Migratory divides coincide with reproductive barriers across replicated avian hybrid zones above the Tibetan Plateau.,Ecology Letters

当前位置： X-MOL 学术 › Ecol. Lett. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Migratory divides coincide with reproductive barriers across replicated avian hybrid zones above the Tibetan Plateau.
Ecology Letters ( IF 7.6 ) Pub Date : 2019-11-19 , DOI: 10.1111/ele.13420
Elizabeth S C Scordato _{1,

2} , Chris C R Smith ₁ , Georgy A Semenov _{1,

3} , Yu Liu _{4,

5} , Matthew R Wilkins _{1,

6} , Wei Liang ₇ , Alexander Rubtsov ₈ , Gomboobaatar Sundev _{9,

10} , Kazuo Koyama ₁₁ , Sheela P Turbek ₁ , Michael B Wunder ₁₂ , Craig A Stricker ₁₃ , Rebecca J Safran ₁

Affiliation

Department of Ecology and Evolutionary Biology, The University of Colorado, Boulder, CO, USA.
Department of Biological Sciences, California State Polytechnic University, Pomona, CA, USA.
Institute of Ecology and Systematics of Animals, Novosibirsk, Russia.
Queen Mary University of London, London, England.
Beijing Normal University, Beijing, China.
Vanderbilt University, Center for Science Outreach, Nashville, TN, 37212, USA.
Ministry of Education Key Laboratory for Ecology of Tropical Islands, College of Life Sciences, Hainan Normal University, Haikou, 571158, China.
State Darwin Museum, Moscow, 117292, Russia.
National University of Mongolia, P. O. Box 537, Ulaanbaatar, 210646, Mongolia.
Mongolian Ornithological Society, P. O. Box 537, Ulaanbaatar, 210646, Mongolia.
Japan Bird Research Association, Tokyo, Japan, 183-0034.
Department of Integrative Biology, University of Colorado Denver, Denver, CO, USA.
U.S. Geological Survey, Denver Federal Center, Denver, CO, 80225, USA.

Migratory divides are proposed to be catalysts for speciation across a diversity of taxa. However, it is difficult to test the relative contributions of migratory behaviour vs. other divergent traits to reproductive isolation. Comparing hybrid zones with and without migratory divides offers a rare opportunity to directly examine the contribution of divergent migratory behaviour to reproductive barriers. We show that across replicate sampling transects of two pairs of barn swallow (Hirundo rustica) subspecies, strong reproductive isolation coincided with a migratory divide spanning 20 degrees of latitude. A third subspecies pair exhibited no evidence for a migratory divide and hybridised extensively. Within migratory divides, overwintering habitats were associated with assortative mating, implicating a central contribution of divergent migratory behaviour to reproductive barriers. The remarkable geographic coincidence between migratory divides and genetic breaks supports a long-standing hypothesis that the Tibetan Plateau is a substantial barrier contributing to the diversity of Siberian avifauna.

中文翻译：

迁徙鸿沟与跨越青藏高原上复制的鸟类杂交区的生殖障碍相吻合。

有人提出，迁徙鸿沟是跨多种类群物种形成的催化剂。但是，很难检验迁徙行为与其他不同性状对生殖隔离的相对贡献。比较有无迁徙隔离带的杂种区，提供了难得的机会，可以直接检查不同的迁徙行为对生殖障碍的贡献。我们显示，在跨越两对谷仓燕子（Hirundo Rustica）亚种的重复采样样带中，强烈的生殖隔离与跨越20度纬度的迁徙鸿沟相吻合。第三对亚种没有表现出迁徙分化的迹象，并广泛杂交。在迁徙的鸿沟之内，越冬的栖息地与各种交配有关，暗示不同迁徙行为对生殖障碍的重要贡献。迁徙鸿沟与遗传断裂之间显着的地理重合，支持了一个长期存在的假设，即青藏高原是造成西伯利亚航空动物多样性的重要障碍。

更新日期：2019-11-20

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11