title: The Tarenaya hassleriana genome provides insight into reproductive trait and genome evolution of crucifers.
abstract: The Brassicaceae, including Arabidopsis thaliana and Brassica crops, is unmatched among plants in its wealth of genomic and functional molecular data and has long served as a model for understanding gene, genome, and trait evolution. However, genome information from a phylogenetic outgroup that is essential for inferring directionality of evolutionary change has been lacking. We therefore sequenced the genome of the spider flower (Tarenaya hassleriana) from the Brassicaceae sister family, the Cleomaceae. By comparative analysis of the two lineages, we show that genome evolution following ancient polyploidy and gene duplication events affect reproductively important traits. We found an ancient genome triplication in Tarenaya (Th-α) that is independent of the Brassicaceae-specific duplication (At-α) and nested Brassica (Br-α) triplication. To showcase the potential of sister lineage genome analysis, we investigated the state of floral developmental genes and show Brassica retains twice as many floral MADS (for minichromosome maintenance1, AGAMOUS, DEFICIENS and serum response factor) genes as Tarenaya that likely contribute to morphological diversity in Brassica. We also performed synteny analysis of gene families that confer self-incompatibility in Brassicaceae and found that the critical serine receptor kinase receptor gene is derived from a lineage-specific tandem duplication. The T. hassleriana genome will facilitate future research toward elucidating the evolutionary history of Brassicaceae genomes.
authors: Beijing Genomics Institute, 518083 Shenzhen, China.
authors: Shifeng
authors: S
authors: Cheng
authors: Erik
authors: E
authors: van den Bergh
authors: Peng
authors: P
authors: Zeng
authors: Xiao
authors: X
authors: Zhong
authors: Jiajia
authors: J
authors: Xu
authors: Xin
authors: X
authors: Liu
authors: Johannes
authors: J
authors: Hofberger
authors: Suzanne
authors: S
authors: de Bruijn
authors: Amey S
authors: AS
authors: Bhide
authors: Canan
authors: C
authors: Kuelahoglu
authors: Chao
authors: C
authors: Bian
authors: Jing
authors: J
authors: Chen
authors: Guangyi
authors: G
authors: Fan
authors: Kerstin
authors: K
authors: Kaufmann
authors: Jocelyn C
authors: JC
authors: Hall
authors: Annette
authors: A
authors: Becker
authors: Andrea
authors: A
authors: Bräutigam
authors: Andreas P M
authors: AP
authors: Weber
authors: Chengcheng
authors: C
authors: Shi
authors: Zhijun
authors: Z
authors: Zheng
authors: Wujiao
authors: W
authors: Li
authors: Mingju
authors: M
authors: Lv
authors: Yimin
authors: Y
authors: Tao
authors: Junyi
authors: J
authors: Wang
authors: Hongfeng
authors: H
authors: Zou
authors: Zhiwu
authors: Z
authors: Quan
authors: Julian M
authors: JM
authors: Hibberd
authors: Gengyun
authors: G
authors: Zhang
authors: Xin-Guang
authors: XG
authors: Zhu
authors: Xun
authors: X
authors: Xu
authors: M Eric
authors: ME
authors: Schranz
mesh_terms: D019607:Brassicaceae / Q000235:genetics*; D019143:Evolution, Molecular; D035264:Flowers / Q000235:genetics / Q000254:growth & development; D018506:Gene Expression Regulation, Plant; D017343:Genes, Plant / Q000235:genetics; D018745:Genome, Plant / Q000235:genetics*; D026161:MADS Domain Proteins / Q000235:genetics / Q000378:metabolism; D058977:Molecular Sequence Annotation; D010802:Phylogeny; D020161:Physical Chromosome Mapping; D011123:Polyploidy; D019655:Quantitative Trait, Heritable; D012098:Reproduction / Q000235:genetics; D060436:Self-Incompatibility in Flowering Plants / Q000235:genetics; D017422:Sequence Analysis, DNA; D026801:Synteny / Q000235:genetics; D013997:Time Factors
chemical_list: D026161:MADS Domain Proteins
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