UV Chromosomes and Haploid Sexual Systems.

UV Chromosomes and Haploid Sexual Systems.
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DOI:
10.1016/j.tplants.2018.06.005
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发表时间:
2018-09
影响因子:
20.5
通讯作者:
Umen JG
Umen JG
中科院分区:
生物学1区
文献类型:
--
作者:
Coelho SM;Gueno J;Lipinska AP;Cock JM;Umen JG

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性别决定的进化继续给生物学带来重大问题。性别决定机制控制着所有生物的生殖细胞分化和性特征的发育,从藻类到动物和植物。虽然定义性别的基本过程(减数分裂和重组)是保守的,但性别决定机制是高度不稳定的。特别是,一系列新发现突出了以前未被充分研究的单倍体紫外线性别决定和相关交配系统的几个迷人特征,这些特征在不同的光合类群中发现,包括绿藻、苔藓植物和褐藻。分析整合这些系统的信息,并将它们与经典的XY和ZW系统进行对比,为真核生物性别决定染色体的普遍性和多样性提供了令人兴奋的见解。
The evolution of sex determination continues to pose major questions in biology. Sex determination mechanisms control reproductive cell differentiation and development of sexual characteristics in all organisms, from algae to animals and plants. While the underlying processes defining sex (meiosis and recombination) are conserved, sex determination mechanisms are highly labile. In particular, a flow of new discoveries has highlighted several fascinating features of the previously understudied haploid UV sex determination and related mating systems found in diverse photosynthetic taxa including green algae, bryophytes and brown algae. Analyses integrating information from these systems and contrasting them with classical XY and ZW systems are providing exciting insights into both the universality and the diversity of sex-determining chromosomes across eukaryotes.
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