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Long-term persisten...
Long-term persistence of supernumerary B chromosomes in multiple species of Astyanax fish
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- Zerbinato de Andrade Silva, Duilio Mazzoni (författare)
- Univ Estadual Paulista, Dept Biol Estrutural & Func, Inst Biociencias Botucatu, UNESP, BR-18618970 Botucatu, SP, Brazil.
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- Ruiz-Ruano, Francisco J. (författare)
- Uppsala universitet,Systematisk biologi,Univ Granada, Dept Genet, Granada 18071, Spain.;Univ East Anglia, Sch Biol Sci, Norwich Res Pk, Norwich NR4 7TU, Norfolk, England.
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- Utsunomia, Ricardo (författare)
- Univ Fed Rural Rio de Janeiro, Dept Genet, Inst Ciencias Biol & Saude, BR-23897000 Seropedica, RJ, Brazil.;Univ Estadual Paulista, Dept Ciencias Biol, Fac Ciencias, UNESP, Campus Bauru, BR-17033360 Bauru, SP, Brazil.
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- Martin-Pecina, Maria (författare)
- Univ Granada, Dept Genet, Granada 18071, Spain.
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- Pena Castro, Jonathan (författare)
- Univ Fed Sao Carlos, Dept Genet & Evolucao, UFSCAR, BR-13565905 Sao Carlos, SP, Brazil.;Univ Estadual Ponta Grossa, Dept Biol Estrutural Mol & Genet, BR-84030900 Ponta Grossa, PR, Brazil.
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- Paccielli Freire, Paula (författare)
- Univ Estadual Paulista, Dept Biol Estrutural & Func, Inst Biociencias Botucatu, UNESP, BR-18618970 Botucatu, SP, Brazil.;Univ Sao Paulo, Dept Imunol, Inst Ciencias Biomed, BR-05508900 Sao Paulo, SP, Brazil.
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- Francisco Carvalho, Robson (författare)
- Univ Estadual Paulista, Dept Biol Estrutural & Func, Inst Biociencias Botucatu, UNESP, BR-18618970 Botucatu, SP, Brazil.
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- Hashimoto, Diogo T. (författare)
- Univ Estadual Paulista, Ctr Aquicultura, UNESP, Campus Jaboticabal, BR-14884900 Jaboticabal, SP, Brazil.
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- Suh, Alexander (författare)
- Uppsala universitet,Systematisk biologi,Univ East Anglia, Sch Biol Sci, Norwich Res Pk, Norwich NR4 7TU, Norfolk, England.
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- Oliveira, Claudio (författare)
- Univ Estadual Paulista, Dept Biol Estrutural & Func, Inst Biociencias Botucatu, UNESP, BR-18618970 Botucatu, SP, Brazil.
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- Porto-Foresti, Fabio (författare)
- Univ Estadual Paulista, Dept Ciencias Biol, Fac Ciencias, UNESP, Campus Bauru, BR-17033360 Bauru, SP, Brazil.
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- Ferreira Artoni, Roberto (författare)
- Univ Fed Sao Carlos, Dept Genet & Evolucao, UFSCAR, BR-13565905 Sao Carlos, SP, Brazil.;Univ Estadual Ponta Grossa, Dept Biol Estrutural Mol & Genet, BR-84030900 Ponta Grossa, PR, Brazil.
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- Foresti, Fausto (författare)
- Univ Estadual Paulista, Dept Biol Estrutural & Func, Inst Biociencias Botucatu, UNESP, BR-18618970 Botucatu, SP, Brazil.
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- Camacho, Juan Pedro M. (författare)
- Univ Granada, Dept Genet, Granada 18071, Spain.
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Univ Estadual Paulista, Dept Biol Estrutural & Func, Inst Biociencias Botucatu, UNESP, BR-18618970 Botucatu, SP, Brazil Systematisk biologi (creator_code:org_t)
- 2021-03-19
- 2021
- Engelska.
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Ingår i: BMC Biology. - : BioMed Central (BMC). - 1741-7007. ; 19
- Relaterad länk:
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https://doi.org/10.1...
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https://uu.diva-port... (primary) (Raw object)
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https://bmcbiol.biom...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Background: Eukaryote genomes frequently harbor supernumerary B chromosomes in addition to the "standard" A chromosome set. B chromosomes are thought to arise as byproducts of genome rearrangements and have mostly been considered intraspecific oddities. However, their evolutionary transcendence beyond species level has remained untested.Results: Here we reveal that the large metacentric B chromosomes reported in several fish species of the genus Astyanax arose in a common ancestor at least 4 million years ago. We generated transcriptomes of A. scabripinnis and A. paranae 0B and 1B individuals and used these assemblies as a reference for mapping all gDNA and RNA libraries to quantify coverage differences between B-lacking and B-carrying genomes. We show that the B chromosomes of A. scabripinnis and A. paranae share 19 protein-coding genes, of which 14 and 11 were also present in the B chromosomes of A. bockmanni and A. fasciatus, respectively. Our search for B-specific single-nucleotide polymorphisms (SNPs) identified the presence of B-derived transcripts in B-carrying ovaries, 80% of which belonged to nobox, a gene involved in oogenesis regulation. Importantly, the B chromosome nobox paralog is expressed >30x more than the A chromosome paralog. This indicates that the normal regulation of this gene is altered in B-carrying females, which could potentially facilitate B inheritance at higher rates than Mendelian law prediction.Conclusions: Taken together, our results demonstrate the long-term survival of B chromosomes despite their lack of regular pairing and segregation during meiosis and that they can endure episodes of population divergence leading to species formation.
Ämnesord
- NATURVETENSKAP -- Biologi -- Genetik (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Genetics (hsv//eng)
Nyckelord
- B chromosomes
- Astyanax
- Evolution
- Genomics
- Transcriptomics
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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Zerbinato de And ...
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Ruiz-Ruano, Fran ...
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Utsunomia, Ricar ...
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Martin-Pecina, M ...
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Pena Castro, Jon ...
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Paccielli Freire ...
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Francisco Carval ...
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Hashimoto, Diogo ...
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Suh, Alexander
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Oliveira, Claudi ...
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Porto-Foresti, F ...
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Ferreira Artoni, ...
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Foresti, Fausto
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Camacho, Juan Pe ...
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