- 著者
- Masahiro Yamada Eiji Hosoi Hidetoshi B. Tamate Junco Nagata Shirow Tatsuzawa Hiroyuki Tado Shinobu Ozawa
- 出版者
- THE MAMMAL SOCIETY OF JAPAN
- 雑誌
- Mammal Study (ISSN:13434152)
- 巻号頁・発行日
- vol.31, no.1, pp.23-28, 2006 (Released:2006-07-08)
- 参考文献数
- 17
- 被引用文献数
- 22
Nucleotide sequences of sika deer (Cervus nippon) collected from the eastern part of Shikoku Island were investigated & compared with those from other areas. Nucleotide sequence of the whole D-loop region of the mitochondrial DNA was determined by direct sequencing technique for each sample. The phylogenetic tree constructed by the sequences indicates that sika deer from Shikoku Island are divided into two distinct lineages: the northern Japan group and the southern Japan group. Proportion of the northern Japan lineage was higher in the northeastern part of the sampling area. There was no border between the distribution of the two lineages, rather it seemed that their distribution intermingled. Besides, there were locations where both lineages were found within a small area. These results indicate that two lineages might be hybridized in some areas of eastern Shikoku.
- 著者
- Masahiro Yamada Eiji Hosoi Junco Nagata Hidetoshi B. Tamate Hiroyuki Tado
- 出版者
- 日本哺乳類学会
- 雑誌
- Mammal Study (ISSN:13434152)
- 巻号頁・発行日
- vol.32, no.3, pp.121-127, 2007 (Released:2007-10-10)
- 参考文献数
- 22
- 被引用文献数
- 13 2
Samples of the sika deer (Cervus nippon) were collected from Kyushu and Shikoku Islands of Japan and surrounding areas, and their nucleotide sequences were analyzed. Sequences of the whole control region of the mitochondrial DNA were determined and phylogenetic trees were constructed using the neighbor-joining method and the maximum likelihood method. We also investigated gene genealogies for the sequences using the statistical parsimony network approach. Phylogenetic trees showed that only the Yakushima/Tanegashima populations were genetically distant from other populations. The statistical parsimony network, however, indicated a close relationship of the Miyazaki populations to some of the Shikoku populations. It was suggested that Shikoku Island played an important role in the divergence from the southern Japan lineage of C. nippon.
- 著者
- Daichi Nabata Koichi Kaji Junco Nagata Ryuichi Masuda
- 出版者
- 日本哺乳類学会
- 雑誌
- Mammal Study (ISSN:13434152)
- 巻号頁・発行日
- vol.32, no.1, pp.17-22, 2007 (Released:2007-04-11)
- 参考文献数
- 17
- 被引用文献数
- 3 3
Recent overpopulation of the sika deer (Cervus nippon) in Hokkaido has resulted in expansion of their distribution from eastern to western parts of this island. To assess changes of genetic population structures of the Hokkaido sika deer, mitochondrial DNA control sequences (602 base-pairs) from 283 animals collected from central and western Hokkaido were analyzed. Based on transitional substitutions (A < - > G) at four nucleotide sites, five haplotypes were identified. One haplotype was newly found in the present study, and the other four haplotypes referred to those reported previously. The distribution patterns of haplotypes showed characteristic changes of genetic population structures, compared with the past distribution of haplotypes. In northern Hokkaido, for instance, the population around the Okhotsk Sea-coastal region has clearly expanded to the Japan Sea-coastal region. The population around the Ishikari-lowlands and the Hidaka mountains has increased within these areas, and it is not likely that the increase is directly caused by the immigration from eastern Hokkaido.