Literature DB >> 8889246

Heteromorphic sex chromosomes in Eupsophus insularis (Amphibia: Anura: Leptodactylidae).

C C Cuevas1, J R Formas.   

Abstract

The chromosomes of the Chilean frog Eupsophus insularis are described for the first time. This species has a chromosome number of 2n = 30, and based on the karyotype it is concluded that E. insularis is closely related to E. migueli. E. insularis has an XX/XY system of sex determination, and pericentromeric constitutive heterochromatin is present in all chromosomes except in the Y chromosome. It is postulated that the Y chromosome is derived from a small ancestral metacentric chromosome that lost its heterochromatic segment.

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Year:  1996        PMID： 8889246     DOI： 10.1007/bf02265054

Source DB:  PubMed          Journal:  Chromosome Res        ISSN： 0967-3849            Impact factor:   5.239


  9 in total

1.  Chromosome banding in Amphibia. XVII. First demonstration of multiple sex chromosomes in amphibians: Eleutherodactylus maussi (Anura, leptodactylidae).

Authors:  M Schmid; C Steinlein; W Feichtinger
Journal:  Chromosoma       Date:  1992-03       Impact factor: 4.316

2.  A simple technique for demonstrating centromeric heterochromatin.

Authors:  A T Sumner
Journal:  Exp Cell Res       Date:  1972-11       Impact factor: 3.905

3.  Systematic problems in the amphibian family Leptodactylidae (Anura) as indicated by karyotypic analysis.

Authors:  J P Bogart
Journal:  Cytogenetics       Date:  1970

4.  Chromosome banding in Amphibia. XIX. Primitive ZW/ZZ sex chromosomes in Buergeria buergeri (Anura, Rhacophoridae).

Authors:  M Schmid; S Ohta; C Steinlein; M Guttenbach
Journal:  Cytogenet Cell Genet       Date:  1993

5.  Chromosome banding in Amphibia. VI. BrdU-replication patterns in anura and demonstration of XX/XY sex chromosomes in Rana esculenta.

Authors:  W Schempp; M Schmid
Journal:  Chromosoma       Date:  1981       Impact factor: 4.316

Review 6.  Evolution of sex chromosomes and heterogametic systems in amphibia.

Authors:  M Schmid
Journal:  Differentiation       Date:  1983       Impact factor: 3.880

7.  Chromosome banding in Amphibia. VIII. An unusual XY/XX-sex chromosome system in Gastrotheca riobambae (Anura, Hylidae).

Authors:  M Schmid; T Haaf; B Geile; S Sims
Journal:  Chromosoma       Date:  1983       Impact factor: 4.316

8.  Conserved repeated DNA sequences in vertebrate sex chromosomes.

Authors:  K W Jones; L Singh
Journal:  Hum Genet       Date:  1981       Impact factor: 4.132
  9 in total
  4 in total

1.  Heteromorphic Z and W sex chromosomes in Physalaemus ephippifer (Steindachner, 1864) (Anura, Leiuperidae).

Authors:  Juliana Nascimento; Yeda Rumi Serra Douglas Quinderé; Shirlei Maria Recco-Pimentel; Janaína Reis Ferreira Lima; Luciana Bolsoni Lourenço
Journal:  Genetica       Date:  2010-09-30       Impact factor: 1.082

2.  Sex chromosome evolution in frogs-helpful insights from chromosome painting in the genus Engystomops.

Authors:  Cíntia P Targueta; Vladimir Krylov; Tobias E Nondilo; Jucivaldo Lima; Luciana B Lourenço
Journal:  Heredity (Edinb)       Date:  2020-11-12       Impact factor: 3.821

3.  Unraveling the Sex Chromosome Heteromorphism of the Paradoxical Frog Pseudis tocantins.

Authors:  Kaleb Pretto Gatto; Carmen Silvia Busin; Luciana Bolsoni Lourenço
Journal:  PLoS One       Date:  2016-05-23       Impact factor: 3.240

4.  Comparative cytogenetics of the ground frogs Eupsophus emiliopugini Formas, 1989 and E. vertebralis Grandison, 1961 (Alsodidae) with comments on their inter- and intraspecific chromosome differentiation.

Authors:  Camila A Quercia; Elkin Y Suárez-Villota; Fausto Foresti; José J Nuñez
Journal:  Comp Cytogenet       Date:  2020-01-27       Impact factor: 1.800
  4 in total

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