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Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Agriculture / Faculty of Agriculture >
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Difference in evolutionary patterns of strongly or weakly selected characters among ant populations
This item is licensed under:Creative Commons Attribution 4.0 International
| Title: | Difference in evolutionary patterns of strongly or weakly selected characters among ant populations |
| Authors: | Imai, Shuichiro Browse this author | | Kobayashi, Kazuya Browse this author | | Ohkubo, Yusaku Browse this author | | Yagi, Norihiro Browse this author | | Hasegawa, Eisuke Browse this author →KAKEN DB |
| Issue Date: | 20-Dec-2016 |
| Publisher: | Nature Publishing Group |
| Journal Title: | Scientific reports |
| Volume: | 6 |
| Start Page: | 39451 |
| Publisher DOI: | 10.1038/srep39451 |
| Abstract: | Despite being a central issue in evolutionary biology, few studies have examined the stasis of characters in populations with no gene flow. A possible mechanism of such stasis is stabilizing selection with similar peaks in each population. This study examined the evolutionary patterns of morphological characters with and without strong selection in ant populations. We show that compared to a character that seems to be less important, characters that are more important were less variable within and among populations. Microsatellite analyses showed significant genetic differences between populations, implying limited gene flow between them. The observed levels of genetic differentiation cannot be attributed to recent population separations. Thus, the observed differences in morphological variance seem to reflect the degree of selection on each character. The less important character changed proportionately with time, but such a pattern was not observed in more important characters. These results suggest that stabilizing selection maintains morphological stasis between populations of the same species with minimal gene flow independent of divergence times. |
| Rights: | http://creativecommons.org/licenses/by/4.0/ |
| Type: | article |
| URI: | http://hdl.handle.net/2115/64493 |
| 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: 長谷川 英祐
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