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Genetic structure of farmer-managed varieties in clonally-propagated crops
The relative role of sexual reproduction and mutation in shaping the diversity of clonally propagated crops is largely unknown. We analyzed the genetic diversity of yam—a vegetatively-propagated crop—to gain insight into how these two factors shape its diversity in relation with farmers’ classificat...
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| Published in: | Genetica 2011-08, Vol.139 (8), p.1055-1064 |
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| Main Authors: | , , , , , , , |
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| cites | cdi_FETCH-LOGICAL-c426t-ced9d213c869c8d8030e741117584a8c44d593fb19910fdec4ff93cb4e6440153 |
| container_end_page | 1064 |
| container_issue | 8 |
| container_start_page | 1055 |
| container_title | Genetica |
| container_volume | 139 |
| creator | Scarcelli, N Tostain, S Vigouroux, Y Luong, V Baco, M. N Agbangla, C Daïnou, O Pham, J. L |
| description | The relative role of sexual reproduction and mutation in shaping the diversity of clonally propagated crops is largely unknown. We analyzed the genetic diversity of yam—a vegetatively-propagated crop—to gain insight into how these two factors shape its diversity in relation with farmers’ classifications. Using 15 microsatellite loci, we analyzed 485 samples of 10 different yam varieties. We identified 33 different genotypes organized in lineages supported by high bootstrap values. We computed the probability that these genotypes appeared by sexual reproduction or mutation within and between each lineage. This allowed us to interpret each lineage as a product of sexual reproduction that has evolved by mutation. Moreover, we clearly noted a similarity between the genetic structure and farmers’ classifications. Each variety could thus be interpreted as being the product of sexual reproduction having evolved by mutation. This highly structured diversity of farmer-managed varieties has consequences for the preservation of yam diversity. |
| doi_str_mv | 10.1007/s10709-011-9607-8 |
| format | article |
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N ; Agbangla, C ; Daïnou, O ; Pham, J. L</creator><creatorcontrib>Scarcelli, N ; Tostain, S ; Vigouroux, Y ; Luong, V ; Baco, M. N ; Agbangla, C ; Daïnou, O ; Pham, J. L</creatorcontrib><description>The relative role of sexual reproduction and mutation in shaping the diversity of clonally propagated crops is largely unknown. We analyzed the genetic diversity of yam—a vegetatively-propagated crop—to gain insight into how these two factors shape its diversity in relation with farmers’ classifications. Using 15 microsatellite loci, we analyzed 485 samples of 10 different yam varieties. We identified 33 different genotypes organized in lineages supported by high bootstrap values. We computed the probability that these genotypes appeared by sexual reproduction or mutation within and between each lineage. This allowed us to interpret each lineage as a product of sexual reproduction that has evolved by mutation. Moreover, we clearly noted a similarity between the genetic structure and farmers’ classifications. Each variety could thus be interpreted as being the product of sexual reproduction having evolved by mutation. 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N</creatorcontrib><creatorcontrib>Agbangla, C</creatorcontrib><creatorcontrib>Daïnou, O</creatorcontrib><creatorcontrib>Pham, J. L</creatorcontrib><title>Genetic structure of farmer-managed varieties in clonally-propagated crops</title><title>Genetica</title><addtitle>Genetica</addtitle><addtitle>Genetica</addtitle><description>The relative role of sexual reproduction and mutation in shaping the diversity of clonally propagated crops is largely unknown. We analyzed the genetic diversity of yam—a vegetatively-propagated crop—to gain insight into how these two factors shape its diversity in relation with farmers’ classifications. Using 15 microsatellite loci, we analyzed 485 samples of 10 different yam varieties. We identified 33 different genotypes organized in lineages supported by high bootstrap values. We computed the probability that these genotypes appeared by sexual reproduction or mutation within and between each lineage. 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This highly structured diversity of farmer-managed varieties has consequences for the preservation of yam diversity.</description><subject>Agriculture - methods</subject><subject>Animal Genetics and Genomics</subject><subject>Biomedical and Life Sciences</subject><subject>Classification</subject><subject>Cloning, Organism</subject><subject>Crops</subject><subject>Crops, Agricultural - classification</subject><subject>Crops, Agricultural - genetics</subject><subject>Crops, Agricultural - physiology</subject><subject>Dioscorea - classification</subject><subject>Dioscorea - genetics</subject><subject>Dioscorea - physiology</subject><subject>Evolutionary Biology</subject><subject>Farm structure</subject><subject>Farmers</subject><subject>Genetic diversity</subject><subject>Genetic structure</subject><subject>genetic variation</subject><subject>Genotype</subject><subject>Genotypes</subject><subject>Human Genetics</subject><subject>Life Sciences</subject><subject>Microbial Genetics and Genomics</subject><subject>microsatellite repeats</subject><subject>Microsatellite Repeats - genetics</subject><subject>Mutation</subject><subject>Phylogeny</subject><subject>Plant Genetics and Genomics</subject><subject>Reproduction</subject><subject>sexual reproduction</subject><subject>yams</subject><issn>0016-6707</issn><issn>1573-6857</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNqFkU1rFTEUhoMo9rb6A7qxg5uuoudMMvlYStG2UnChXYfczMllynzcJjNC_725TGvBRV0lkOc9eQ8PY6cInxBAf84IGiwHRG4VaG5esQ02WnBlGv2abQBQcaVBH7HjnO8AwGpl37KjGo01INWGfb-kkeYuVHlOS5iXRNUUq-jTQIkPfvQ7aqvfPnUFolx1YxX6afR9_8D3adr7nZ8LEMo1v2Nvou8zvX88T9jtt6-_Lq74zY_L64svNzzIWs08UGvbGkUwygbTGhBAWiKiboz0JkjZNlbELVqLEFsKMkYrwlaSkhKwESfsfJ1bCtwvlGc3dDlQ3_uRpiU7C7VQ2gjxX9JYVZcmQhXy4z_k3bSksucBanQtlbIFwhUq6-acKLp96gafHhyCOwhxqxBXhLiDEGdK5sPj4GU7UPs38WSgAPUK5PI07ig9__zS1LM1FP3k_C512d3-rAFlUSz1oesf-WOeAw</recordid><startdate>20110801</startdate><enddate>20110801</enddate><creator>Scarcelli, N</creator><creator>Tostain, S</creator><creator>Vigouroux, Y</creator><creator>Luong, V</creator><creator>Baco, M. 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| ispartof | Genetica, 2011-08, Vol.139 (8), p.1055-1064 |
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| language | eng |
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| subjects | Agriculture - methods Animal Genetics and Genomics Biomedical and Life Sciences Classification Cloning, Organism Crops Crops, Agricultural - classification Crops, Agricultural - genetics Crops, Agricultural - physiology Dioscorea - classification Dioscorea - genetics Dioscorea - physiology Evolutionary Biology Farm structure Farmers Genetic diversity Genetic structure genetic variation Genotype Genotypes Human Genetics Life Sciences Microbial Genetics and Genomics microsatellite repeats Microsatellite Repeats - genetics Mutation Phylogeny Plant Genetics and Genomics Reproduction sexual reproduction yams |
| title | Genetic structure of farmer-managed varieties in clonally-propagated crops |
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