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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Comparative mapping of a new repetitive DNA sequence and chromosome region-specific probes unveiling rearrangements in an Amazonian frog complex

Texto completo
Gatto, Kaleb Pretto [1] ; Souza, Lucas H. B. [1] ; Nascimento, Juliana [1] ; Suarez, Pablo [2] ; Lourenco, Luciana Bolsoni [1]
Número total de Autores: 5
Afiliação do(s) autor(es):
[1] Univ Estadual Campinas, Inst Biol, Dept Biol Estrutural & Func, Lab Estudos Cromossom LabEsC, Campinas, SP - Brazil
[2] Inst Biol Subtrop CONICET UNaM, Puerto Iguazu, Misiones - Argentina
Número total de Afiliações: 2
Tipo de documento: Artigo Científico
Fonte: GENOME; v. 64, n. 9, p. 857-868, SEP 2021.
Citações Web of Science: 0

The frog species Physalaemus ephippifer exists in the Amazonian region and harbors heteromorphic Z and W chromosomes. A genetic lineage closely related to this species was recognized based on its mitochondria) DNA and RADseq-style markers, but its taxonomic status is still undear and has been referred to as Lineage 1 of ``P. cuvieri{''}. The heteromorphic sex chromosomes found in P. ephippifer are not present in this lineage and which of its chromosome pairs is homologous to the sex chromosomes of P. ephippifer remain to be elucidated as well as the role of such a karyotypic divergence in the evolution of these frogs. Here, we described a new family of repetitive DNA and used its chromosomal sites along with the markers detected by a probe constructed from the microdissected segment of the Z chromosome of P. ephippifer to infer chromosomal homology. We also analyzed an unnamed species that is considered to be the sister group of the lade composed of Lineage 1 of ``P. cuvieri{''} and P. ephippifer. Our results suggest that complex rearrangements involving the chromosomes that were inferred to be homeologous to the sex chromosomes of P. ephippifer have occurred during the divergence of this group of frogs. (AU)

Processo FAPESP: 17/15842-8 - Análise citogenética e filogenética do complexo Physalaemus cuvieri - P. ephippifer (Anura, Leptodactylidae)
Beneficiário:Luciana Bolsoni Lourenço
Modalidade de apoio: Auxílio à Pesquisa - Regular
Processo FAPESP: 11/09239-0 - Análise filogenética e investigação de cromossomos sexuais e supranumerário de Physalaemus (Anura, Leiuperidae): uma contribuição para a análise da evolução cromossômica no gênero
Beneficiário:Luciana Bolsoni Lourenço
Modalidade de apoio: Auxílio à Pesquisa - Regular