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DOI	10.1073/pnas.2109204118
	Transposition and duplication of MADS-domain transcription factor genes in annual and perennial Arabis species modulates flowering
	Madrid E.; Severing E.; de Ansorena E.; Kiefer C.; Brand L.; Martinez-Gallegos R.; Woetzel S.; Kemi U.; Jiao W.-B.; Schneeberger K.; Coupland G.
发表日期	2021
ISSN	0027-8424
卷号	118 期号:39
英文摘要	The timing of reproduction is an adaptive trait in many organisms. In plants, the timing, duration, and intensity of flowering differ between annual and perennial species. To identify interspecies variation in these traits, we studied introgression lines derived from hybridization of annual and perennial species, Arabis montbretiana and Arabis alpina, respectively. Recombination mapping identified two tandem A. montbretiana genes encoding MADS-domain transcription factors that confer extreme late flowering on A. alpina. These genes are related to the MADS AFFECTING FLOWERING (MAF) cluster of floral repressors of other Brassicaceae species and were named A. montbretiana (Am) MAF-RELATED (MAR) genes. AmMAR1 but not AmMAR2 prevented floral induction at the shoot apex of A. alpina, strongly enhancing the effect of the MAF cluster, and MAR1 is absent from the genomes of all A. alpina accessions analyzed. Exposure of plants to cold (vernalization) represses AmMAR1 transcription and overcomes its inhibition of flowering. Assembly of the tandem arrays of MAR and MAF genes of six A. alpina accessions and three related species using PacBio long-sequence reads demonstrated that the MARs arose within the Arabis genus by interchromosomal transposition of a MAF1-like gene followed by tandem duplication. Time-resolved comparative RNA-sequencing (RNA-seq) suggested that AmMAR1 may be retained in A. montbretiana to enhance the effect of the AmMAF cluster and extend the duration of vernalization required for flowering. Our results demonstrate that MAF genes transposed independently in different Brassicaceae lineages and suggest that they were retained to modulate adaptive flowering responses that differ even among closely related species. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	Arabis alpina; Flowering; Introgression lines; MADS AFFECTING FLOWERING
语种	英语
scopus关键词	MADS domain protein; MADS domain protein; plant protein; Arabis; Article; controlled study; DNA transposition; flowering; gene dosage; gene duplication; gene mapping; gene repression; gene sequence; genetic analysis; genetic recombination; genetic trait; MAR gene; nonhuman; plant gene; RNA sequencing; vernalization; flower; gene expression regulation; genetics; growth, development and aging; metabolism; phenotype; Arabis; Flowers; Gene Duplication; Gene Expression Regulation, Plant; MADS Domain Proteins; Phenotype; Plant Proteins
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/251009
作者单位	Department of Plant Developmental Biology, Max Planck Institute for Plant Breeding Research, Cologne, D-50829, Germany
推荐引用方式 GB/T 7714	Madrid E.,Severing E.,de Ansorena E.,et al. Transposition and duplication of MADS-domain transcription factor genes in annual and perennial Arabis species modulates flowering[J],2021,118(39).
APA	Madrid E..,Severing E..,de Ansorena E..,Kiefer C..,Brand L..,...&Coupland G..(2021).Transposition and duplication of MADS-domain transcription factor genes in annual and perennial Arabis species modulates flowering.Proceedings of the National Academy of Sciences of the United States of America,118(39).
MLA	Madrid E.,et al."Transposition and duplication of MADS-domain transcription factor genes in annual and perennial Arabis species modulates flowering".Proceedings of the National Academy of Sciences of the United States of America 118.39(2021).