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פותח על ידי קלירמאש פתרונות בע"מ -
Recent duplication of the common carp (Cyprinus carpio L.) Genome as revealed by analyses of microsatellite loci
Year:
2003
Source of publication :
Molecular Biology and Evolution
Authors :
לביא, אורי
;
.
Volume :
20
Co-Authors:
David, L., Department of Biological Sciences, Stanford University, Rehovot, Israel, Dept. of Field Crops and Genetics, Fac. Agric., Food/Environ. Qual. S., Hebrew University of Jerusalem, Rehovot, Israel
Blum, S., Dept. of Field Crops and Genetics, Fac. Agric., Food/Environ. Qual. S., Hebrew University of Jerusalem, Rehovot, Israel
Feldman, M.W., Department of Biological Sciences, Stanford University, Rehovot, Israel
Lavi, U., Institute of Horticulture, ARO-Volcani Center, Bet-Dagan, Israel
Hillel, J., Dept. of Field Crops and Genetics, Fac. Agric., Food/Environ. Qual. S., Hebrew University of Jerusalem, Rehovot, Israel
Facilitators :
From page:
1425
To page:
1434
(
Total pages:
10
)
Abstract:
Genome duplications may have played a role in the early stages of vertebrate evolution, near the time of divergence of the lamprey lineage. Additional genome duplication, specifically in ray-finned fish, may have occurred before the divergence of the teleosts, The common carp (Cyprinus carpio) has been considered tetraploid because of its chromosome number (2n = 100) and its high DNA content, We studied variation using 59 microsatellite primer pairs to better understand the ploidy level of the common carp, Based on the number of PCR amplicons per individual, about 60% of these primer pairs are estimated to amplify duplicates, Segregation patterns in families suggested a partially duplicated genome structure and disomic inheritance, This could suggest that the common carp is tetraploid and that polyploidy occurred by hybridization (allotetraploidy), From sequences of microsatellite flanking regions, we estimated the difference per base between pairs of alleles and between pairs of paralogs. The distribution of differences between paralogs had two distinct modes suggesting one whole-genome duplication and a more recent wave of segmental duplications. The genome duplication was estimated to have occurred about 12 MYA, with the segmental duplications occurring between 2.3 and 6.8 MYA. At 12 MYA, this would be one of the most recent genome duplications among vertebrates. Phylogenetic analysis of several cyprinid species suggests an evolutionary model for this tetraploidization, with a role for polyploidization in speciation and diversification.
Note:
Related Files :
Animals
Cyprinidae
Cyprinus carpio
Diversification
Evolution
Genes, Duplicate
Genome
hybridization
multigene family
Segregation
עוד תגיות
תוכן קשור
More details
DOI :
10.1093/molbev/msg173
Article number:
0
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
29610
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:48
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Scientific Publication
Recent duplication of the common carp (Cyprinus carpio L.) Genome as revealed by analyses of microsatellite loci
20
David, L., Department of Biological Sciences, Stanford University, Rehovot, Israel, Dept. of Field Crops and Genetics, Fac. Agric., Food/Environ. Qual. S., Hebrew University of Jerusalem, Rehovot, Israel
Blum, S., Dept. of Field Crops and Genetics, Fac. Agric., Food/Environ. Qual. S., Hebrew University of Jerusalem, Rehovot, Israel
Feldman, M.W., Department of Biological Sciences, Stanford University, Rehovot, Israel
Lavi, U., Institute of Horticulture, ARO-Volcani Center, Bet-Dagan, Israel
Hillel, J., Dept. of Field Crops and Genetics, Fac. Agric., Food/Environ. Qual. S., Hebrew University of Jerusalem, Rehovot, Israel
Recent duplication of the common carp (Cyprinus carpio L.) Genome as revealed by analyses of microsatellite loci
Genome duplications may have played a role in the early stages of vertebrate evolution, near the time of divergence of the lamprey lineage. Additional genome duplication, specifically in ray-finned fish, may have occurred before the divergence of the teleosts, The common carp (Cyprinus carpio) has been considered tetraploid because of its chromosome number (2n = 100) and its high DNA content, We studied variation using 59 microsatellite primer pairs to better understand the ploidy level of the common carp, Based on the number of PCR amplicons per individual, about 60% of these primer pairs are estimated to amplify duplicates, Segregation patterns in families suggested a partially duplicated genome structure and disomic inheritance, This could suggest that the common carp is tetraploid and that polyploidy occurred by hybridization (allotetraploidy), From sequences of microsatellite flanking regions, we estimated the difference per base between pairs of alleles and between pairs of paralogs. The distribution of differences between paralogs had two distinct modes suggesting one whole-genome duplication and a more recent wave of segmental duplications. The genome duplication was estimated to have occurred about 12 MYA, with the segmental duplications occurring between 2.3 and 6.8 MYA. At 12 MYA, this would be one of the most recent genome duplications among vertebrates. Phylogenetic analysis of several cyprinid species suggests an evolutionary model for this tetraploidization, with a role for polyploidization in speciation and diversification.
Scientific Publication
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