Chromosome evolution in Cophomantini (Amphibia, Anura, Hylinae)
The hylid tribe Cophomantini is a diverse clade of Neotropical treefrogs composed of the genera Aplastodiscus, Boana, Bokermannohyla, Hyloscirtus, and Myersiohyla. The phylogenetic relationships of Cophomantini have been comprehensively reviewed in the literature, providing a suitable framework for...
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2018
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Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_19326203_v13_n2_p_Ferro http://hdl.handle.net/20.500.12110/paper_19326203_v13_n2_p_Ferro |
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paper:paper_19326203_v13_n2_p_Ferro2023-06-08T16:30:46Z Chromosome evolution in Cophomantini (Amphibia, Anura, Hylinae) adult Anura case report centromere chromosome marker clinical article female genetic marker heterochromatin human karyotype evolution male nonhuman review animal Anura chromosome chromosome banding pattern chromosome NOR classification diploidy genetic variation genetics karyotype karyotyping molecular evolution phylogeny polyploidy sex chromosome species difference Animals Anura Chromosome Banding Chromosomes Diploidy Evolution, Molecular Female Genetic Variation Heterochromatin Karyotype Karyotyping Male Nucleolus Organizer Region Phylogeny Polyploidy Sex Chromosomes Species Specificity The hylid tribe Cophomantini is a diverse clade of Neotropical treefrogs composed of the genera Aplastodiscus, Boana, Bokermannohyla, Hyloscirtus, and Myersiohyla. The phylogenetic relationships of Cophomantini have been comprehensively reviewed in the literature, providing a suitable framework for the study of chromosome evolution. Employing different banding techniques, we studied the chromosomes of 25 species of Boana and 3 of Hyloscirtus; thus providing, for the first time, data for Hyloscirtus and for 15 species of Boana. Most species showed karyotypes with 2n = 2x = 24 chromosomes; some species of the B. albopunctata group have 2n = 2x = 22, and H. alytolylax has 2n = 2x = 20. Karyotypes are all bi-armed in most species presented, with the exception of H. larinopygion (FN = 46) and H. alytolylax (FN = 38), with karyotypes that have a single pair of small telocentric chromosomes. In most species of Boana, NORs are observed in a single pair of chromosomes, mostly in the small chromosomes, although in some species of the B. albopunctata, B. pulchella, and B. semilineata groups, this marker occurs on the larger pairs 8, 1, and 7, respectively. In Hyloscirtus, NOR position differs in the three studied species: H. alytolylax (4p), H. palmeri (4q), and H. larinopygion (1p). Heterochromatin is a variable marker that could provide valuable evidence, but it would be necesserary to understand the molecular composition of the C-bands that are observed in different species in order to test its putative homology. In H. alytolylax, a centromeric DAPI+ band was observed on one homologue of chromosome pair 2. The band was present in males but absent in females, providing evidence for an XX/XY sex determining system in this species. We review and discuss the importance of the different chromosome markers (NOR position, C-bands, and DAPI/CMA3 patterns) for their impact on the taxonomy and karyotype evolution in Cophomantini. © 2018 Ferro et al.This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original.author and source are credited. 2018 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_19326203_v13_n2_p_Ferro http://hdl.handle.net/20.500.12110/paper_19326203_v13_n2_p_Ferro |
institution |
Universidad de Buenos Aires |
institution_str |
I-28 |
repository_str |
R-134 |
collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
topic |
adult Anura case report centromere chromosome marker clinical article female genetic marker heterochromatin human karyotype evolution male nonhuman review animal Anura chromosome chromosome banding pattern chromosome NOR classification diploidy genetic variation genetics karyotype karyotyping molecular evolution phylogeny polyploidy sex chromosome species difference Animals Anura Chromosome Banding Chromosomes Diploidy Evolution, Molecular Female Genetic Variation Heterochromatin Karyotype Karyotyping Male Nucleolus Organizer Region Phylogeny Polyploidy Sex Chromosomes Species Specificity |
spellingShingle |
adult Anura case report centromere chromosome marker clinical article female genetic marker heterochromatin human karyotype evolution male nonhuman review animal Anura chromosome chromosome banding pattern chromosome NOR classification diploidy genetic variation genetics karyotype karyotyping molecular evolution phylogeny polyploidy sex chromosome species difference Animals Anura Chromosome Banding Chromosomes Diploidy Evolution, Molecular Female Genetic Variation Heterochromatin Karyotype Karyotyping Male Nucleolus Organizer Region Phylogeny Polyploidy Sex Chromosomes Species Specificity Chromosome evolution in Cophomantini (Amphibia, Anura, Hylinae) |
topic_facet |
adult Anura case report centromere chromosome marker clinical article female genetic marker heterochromatin human karyotype evolution male nonhuman review animal Anura chromosome chromosome banding pattern chromosome NOR classification diploidy genetic variation genetics karyotype karyotyping molecular evolution phylogeny polyploidy sex chromosome species difference Animals Anura Chromosome Banding Chromosomes Diploidy Evolution, Molecular Female Genetic Variation Heterochromatin Karyotype Karyotyping Male Nucleolus Organizer Region Phylogeny Polyploidy Sex Chromosomes Species Specificity |
description |
The hylid tribe Cophomantini is a diverse clade of Neotropical treefrogs composed of the genera Aplastodiscus, Boana, Bokermannohyla, Hyloscirtus, and Myersiohyla. The phylogenetic relationships of Cophomantini have been comprehensively reviewed in the literature, providing a suitable framework for the study of chromosome evolution. Employing different banding techniques, we studied the chromosomes of 25 species of Boana and 3 of Hyloscirtus; thus providing, for the first time, data for Hyloscirtus and for 15 species of Boana. Most species showed karyotypes with 2n = 2x = 24 chromosomes; some species of the B. albopunctata group have 2n = 2x = 22, and H. alytolylax has 2n = 2x = 20. Karyotypes are all bi-armed in most species presented, with the exception of H. larinopygion (FN = 46) and H. alytolylax (FN = 38), with karyotypes that have a single pair of small telocentric chromosomes. In most species of Boana, NORs are observed in a single pair of chromosomes, mostly in the small chromosomes, although in some species of the B. albopunctata, B. pulchella, and B. semilineata groups, this marker occurs on the larger pairs 8, 1, and 7, respectively. In Hyloscirtus, NOR position differs in the three studied species: H. alytolylax (4p), H. palmeri (4q), and H. larinopygion (1p). Heterochromatin is a variable marker that could provide valuable evidence, but it would be necesserary to understand the molecular composition of the C-bands that are observed in different species in order to test its putative homology. In H. alytolylax, a centromeric DAPI+ band was observed on one homologue of chromosome pair 2. The band was present in males but absent in females, providing evidence for an XX/XY sex determining system in this species. We review and discuss the importance of the different chromosome markers (NOR position, C-bands, and DAPI/CMA3 patterns) for their impact on the taxonomy and karyotype evolution in Cophomantini. © 2018 Ferro et al.This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original.author and source are credited. |
title |
Chromosome evolution in Cophomantini (Amphibia, Anura, Hylinae) |
title_short |
Chromosome evolution in Cophomantini (Amphibia, Anura, Hylinae) |
title_full |
Chromosome evolution in Cophomantini (Amphibia, Anura, Hylinae) |
title_fullStr |
Chromosome evolution in Cophomantini (Amphibia, Anura, Hylinae) |
title_full_unstemmed |
Chromosome evolution in Cophomantini (Amphibia, Anura, Hylinae) |
title_sort |
chromosome evolution in cophomantini (amphibia, anura, hylinae) |
publishDate |
2018 |
url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_19326203_v13_n2_p_Ferro http://hdl.handle.net/20.500.12110/paper_19326203_v13_n2_p_Ferro |
_version_ |
1768545303211802624 |