Linkage maps of microsatellite dna markers for the pacific oyster crassostrea gigas
We constructed male and female consensus linkage maps for the Pacific oyster Crassostrea g,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 Fern ale consensus maps, respectively. Alignment of...
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Genetics Society of America
2004
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ftnuigalway:oai:https://researchrepository.universityofgalway.ie:10379/9322 2024-10-06T13:48:08+00:00 Linkage maps of microsatellite dna markers for the pacific oyster crassostrea gigas Hubert, S. 2004-09-01 http://hdl.handle.net/10379/9322 https://doi.org/10.13025/23506 https://doi.org/10.1534/genetics.104.027342 unknown Genetics Society of America Genetics Hubert, S. (2004). Linkage maps of microsatellite dna markers for the pacific oyster crassostrea gigas. Genetics 168 (1), 351-362 0016-6731 http://hdl.handle.net/10379/9322 https://doi.org/10.13025/23506 doi:10.1534/genetics.104.027342 Attribution-NonCommercial-NoDerivs 3.0 Ireland https://creativecommons.org/licenses/by-nc-nd/3.0/ie/ comprehensive genetic-map zebrafish danio-rerio negative correlation recombination rates mouse genome thunberg growth heterozygosity aneuploidy sex Article 2004 ftnuigalway https://doi.org/10.13025/2350610.1534/genetics.104.027342 2024-09-17T14:44:29Z We constructed male and female consensus linkage maps for the Pacific oyster Crassostrea g,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 Fern ale 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 markets 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 markets, 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 National University of Ireland (NUI), Galway: ARAN Pacific |
institution |
Open Polar |
collection |
National University of Ireland (NUI), Galway: ARAN |
op_collection_id |
ftnuigalway |
language |
unknown |
topic |
comprehensive genetic-map zebrafish danio-rerio negative correlation recombination rates mouse genome thunberg growth heterozygosity aneuploidy sex |
spellingShingle |
comprehensive genetic-map zebrafish danio-rerio negative correlation recombination rates mouse genome thunberg growth heterozygosity aneuploidy sex Hubert, S. Linkage maps of microsatellite dna markers for the pacific oyster crassostrea gigas |
topic_facet |
comprehensive genetic-map zebrafish danio-rerio negative correlation recombination rates mouse genome thunberg growth heterozygosity aneuploidy sex |
description |
We constructed male and female consensus linkage maps for the Pacific oyster Crassostrea g,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 Fern ale 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 markets 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 markets, 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, S. |
author_facet |
Hubert, S. |
author_sort |
Hubert, S. |
title |
Linkage maps of microsatellite dna markers for the pacific oyster crassostrea gigas |
title_short |
Linkage maps of microsatellite dna markers for the pacific oyster crassostrea gigas |
title_full |
Linkage maps of microsatellite dna markers for the pacific oyster crassostrea gigas |
title_fullStr |
Linkage maps of microsatellite dna markers for the pacific oyster crassostrea gigas |
title_full_unstemmed |
Linkage maps of microsatellite dna markers for the pacific oyster crassostrea gigas |
title_sort |
linkage maps of microsatellite dna markers for the pacific oyster crassostrea gigas |
publisher |
Genetics Society of America |
publishDate |
2004 |
url |
http://hdl.handle.net/10379/9322 https://doi.org/10.13025/23506 https://doi.org/10.1534/genetics.104.027342 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Crassostrea gigas Pacific oyster |
genre_facet |
Crassostrea gigas Pacific oyster |
op_relation |
Genetics Hubert, S. (2004). Linkage maps of microsatellite dna markers for the pacific oyster crassostrea gigas. Genetics 168 (1), 351-362 0016-6731 http://hdl.handle.net/10379/9322 https://doi.org/10.13025/23506 doi:10.1534/genetics.104.027342 |
op_rights |
Attribution-NonCommercial-NoDerivs 3.0 Ireland https://creativecommons.org/licenses/by-nc-nd/3.0/ie/ |
op_doi |
https://doi.org/10.13025/2350610.1534/genetics.104.027342 |
_version_ |
1812176287005933568 |