Admixture of divergent genomes facilitates hybridization across species in the family Brassicaceae

Admixture of divergent genomes facilitates hybridization across species in the family Brassicaceae

© 2022 The Authors. New Phytologist © 2022 New Phytologist Foundation.

Bibliographische Detailangaben
Veröffentlicht in:The New phytologist. - 1979. - 235(2022), 2 vom: 15. Juli, Seite 743-758
1. Verfasser: Shin, Hosub (VerfasserIn)
Weitere Verfasser: Park, Jeong Eun, Park, Hye Rang, Choi, Woo Lee, Yu, Seung Hwa, Koh, Wonjun, Kim, Seungill, Soh, Hye Yeon, Waminal, Nomar Espinosa, Belandres, Hadassah Roa, Lim, Joo Young, Yi, Gibum, Ahn, Jong Hwa, Kim, June-Sik, Kim, Yong-Min, Koo, Namjin, Kim, Kyunghee, Perumal, Sampath, Kang, Taegu, Kim, Junghyo, Jang, Hosung, Kang, Dong Hyun, Kim, Ye Seul, Jeong, Hyeon-Min, Yang, Junwoo, Song, Somin, Park, Suhyoung, Kim, Jin A, Lim, Yong Pyo, Park, Beom-Seok, Hsieh, Tzung-Fu, Yang, Tae-Jin, Choi, Doil, Kim, Hyun Hee, Lee, Soo-Seong, Huh, Jin Hoe
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2022
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Brassicaceae DNA methylation allopolyploidy epigenome genome divergence hybrid xBrassicoraphanus
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520 |a Hybridization and polyploidization are pivotal to plant evolution. Genetic crosses between distantly related species are rare in nature due to reproductive barriers but how such hurdles can be overcome is largely unknown. Here we report the hybrid genome structure of xBrassicoraphanus, a synthetic allotetraploid of Brassica rapa and Raphanus sativus. We performed cytogenetic analysis and de novo genome assembly to examine chromosome behaviors and genome integrity in the hybrid. Transcriptome analysis was conducted to investigate expression of duplicated genes in conjunction with epigenome analysis to address whether genome admixture entails epigenetic reconfiguration. Allotetraploid xBrassicoraphanus retains both parental chromosomes without genome rearrangement. Meiotic synapsis formation and chromosome exchange are avoided between nonhomologous progenitor chromosomes. Reconfiguration of transcription network occurs, and less divergent cis-elements of duplicated genes are associated with convergent expression. Genome-wide DNA methylation asymmetry between progenitors is largely maintained but, notably, B. rapa-originated transposable elements are transcriptionally silenced in xBrassicoraphanus through gain of DNA methylation. Our results demonstrate that hybrid genome stabilization and transcription compatibility necessitate epigenome landscape adjustment and rewiring of cis-trans interactions. Overall, this study suggests that a certain extent of genome divergence facilitates hybridization across species, which may explain the great diversification and expansion of angiosperms during evolution 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a Brassicaceae 
650 4 |a DNA methylation 
650 4 |a allopolyploidy 
650 4 |a epigenome 
650 4 |a genome divergence 
650 4 |a hybrid 
650 4 |a xBrassicoraphanus 
700 1 |a Park, Jeong Eun  |e verfasserin  |4 aut 
700 1 |a Park, Hye Rang  |e verfasserin  |4 aut 
700 1 |a Choi, Woo Lee  |e verfasserin  |4 aut 
700 1 |a Yu, Seung Hwa  |e verfasserin  |4 aut 
700 1 |a Koh, Wonjun  |e verfasserin  |4 aut 
700 1 |a Kim, Seungill  |e verfasserin  |4 aut 
700 1 |a Soh, Hye Yeon  |e verfasserin  |4 aut 
700 1 |a Waminal, Nomar Espinosa  |e verfasserin  |4 aut 
700 1 |a Belandres, Hadassah Roa  |e verfasserin  |4 aut 
700 1 |a Lim, Joo Young  |e verfasserin  |4 aut 
700 1 |a Yi, Gibum  |e verfasserin  |4 aut 
700 1 |a Ahn, Jong Hwa  |e verfasserin  |4 aut 
700 1 |a Kim, June-Sik  |e verfasserin  |4 aut 
700 1 |a Kim, Yong-Min  |e verfasserin  |4 aut 
700 1 |a Koo, Namjin  |e verfasserin  |4 aut 
700 1 |a Kim, Kyunghee  |e verfasserin  |4 aut 
700 1 |a Perumal, Sampath  |e verfasserin  |4 aut 
700 1 |a Kang, Taegu  |e verfasserin  |4 aut 
700 1 |a Kim, Junghyo  |e verfasserin  |4 aut 
700 1 |a Jang, Hosung  |e verfasserin  |4 aut 
700 1 |a Kang, Dong Hyun  |e verfasserin  |4 aut 
700 1 |a Kim, Ye Seul  |e verfasserin  |4 aut 
700 1 |a Jeong, Hyeon-Min  |e verfasserin  |4 aut 
700 1 |a Yang, Junwoo  |e verfasserin  |4 aut 
700 1 |a Song, Somin  |e verfasserin  |4 aut 
700 1 |a Park, Suhyoung  |e verfasserin  |4 aut 
700 1 |a Kim, Jin A  |e verfasserin  |4 aut 
700 1 |a Lim, Yong Pyo  |e verfasserin  |4 aut 
700 1 |a Park, Beom-Seok  |e verfasserin  |4 aut 
700 1 |a Hsieh, Tzung-Fu  |e verfasserin  |4 aut 
700 1 |a Yang, Tae-Jin  |e verfasserin  |4 aut 
700 1 |a Choi, Doil  |e verfasserin  |4 aut 
700 1 |a Kim, Hyun Hee  |e verfasserin  |4 aut 
700 1 |a Lee, Soo-Seong  |e verfasserin  |4 aut 
700 1 |a Huh, Jin Hoe  |e verfasserin  |4 aut 
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