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Discovery and population genomics of structural variation in a songbird genus
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- Weissensteiner, Matthias H. (author)
- Uppsala Univ, Dept Evolutionary Biol & Sci Life Lab, S-75236 Uppsala, Sweden.;Ludwig Maximilians Univ Munchen, Div Evolutionary Biol, Fac Biol, Grosshaderner Str 2, D-82152 Planegg Martinsried, Germany.;Penn State Univ, Dept Biol, 310 Wartik Lab, University Pk, PA 16802 USA.
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- Bunikis, Ignas (author)
- Uppsala universitet,Institutionen för immunologi, genetik och patologi
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- Catalan, Ana (author)
- Ludwig Maximilians Univ Munchen, Div Evolutionary Biol, Fac Biol, Grosshaderner Str 2, D-82152 Planegg Martinsried, Germany.
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- Uppsala Univ, Dept Evolutionary Biol & Sci Life Lab, S-75236 Uppsala, Sweden;Ludwig Maximilians Univ Munchen, Div Evolutionary Biol, Fac Biol, Grosshaderner Str 2, D-82152 Planegg Martinsried, Germany.;Penn State Univ, Dept Biol, 310 Wartik Lab, University Pk, PA 16802 USA. Institutionen för immunologi, genetik och patologi (creator_code:org_t)
- 2020-07-07
- 2020
- English.
- In: Nature Communications. - : NATURE PUBLISHING GROUP. - 2041-1723. ; 11:1
- Journal article (peer-reviewed)
Abstract
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- Structural variation (SV) constitutes an important type of genetic mutations providing the raw material for evolution. Here, we uncover the genome-wide spectrum of intra- and interspecific SV segregating in natural populations of seven songbird species in the genus Corvus. Combining short-read (N = 127) and long-read re-sequencing (N = 31), as well as optical mapping (N = 16), we apply both assembly- and read mapping approaches to detect SV and characterize a total of 220,452 insertions, deletions and inversions. We exploit sampling across wide phylogenetic timescales to validate SV genotypes and assess the contribution of SV to evolutionary processes in an avian model of incipient speciation. We reveal an evolutionary young (similar to 530,000 years) cis-acting 2.25-kb LTR retrotransposon insertion reducing expression of the NDP gene with consequences for premating isolation. Our results attest to the wealth and evolutionary significance of SV segregating in natural populations and highlight the need for reliable SV genotyping.
Subject headings
- NATURVETENSKAP -- Biologi -- Genetik (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Genetics (hsv//eng)
- NATURVETENSKAP -- Biologi -- Evolutionsbiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Evolutionary Biology (hsv//eng)
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