Samia cynthia versus Bombyx mori : Comparative gene mapping between a species with a low-number karyotype and the model species of Lepidoptera

Yoshido, Atsuo; Yasukochi, Yuji; Sahara, Ken

Samia cynthia versus Bombyx mori : Comparative gene mapping between a species with a low-number karyotype and the model species of Lepidoptera

Yoshido, Atsuo; Yasukochi, Yuji; Sahara, Ken

Insect Biochemistry and Molecular Biology, 2011, 41(6), 370-377

Permalink : https://hdl.handle.net/2115/45607

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アクセス権	open access
URI	https://hdl.handle.net/2115/45607
タイトル	Samia cynthia versus Bombyx mori : Comparative gene mapping between a species with a low-number karyotype and the model species of Lepidoptera
著者	Yoshido, Atsuo ; Yasukochi, Yuji ; Sahara, Ken
著者名 Yoshido, Atsuo
著者名 Yasukochi, Yuji
著者名 Sahara, Ken
言語	英語
キーワード	Comparative gene mapping
	Fosmid-FISH
	Lepidoptera
	Sex chromosome
	Conserved synteny
発行日	2011-06
出版者	Elsevier
収録物名	Insect Biochemistry and Molecular Biology
巻(号)	41(6)
ページ	370-377
抄録	We performed gene-based comparative FISH mapping between a wild silkmoth, Samia cynthia ssp. with a low number of chromosomes (2n = 25-28) and the model species, Bombyx mori (2n = 56), in order to identify the genomic components that make up the chromosomes in a low-number karyotype. Mapping of 64 fosmid probes containing orthologs of B. mori genes revealed that the homologues of either two or four B. mori chromosomes constitute the S. c. ricini (Vietnam population, 2n = 27♀/28♂, Z0/ZZ) autosomes. Where tested, even the gene order was conserved between S. c. ricini and B. mori. This was also true for the originally autosomal parts of the neo-sex chromosomes in S. c. walkeri (Sapporo population, 2n = 26♀/26♂, neo-Wneo-Z/neo-Zneo-Z) and S. cynthia subsp. indet. (Nagano population, 2n = 25♀/26♂, neo-WZ1Z2/Z1Z1Z2Z2). The results are evidence for an internal stability of lepidopteran chromosomes even when all autosomes had undergone fusion processes to form a low-number karyotype.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
PISSN	0965-1748
関連情報	PMID 21396446
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1016/j.ibmb.2011.02.005