Sex chromosome evolution in moths and butterflies

Sahara, Ken; Yoshido, Atsuo; Traut, Walther

Chromosome Research, 2012, 20(1), 83-94

Permalink : https://hdl.handle.net/2115/49121

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論文情報

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アクセス権
open access
URI
https://hdl.handle.net/2115/49121
タイトル
Sex chromosome evolution in moths and butterflies
著者
Sahara, Ken ; Yoshido, Atsuo ; Traut, Walther
e-Rad_Researcher
30241368
著者名
Sahara, Ken
著者名
Yoshido, Atsuo
著者名
Traut, Walther
言語
英語
キーワード
BAC-FISH
conserved synteny
holokinetic chromosomes
sex determination
W chromosome
Z chromosome
発行日
2012-01
出版者
Springer Netherlands
収録物名
Chromosome Research
巻(号)
20(1)
ページ
83-94
抄録
Lepidoptera, i.e. moths and butterflies, have a female heterogametic sex chromosome system, with most females having a WZ constitution while males are ZZ. Besides this predominant WZ/ZZ system, Z/ZZ, WZ1Z2/Z1Z1Z2Z2 and W1W2Z/ZZ systems also occur. Sex is determined by an unknown W-linked gene or genes in Bombyx mori, but by dosage-dependent and equally unknown Z-linked genes in all Z/ZZ species. The female-heterogametic sex chromosome system has been conserved for at least 180 milliion years in the phylogenetic branch that combines Lepidoptera and Trichoptera. The W chromosome, which is present in most lepidopteran species, was incorporated into the system much later, about 90-100 MYA. The Z chromosomes display conserved synteny, much like the Z in birds or the X in mammals. The W, on the other hand, is evolving rapidly. It is crammed with repetitive elements which appear to have a high turnover rate, but poor in or even devoid of protein-coding genes. It has frequently undergone fusion with autosomes or sporadically been lost altogether.
資源タイプ
学術雑誌論文
出版タイプ
Accepted Manuscript
権利情報
The original publication is available at www.springerlink.com
PISSN
0967-3849
関連情報
PMID
22187366
関連情報 (isVersionOf)
出版社版DOI
https://doi.org/10.1007/s10577-011-9262-z