Linkage Maps of Microsatellite DNA Markers for the Pacific Oyster Crassostrea gigasWe dedicate this study to the memory of Will Borgenson, who reared and cared for the parents of the mapping families.
Abstract We constructed male and female consensus linkage maps for the Pacific oyster Crassostrea gigas, using a total of 102 microsatellite DNA markers typed in 11-day-old larvae from three families. We identified 11 and 12 linkage groups in the male and female consensus maps, respectively. Alignme...
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2004
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Online Access: | http://dx.doi.org/10.1534/genetics.104.027342 https://academic.oup.com/genetics/article-pdf/168/1/351/42215957/genetics0351.pdf |
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croxfordunivpr:10.1534/genetics.104.027342 2024-06-23T07:52:18+00:00 Linkage Maps of Microsatellite DNA Markers for the Pacific Oyster Crassostrea gigasWe dedicate this study to the memory of Will Borgenson, who reared and cared for the parents of the mapping families. Hubert, Sophie Hedgecock, Dennis 2004 http://dx.doi.org/10.1534/genetics.104.027342 https://academic.oup.com/genetics/article-pdf/168/1/351/42215957/genetics0351.pdf en eng Oxford University Press (OUP) https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model Genetics volume 168, issue 1, page 351-362 ISSN 1943-2631 journal-article 2004 croxfordunivpr https://doi.org/10.1534/genetics.104.027342 2024-06-11T04:20:42Z Abstract We constructed male and female consensus linkage maps for the Pacific oyster Crassostrea gigas, using a total of 102 microsatellite DNA markers typed in 11-day-old larvae from three families. We identified 11 and 12 linkage groups in the male and female consensus maps, respectively. Alignment of these separate maps, however, suggests 10 linkage groups, which agrees with the haploid chromosome number. The male linkage map comprises 88 loci and spans 616.1 cM, while the female map comprises 86 loci and spans 770.5 cM. The male and the female maps share 74 loci; 2 markers remain unlinked. The estimated coverages for the consensus linkage maps are 79% for the male and 70–75% for the female, on the basis of two estimates of genome length. Ninety-five percent of the genome is expected to lie within 16 and 21 cM of markers on the male and female maps, respectively, while 95% of simulated minimum distances to the male and female maps are within 10.1 and 13.6 cM, respectively. Females have significantly more recombination than males, across 118 pairs of linked markers in common to the parents of the three families. Significant differences in recombination and orders of markers are also evident among same-sex parents of different families as well as sibling parents of opposite sex. These observations suggest that polymorphism for chromosomal rearrangements may exist in natural populations, which could have profound implications for interpreting the evolutionary genetics of the oyster. These are the first linkage maps for a bivalve mollusc that use microsatellite DNA markers, which should enable them to be transferred to other families and to be useful for further genetic analyses such as QTL mapping. Article in Journal/Newspaper Crassostrea gigas Pacific oyster Oxford University Press Pacific Genetics 168 1 351 362 |
institution |
Open Polar |
collection |
Oxford University Press |
op_collection_id |
croxfordunivpr |
language |
English |
description |
Abstract We constructed male and female consensus linkage maps for the Pacific oyster Crassostrea gigas, using a total of 102 microsatellite DNA markers typed in 11-day-old larvae from three families. We identified 11 and 12 linkage groups in the male and female consensus maps, respectively. Alignment of these separate maps, however, suggests 10 linkage groups, which agrees with the haploid chromosome number. The male linkage map comprises 88 loci and spans 616.1 cM, while the female map comprises 86 loci and spans 770.5 cM. The male and the female maps share 74 loci; 2 markers remain unlinked. The estimated coverages for the consensus linkage maps are 79% for the male and 70–75% for the female, on the basis of two estimates of genome length. Ninety-five percent of the genome is expected to lie within 16 and 21 cM of markers on the male and female maps, respectively, while 95% of simulated minimum distances to the male and female maps are within 10.1 and 13.6 cM, respectively. Females have significantly more recombination than males, across 118 pairs of linked markers in common to the parents of the three families. Significant differences in recombination and orders of markers are also evident among same-sex parents of different families as well as sibling parents of opposite sex. These observations suggest that polymorphism for chromosomal rearrangements may exist in natural populations, which could have profound implications for interpreting the evolutionary genetics of the oyster. These are the first linkage maps for a bivalve mollusc that use microsatellite DNA markers, which should enable them to be transferred to other families and to be useful for further genetic analyses such as QTL mapping. |
format |
Article in Journal/Newspaper |
author |
Hubert, Sophie Hedgecock, Dennis |
spellingShingle |
Hubert, Sophie Hedgecock, Dennis Linkage Maps of Microsatellite DNA Markers for the Pacific Oyster Crassostrea gigasWe dedicate this study to the memory of Will Borgenson, who reared and cared for the parents of the mapping families. |
author_facet |
Hubert, Sophie Hedgecock, Dennis |
author_sort |
Hubert, Sophie |
title |
Linkage Maps of Microsatellite DNA Markers for the Pacific Oyster Crassostrea gigasWe dedicate this study to the memory of Will Borgenson, who reared and cared for the parents of the mapping families. |
title_short |
Linkage Maps of Microsatellite DNA Markers for the Pacific Oyster Crassostrea gigasWe dedicate this study to the memory of Will Borgenson, who reared and cared for the parents of the mapping families. |
title_full |
Linkage Maps of Microsatellite DNA Markers for the Pacific Oyster Crassostrea gigasWe dedicate this study to the memory of Will Borgenson, who reared and cared for the parents of the mapping families. |
title_fullStr |
Linkage Maps of Microsatellite DNA Markers for the Pacific Oyster Crassostrea gigasWe dedicate this study to the memory of Will Borgenson, who reared and cared for the parents of the mapping families. |
title_full_unstemmed |
Linkage Maps of Microsatellite DNA Markers for the Pacific Oyster Crassostrea gigasWe dedicate this study to the memory of Will Borgenson, who reared and cared for the parents of the mapping families. |
title_sort |
linkage maps of microsatellite dna markers for the pacific oyster crassostrea gigaswe dedicate this study to the memory of will borgenson, who reared and cared for the parents of the mapping families. |
publisher |
Oxford University Press (OUP) |
publishDate |
2004 |
url |
http://dx.doi.org/10.1534/genetics.104.027342 https://academic.oup.com/genetics/article-pdf/168/1/351/42215957/genetics0351.pdf |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Crassostrea gigas Pacific oyster |
genre_facet |
Crassostrea gigas Pacific oyster |
op_source |
Genetics volume 168, issue 1, page 351-362 ISSN 1943-2631 |
op_rights |
https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model |
op_doi |
https://doi.org/10.1534/genetics.104.027342 |
container_title |
Genetics |
container_volume |
168 |
container_issue |
1 |
container_start_page |
351 |
op_container_end_page |
362 |
_version_ |
1802643573992062976 |