1 mutants are significantly smaller than those in wild-type plants. The dil1 mutation was mapped on the long arm of chromosome 6 and a candidate gene, annotated as an AP2 transcription factor-like, was identified through positional cloning. Point mutations near exon-intron junctions were identified in both dil1 alleles, resulting in mis-spliced variants.<h4>Conclusion</h4>An AP2 transcription factor-like gene involved in stalk and leaf development in maize has been identified. Mutations near exon-intron junctions of the AP2 gene give mis-spliced transcript variants, which result in shorter internodes and wrinkled leaves.
format	article
author	Fukun Jiang Mei Guo Fang Yang Keith Duncan David Jackson Antoni Rafalski Shoucai Wang Bailin Li
author_facet	Fukun Jiang Mei Guo Fang Yang Keith Duncan David Jackson Antoni Rafalski Shoucai Wang Bailin Li
author_sort	Fukun Jiang
title	Mutations in an AP2 transcription factor-like gene affect internode length and leaf shape in maize.
title_short	Mutations in an AP2 transcription factor-like gene affect internode length and leaf shape in maize.
title_full	Mutations in an AP2 transcription factor-like gene affect internode length and leaf shape in maize.
title_fullStr	Mutations in an AP2 transcription factor-like gene affect internode length and leaf shape in maize.
title_full_unstemmed	Mutations in an AP2 transcription factor-like gene affect internode length and leaf shape in maize.
title_sort	mutations in an ap2 transcription factor-like gene affect internode length and leaf shape in maize.
publisher	Public Library of Science (PLoS)
publishDate	2012
url	https://doaj.org/article/8dea81e1651f49109a2782d9cfc4c9e6
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Mutations in an AP2 transcription factor-like gene affect internode length and leaf shape in maize.

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