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Landscape of snake' sex chromosomes evolution spanning 85 MYR reveals ancestry of sequences despite distinct evolutionary trajectories.
Viana, Patrik F; Ezaz, Tariq; de Bello Cioffi, Marcelo; Liehr, Thomas; Al-Rikabi, Ahmed; Goll, Leonardo G; Rocha, Anderson M; Feldberg, Eliana.
Afiliação
  • Viana PF; Coordenação de Biodiversidade, Laboratory of Animal Genetics, Instituto Nacional de Pesquisas da Amazônia, Av. André Araújo 2936, Petrópolis, Manaus, AM, 69067-375, Brazil. patrik.biologia@gmail.com.
  • Ezaz T; Institute for Applied Ecology, Faculty of Science and Technology, University of Canberra, ACT 12, Canberra, 2616, Australia.
  • de Bello Cioffi M; Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, SP, Brazil.
  • Liehr T; Institute of Human Genetics, University Hospital Jena, Am Klinikum 1, 07747, Jena, Germany.
  • Al-Rikabi A; Institute of Human Genetics, University Hospital Jena, Am Klinikum 1, 07747, Jena, Germany.
  • Goll LG; Institute of Human Genetics, University Hospital Jena, Am Klinikum 1, 07747, Jena, Germany.
  • Rocha AM; Coordenação de Biodiversidade, Laboratory of Animal Genetics, Instituto Nacional de Pesquisas da Amazônia, Av. André Araújo 2936, Petrópolis, Manaus, AM, 69067-375, Brazil.
  • Feldberg E; Faculdade Cathedral, Laboratório de Zoologia Aplicada de Vertebrados Terrestres E Aquáticos, Av. Luis Canuto Chaves 293, Boa Vista, RR, Brazil.
Sci Rep ; 10(1): 12499, 2020 07 27.
Article em En | MEDLINE | ID: mdl-32719365
ABSTRACT
Most of snakes exhibit a ZZ/ZW sex chromosome system, with different stages of degeneration. However, undifferentiated sex chromosomes and unique Y sex-linked markers, suggest that an XY system has also evolved in ancestral lineages. Comparative cytogenetic mappings revealed that several genes share ancestry among X, Y and Z chromosomes, implying that XY and ZW may have undergone transitions during serpent's evolution. In this study, we performed a comparative cytogenetic analysis to identify homologies of sex chromosomes across ancestral (Henophidia) and more recent (Caenophidia) snakes. Our analysis suggests that, despite ~ 85 myr of independent evolution, henophidians and caenophidians retained conserved synteny over much of their genomes. However, our findings allowed us to discover that ancestral and recent lineages of snakes do not share the same sex chromosome and followed distinct pathways for sex chromosomes evolution.
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Texto completo: 1 Base de dados: MEDLINE Assunto principal: Filogenia / Cromossomos Sexuais / Serpentes / Evolução Molecular Tipo de estudo: Prognostic_studies Limite: Animals Idioma: En Ano de publicação: 2020 Tipo de documento: Article
Texto completo
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XML
PubMed Links
Buscar no Google

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Filogenia / Cromossomos Sexuais / Serpentes / Evolução Molecular Tipo de estudo: Prognostic_studies Limite: Animals Idioma: En Ano de publicação: 2020 Tipo de documento: Article