2013 Fiscal Year Final Research Report
Assssing evolutionary episodes of genetic hybridization in small mammals using the population haplotype structure analysis
| Project/Area Number |
23570101
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Biodiversity/Systematics
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| Research Institution | Hokkaido University |
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Principal Investigator |
SUZUKI Hitoshi 北海道大学, 地球環境科学研究科(研究院), 准教授 (40179239)
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| Project Period (FY) |
2011 – 2013
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| Keywords | 二次的接触 / ハプロタイプ構造解析 / 毛色関連遺伝子 / 系統地理 / 浸透交雑 / 小型哺乳類 / クマネズミ / クロテン |
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| Research Abstract |
In this study, we aimed to develop a new method to better understand spacial and temporal aspects for the secondary contact in which two distinct lineages of different geographic groups are mingled, focusing on recombination signals along a certain chromosome portion, such as 10 kb, 200 kb, 1 Mb, and 5 Mb. In a case of 200 kb segment, for example, we determined nucleotide sequences in eight gene region (~500 bp) being separated at 20-30 kb interval and assessed its haplotype structures. These methods allowed us to detect the secondary contact events of different time scales, such as several hundred years before present and several hundred thousand years ago. Further efforts would be needed to improve the method, aiming at establishment of ways to fully utilize the genetic information related to recombination events in molecular phylogeographic study.
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Research Products
(29 results)
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[Journal Article] A distinct genetic characteristics of Sri Lankan Rattus and Bandicota (Murinae, Rodentia) inferred from mitochondrial and nuclear markers2014
Author(s)
Yasuda SP, Gamage CD, Koizumi N, Nishio S, Isozumi R, Shimizu K, Koma T, Amada T, Suzuki H, Yoshimatsu K, Arikawa
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Journal Title
Genes & Genetic Systems
Volume: (in press)
Peer Reviewed
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[Journal Article] Mc1r変異に基づくクマネズミ外来系統の日本列島における移入と浸透交雑の把握2014
Author(s)
神戸嘉一, 鈴木莊介, 矢部辰男, 中田勝士, 前園泰徳, 阿部愼太郎, 石田健, 谷川力, 橋本琢磨, 武田美加子, 土屋公幸, 吉松組子, 鈴木仁
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Journal Title
哺乳類科学
Volume: 53(2)
Pages: 289-299
DOI
Peer Reviewed
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