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Kang, Lei; Qian, Lunwen; Zheng, Ming; Chen, Liyang; Chen, Hao; Yang, Liu; You, Liang; Yang, Bin; Yan, Mingli; Gu, Yuanguo; Wang, Tianyi; Schiessl, Sarah-Veronica; An, Hong; Blischak, Paul; Liu, Xianjun; Lu, Hongfeng; Zhang, Dawei; Rao, Yong; Jia, Donghai; Zhou, Dinggang; Xiao, Huagui; Wang, Yonggang; Xiong, Xinghua; Mason, Annaliese S; Chris Pires, J; Snowdon, Rod J; Hua, Wei; Liu, Zhongsong
Nature genetics, 09/2021, Letnik: 53, Številka: 9Journal Article
Despite early domestication around 3000 BC, the evolutionary history of the ancient allotetraploid species Brassica juncea (L.) Czern & Coss remains uncertain. Here, we report a chromosome-scale de novo assembly of a yellow-seeded B. juncea genome by integrating long-read and short-read sequencing, optical mapping and Hi-C technologies. Nuclear and organelle phylogenies of 480 accessions worldwide supported that B. juncea is most likely a single origin in West Asia, 8,000-14,000 years ago, via natural interspecific hybridization. Subsequently, new crop types evolved through spontaneous gene mutations and introgressions along three independent routes of eastward expansion. Selective sweeps, genome-wide trait associations and tissue-specific RNA-sequencing analysis shed light on the domestication history of flowering time and seed weight, and on human selection for morphological diversification in this versatile species. Our data provide a comprehensive insight into the origin and domestication and a foundation for genomics-based breeding of B. juncea.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Vir: Osebne bibliografije
in: SICRIS
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