Sex? and species?biased gene flow in a spotted eagle hybrid zone |
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Authors: | Niclas Backstr?m and ülo V?li |
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Institution: | (1) Department of Organismic and Evolutionary Biology, Museum of Comparative Zoology, Harvard University, 26 Oxford Street, Cambridge, MA 02138, USA;(2) Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Riia 181, 51014 Tartu, Estonia |
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Abstract: | Background Recent theoretical and empirical work points toward a significant role for sex-chromosome linked genes in the evolution of
traits that induce reproductive isolation and for traits that evolve under influence of sexual selection. Empirical studies
including recently diverged (Pleistocene), short-lived avian species pairs with short generation times have found that introgression
occurs on the autosomes but not on the Z-chromosome. Here we study genetic differentiation and gene flow in the long-lived
greater spotted eagle (Aquila clanga) and lesser spotted eagle (A. pomarina), two species with comparatively long generation times. |
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