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Avian Neo-Sex Chrom...
Avian Neo-Sex Chromosomes Reveal Dynamics of Recombination Suppression and W Degeneration
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- Sigeman, Hanna (author)
- Lund University,Lunds universitet,MEMEG,Biologiska institutionen,Naturvetenskapliga fakulteten,Könsskillnadernas genetik,Forskargrupper vid Lunds universitet,Molekylär ekologi och evolution,Department of Biology,Faculty of Science,Genetics of Sex Differences,Lund University Research Groups,Molecular Ecology and Evolution Lab
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- Strandh, Maria (author)
- Lund University,Lunds universitet,MEMEG,Biologiska institutionen,Naturvetenskapliga fakulteten,Molekylär ekologi och evolution,Forskargrupper vid Lunds universitet,Department of Biology,Faculty of Science,Molecular Ecology and Evolution Lab,Lund University Research Groups
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- Proux-Wéra, Estelle (author)
- Stockholm University,Stockholms universitet,Institutionen för biokemi och biofysik,Science for Life Laboratory (SciLifeLab),Stockholm Univ, Dept Biochem & Biophys, Sci Life Lab, Natl Bioinformat Infrastruct Sweden, Solna, Sweden.
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- Kutschera, Verena E. (author)
- Stockholm University,Stockholms universitet,Institutionen för biokemi och biofysik,Science for Life Laboratory (SciLifeLab),Stockholm Univ, Dept Biochem & Biophys, Sci Life Lab, Natl Bioinformat Infrastruct Sweden, Solna, Sweden.
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- Ponnikas, Suvi (author)
- Lund University,Lunds universitet,MEMEG,Biologiska institutionen,Naturvetenskapliga fakulteten,Department of Biology,Faculty of Science
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- Zhang, Hongkai (author)
- Lund University,Lunds universitet,MEMEG,Biologiska institutionen,Naturvetenskapliga fakulteten,Molekylär ekologi och evolution,Forskargrupper vid Lunds universitet,Department of Biology,Faculty of Science,Molecular Ecology and Evolution Lab,Lund University Research Groups
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- Lundberg, Max (author)
- Lund University,Lunds universitet,MEMEG,Biologiska institutionen,Naturvetenskapliga fakulteten,Molekylär ekologi och evolution,Forskargrupper vid Lunds universitet,CAnMove - Centrum för forskning om djurs spridning och flyttning,Department of Biology,Faculty of Science,Molecular Ecology and Evolution Lab,Lund University Research Groups,CAnMove - Centre for Animal Movement Research
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- Soler, Lucile (author)
- Uppsala University,Uppsala universitet,Institutionen för medicinsk biokemi och mikrobiologi,Science for Life Laboratory, SciLifeLab
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- Bunikis, Ignas (author)
- Uppsala University,Uppsala universitet,Science for Life Laboratory, SciLifeLab,Institutionen för immunologi, genetik och patologi
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- Tarka, Maja (author)
- Lund University,Lunds universitet,MEMEG,Biologiska institutionen,Naturvetenskapliga fakulteten,Molekylär ekologi och evolution,Forskargrupper vid Lunds universitet,CAnMove - Centrum för forskning om djurs spridning och flyttning,Department of Biology,Faculty of Science,Molecular Ecology and Evolution Lab,Lund University Research Groups,CAnMove - Centre for Animal Movement Research
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- Hasselquist, Dennis (author)
- Lund University,Lunds universitet,MEMEG,Biologiska institutionen,Naturvetenskapliga fakulteten,Livshistoria och funktionell ekologi,Forskargrupper vid Lunds universitet,Molekylär ekologi och evolution,CAnMove - Centrum för forskning om djurs spridning och flyttning,Department of Biology,Faculty of Science,Life History and Functional Ecology,Lund University Research Groups,Molecular Ecology and Evolution Lab,CAnMove - Centre for Animal Movement Research
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- Nystedt, Björn, 1978- (author)
- Uppsala University,Uppsala universitet,Molekylär evolution,Science for Life Laboratory, SciLifeLab
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- Westerdahl, Helena (author)
- Lund University,Lunds universitet,MEMEG,Biologiska institutionen,Naturvetenskapliga fakulteten,Molekylär ekologi och evolution,Forskargrupper vid Lunds universitet,CAnMove - Centrum för forskning om djurs spridning och flyttning,Department of Biology,Faculty of Science,Molecular Ecology and Evolution Lab,Lund University Research Groups,CAnMove - Centre for Animal Movement Research
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- Hansson, Bengt (author)
- Lund University,Lunds universitet,MEMEG,Biologiska institutionen,Naturvetenskapliga fakulteten,Könsskillnadernas genetik,Forskargrupper vid Lunds universitet,Molekylär ekologi och evolution,CAnMove - Centrum för forskning om djurs spridning och flyttning,Department of Biology,Faculty of Science,Genetics of Sex Differences,Lund University Research Groups,Molecular Ecology and Evolution Lab,CAnMove - Centre for Animal Movement Research
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(creator_code:org_t)
- 2021-09-20
- 2021
- English.
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In: Molecular biology and evolution. - : Oxford University Press. - 0737-4038 .- 1537-1719. ; 38:12, s. 5275-5291
- Related links:
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
Close
- How the avian sex chromosomes first evolved from autosomes remains elusive as 100 million years (My) of divergence and degeneration obscure their evolutionary history. The Sylvioidea group of songbirds is interesting for understanding avian sex chromosome evolution because a chromosome fusion event similar to 24 Ma formed "neo-sex chromosomes" consisting of an added (new) and an ancestral (old) part. Here, we report the complete female genome (ZW) of one Sylvioidea species, the great reed warbler (Acrocephalus arundinaceus). Our long-read assembly shows that the added region has been translocated to both Z and W, and whereas the added-Z has retained its gene order the added-W part has been heavily rearranged. Phylogenetic analyses show that recombination between the homologous added-Z and -W regions continued after the fusion event, and that recombination suppression across this region took several million years to be completed. Moreover, recombination suppression was initiated across multiple positions over the added-Z, which is not consistent with a simple linear progression starting from the fusion point. As expected following recombination suppression, the added-W show signs of degeneration including repeat accumulation and gene loss. Finally, we present evidence for nonrandom maintenance of slowly evolving and dosage-sensitive genes on both ancestral- and added-W, a process causing correlated evolution among orthologous genes across broad taxonomic groups, regardless of sex linkage.
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)
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
Keyword
- sex chromosome
- neo-sex chromosome
- recombination
- degeneration
- vertebrate
- bird
- bird
- degeneration
- neo-sex chromosome
- recombination
- sex chromosome
- vertebrate
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Sigeman, Hanna
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Strandh, Maria
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Proux-Wéra, Este ...
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Kutschera, Veren ...
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Ponnikas, Suvi
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Zhang, Hongkai
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show more...
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Lundberg, Max
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Soler, Lucile
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Bunikis, Ignas
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Tarka, Maja
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Hasselquist, Den ...
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Nystedt, Björn, ...
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Westerdahl, Hele ...
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Hansson, Bengt
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
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and Genetics
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
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and Evolutionary Bio ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
- Articles in the publication
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Molecular biolog ...
- By the university
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Uppsala University
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Stockholm University
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Lund University