气候变化领域集成服务门户(CCPortal): Selection drives convergent gene expression changes during transitions to co-sexuality in haploid sexual systems

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DOI	10.1038/s41559-022-01692-4
	Selection drives convergent gene expression changes during transitions to co-sexuality in haploid sexual systems
	Cossard G.G.; Godfroy O.; Nehr Z.; Cruaud C.; Cock J.M.; Lipinska A.P.; Coelho S.M.
发表日期	2022
ISSN	2397-334X
起始页码	579
结束页码	589
卷号	6 期号:5
英文摘要	Co-sexuality has evolved repeatedly from unisexual (dioicous) ancestors across a wide range of taxa. However, the molecular changes underpinning this important transition remain unknown, particularly in organisms with haploid sexual systems such as bryophytes, red algae and brown algae. Here we explore four independent events of emergence of co-sexuality from unisexual ancestors in brown algal clades to examine the nature, evolution and degree of convergence of gene expression changes that accompany the breakdown of dioicy. The amounts of male versus female phenotypic differences in dioicous species were not correlated with the extent of sex-biased gene expression, in stark contrast to what is observed in animals. Although sex-biased genes exhibited a high turnover rate during brown alga diversification, some of their predicted functions were conserved across species. Transitions to co-sexuality consistently involved adaptive gene expression shifts and rapid sequence evolution, particularly for male-biased genes. Gene expression in co-sexual species was more similar to that in females rather than males of related dioicous species, suggesting that co-sexuality may have arisen from ancestral females. Finally, extensive convergent gene expression changes, driven by selection, were associated with the transition to co-sexuality. Together, our observations provide insights on how co-sexual systems arise from ancestral, haploid UV sexual systems. ? 2022, The Author(s).
语种	英语
scopus关键词	animal; brown alga; female; gene expression; genetics; haploidy; male; plant; Animals; Female; Gene Expression; Haploidy; Male; Phaeophyta; Plants
来源期刊	Nature Ecology & Evolution
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/257078
作者单位	Sorbonne Université, UPMC Univ Paris 06, CNRS, Integrative Biology of Marine Models, Station Biologique de Roscoff, CS, Roscoff, France; Max Plank Institute for Biology Tübingen, Tübingen, Germany; Genoscope, Institut de Biologie Fran?ois Jacob, CEA, Université Paris-Saclay, Evry, France
推荐引用方式 GB/T 7714	Cossard G.G.,Godfroy O.,Nehr Z.,et al. Selection drives convergent gene expression changes during transitions to co-sexuality in haploid sexual systems[J],2022,6(5).
APA	Cossard G.G..,Godfroy O..,Nehr Z..,Cruaud C..,Cock J.M..,...&Coelho S.M..(2022).Selection drives convergent gene expression changes during transitions to co-sexuality in haploid sexual systems.Nature Ecology & Evolution,6(5).
MLA	Cossard G.G.,et al."Selection drives convergent gene expression changes during transitions to co-sexuality in haploid sexual systems".Nature Ecology & Evolution 6.5(2022).