Microsatellite Genetic Characterization of the Humpback Whale (Megaptera novaeangliae) Breeding Ground off Brazil (Breeding Stock A)
The Southwestern Atlantic Ocean humpback whales wintering ground (breeding stock A) are distributed along the Brazilian coast (5–23°S), and their main mating and calving ground is in the Abrolhos Bank. We investigated genetic diversity, population structure, and relatedness of individuals sampled fr...
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fthighwire:oai:open-archive.highwire.org:jhered:esp097v1 2023-05-15T16:35:56+02:00 Microsatellite Genetic Characterization of the Humpback Whale (Megaptera novaeangliae) Breeding Ground off Brazil (Breeding Stock A) Cypriano-Souza, Ana Lúcia Fernández, Gabriela P. Lima-Rosa, Carlos André V. Engel, Márcia H. Bonatto, Sandro L. 2009-11-04 04:30:09.0 text/html http://jhered.oxfordjournals.org/cgi/content/short/esp097v1 https://doi.org/10.1093/jhered/esp097 en eng Oxford University Press http://jhered.oxfordjournals.org/cgi/content/short/esp097v1 http://dx.doi.org/10.1093/jhered/esp097 Copyright (C) 2009, American Genetic Association Article TEXT 2009 fthighwire https://doi.org/10.1093/jhered/esp097 2013-05-28T10:24:21Z The Southwestern Atlantic Ocean humpback whales wintering ground (breeding stock A) are distributed along the Brazilian coast (5–23°S), and their main mating and calving ground is in the Abrolhos Bank. We investigated genetic diversity, population structure, and relatedness of individuals sampled from the entire Southwest Atlantic humpback whale population. A total of 275 individuals sampled from 2 subregions (Abrolhos Bank, n = 229 and Praia do Forte, n = 46) were screened for 9 microsatellite loci. This population showed a high level of allelic diversity ( A = 12.1) and a high mean observed heterozygosity ( H O = 0.733). No signal of significant genetic bottleneck was detected in accordance with the mitochondrial DNA data. We find no evidence of temporal (between years) genetic structure as well as no genetic differentiation between whales from the 2 subregions of the Brazilian breeding ground. We observed that the proportion of males and females in this population was approximately 1:1, which differs from the male-biased sex ratio observed in other breeding grounds. The data obtained through this study provided no evidence of kinship associations within social groups. Finally, a female sampled off South Georgia Islands showed a putative parent–offspring relationship with a female off Abrolhos Bank, supporting the migratory link between these 2 areas. Text Humpback Whale Megaptera novaeangliae HighWire Press (Stanford University) Journal of Heredity 101 2 189 200 |
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Article Cypriano-Souza, Ana Lúcia Fernández, Gabriela P. Lima-Rosa, Carlos André V. Engel, Márcia H. Bonatto, Sandro L. Microsatellite Genetic Characterization of the Humpback Whale (Megaptera novaeangliae) Breeding Ground off Brazil (Breeding Stock A) |
topic_facet |
Article |
description |
The Southwestern Atlantic Ocean humpback whales wintering ground (breeding stock A) are distributed along the Brazilian coast (5–23°S), and their main mating and calving ground is in the Abrolhos Bank. We investigated genetic diversity, population structure, and relatedness of individuals sampled from the entire Southwest Atlantic humpback whale population. A total of 275 individuals sampled from 2 subregions (Abrolhos Bank, n = 229 and Praia do Forte, n = 46) were screened for 9 microsatellite loci. This population showed a high level of allelic diversity ( A = 12.1) and a high mean observed heterozygosity ( H O = 0.733). No signal of significant genetic bottleneck was detected in accordance with the mitochondrial DNA data. We find no evidence of temporal (between years) genetic structure as well as no genetic differentiation between whales from the 2 subregions of the Brazilian breeding ground. We observed that the proportion of males and females in this population was approximately 1:1, which differs from the male-biased sex ratio observed in other breeding grounds. The data obtained through this study provided no evidence of kinship associations within social groups. Finally, a female sampled off South Georgia Islands showed a putative parent–offspring relationship with a female off Abrolhos Bank, supporting the migratory link between these 2 areas. |
format |
Text |
author |
Cypriano-Souza, Ana Lúcia Fernández, Gabriela P. Lima-Rosa, Carlos André V. Engel, Márcia H. Bonatto, Sandro L. |
author_facet |
Cypriano-Souza, Ana Lúcia Fernández, Gabriela P. Lima-Rosa, Carlos André V. Engel, Márcia H. Bonatto, Sandro L. |
author_sort |
Cypriano-Souza, Ana Lúcia |
title |
Microsatellite Genetic Characterization of the Humpback Whale (Megaptera novaeangliae) Breeding Ground off Brazil (Breeding Stock A) |
title_short |
Microsatellite Genetic Characterization of the Humpback Whale (Megaptera novaeangliae) Breeding Ground off Brazil (Breeding Stock A) |
title_full |
Microsatellite Genetic Characterization of the Humpback Whale (Megaptera novaeangliae) Breeding Ground off Brazil (Breeding Stock A) |
title_fullStr |
Microsatellite Genetic Characterization of the Humpback Whale (Megaptera novaeangliae) Breeding Ground off Brazil (Breeding Stock A) |
title_full_unstemmed |
Microsatellite Genetic Characterization of the Humpback Whale (Megaptera novaeangliae) Breeding Ground off Brazil (Breeding Stock A) |
title_sort |
microsatellite genetic characterization of the humpback whale (megaptera novaeangliae) breeding ground off brazil (breeding stock a) |
publisher |
Oxford University Press |
publishDate |
2009 |
url |
http://jhered.oxfordjournals.org/cgi/content/short/esp097v1 https://doi.org/10.1093/jhered/esp097 |
genre |
Humpback Whale Megaptera novaeangliae |
genre_facet |
Humpback Whale Megaptera novaeangliae |
op_relation |
http://jhered.oxfordjournals.org/cgi/content/short/esp097v1 http://dx.doi.org/10.1093/jhered/esp097 |
op_rights |
Copyright (C) 2009, American Genetic Association |
op_doi |
https://doi.org/10.1093/jhered/esp097 |
container_title |
Journal of Heredity |
container_volume |
101 |
container_issue |
2 |
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189 |
op_container_end_page |
200 |
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1766026236908273664 |