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Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Agriculture / Faculty of Agriculture >
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Samia cynthia versus Bombyx mori : Comparative gene mapping between a species with a low-number karyotype and the model species of Lepidoptera
| Title: | Samia cynthia versus Bombyx mori : Comparative gene mapping between a species with a low-number karyotype and the model species of Lepidoptera |
| Authors: | Yoshido, Atsuo Browse this author | | Yasukochi, Yuji Browse this author | | Sahara, Ken Browse this author |
| Keywords: | Comparative gene mapping | | Fosmid-FISH | | Lepidoptera | | Sex chromosome | | Conserved synteny |
| Issue Date: | Jun-2011 |
| Publisher: | Elsevier |
| Journal Title: | Insect Biochemistry and Molecular Biology |
| Volume: | 41 |
| Issue: | 6 |
| Start Page: | 370 |
| End Page: | 377 |
| Publisher DOI: | 10.1016/j.ibmb.2011.02.005 |
| PMID: | 21396446 |
| Abstract: | 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. |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/45607 |
| Appears in Collections: | 農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 佐原 健
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