Microsatellite variation in maize landraces from Northwestern Argentina: Genetic diversity, population structure and racial affiliations
The highland region or Northwestern Argentina (NWA) is one of the southernmost areas of native maize cultivation and constitutes an expansion of the peruvian Andes sphere of influence. To examine the genetic diversity and racial affiliations of the landraces cultivated in this area, 18 microsatellit...
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2009
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paper:paper_00405752_v119_n6_p1053_Lia2023-06-08T15:04:32Z Microsatellite variation in maize landraces from Northwestern Argentina: Genetic diversity, population structure and racial affiliations Lia, Verónica Viviana Poggio, Lidia Confalonieri, Viviana Andrea Argentina Bayesian Analysis Data sets Gene diversity Gene pools Genetic differentiation Genetic diversity Genetic studies Germplasms Landraces Micro satellite Microsatellite markers Population structures Sphere of influences Traditional materials Lakes DNA microsatellite DNA plant DNA allele Argentina article Bayes theorem classification crop gene frequency gene pool genetic marker genetic variability genetics genotype geography isolation and purification maize molecular evolution plant chromosome statistical model Alleles Argentina Bayes Theorem Chromosomes, Plant Crops, Agricultural DNA DNA, Plant Evolution, Molecular Gene Frequency Gene Pool Genetic Markers Genetic Variation Genotype Geography Microsatellite Repeats Models, Statistical Zea mays Zea mays The highland region or Northwestern Argentina (NWA) is one of the southernmost areas of native maize cultivation and constitutes an expansion of the peruvian Andes sphere of influence. To examine the genetic diversity and racial affiliations of the landraces cultivated in this area, 18 microsatellite markers were used to characterize 147 individuals from 6 maize races representative of traditional materials. For the whole data set, a total of 184 alleles were found, with an average of 10.2 alleles per locus. The average gene diversity was 0.571. The observed patterns of genetic differentiation suggest that historical association is probably the main factor in shaping population structure for the landraces studied here. In agreement with morphological and cytogenetic data, Bayesian analysis of NWA landraces revealed the occurrence of three main gene pools. Assessment of racial affiliations using a combined dataset including previous data on American landraces showed a clear relationship between one of these gene pools and typical Andean races, whereas the remaining two gene pools exhibited a closer association to Caribbean accessions and native germplasm from the United States, respectively. These results highlight the importance of integrating regional genetic studies if a deeper understanding of maize diversification and dispersal is to be achieved. © 2009 Springer-Verlag. Fil:Lia, V.V. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Poggio, L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Confalonieri, V.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2009 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00405752_v119_n6_p1053_Lia http://hdl.handle.net/20.500.12110/paper_00405752_v119_n6_p1053_Lia |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Argentina Bayesian Analysis Data sets Gene diversity Gene pools Genetic differentiation Genetic diversity Genetic studies Germplasms Landraces Micro satellite Microsatellite markers Population structures Sphere of influences Traditional materials Lakes DNA microsatellite DNA plant DNA allele Argentina article Bayes theorem classification crop gene frequency gene pool genetic marker genetic variability genetics genotype geography isolation and purification maize molecular evolution plant chromosome statistical model Alleles Argentina Bayes Theorem Chromosomes, Plant Crops, Agricultural DNA DNA, Plant Evolution, Molecular Gene Frequency Gene Pool Genetic Markers Genetic Variation Genotype Geography Microsatellite Repeats Models, Statistical Zea mays Zea mays |
| spellingShingle |
Argentina Bayesian Analysis Data sets Gene diversity Gene pools Genetic differentiation Genetic diversity Genetic studies Germplasms Landraces Micro satellite Microsatellite markers Population structures Sphere of influences Traditional materials Lakes DNA microsatellite DNA plant DNA allele Argentina article Bayes theorem classification crop gene frequency gene pool genetic marker genetic variability genetics genotype geography isolation and purification maize molecular evolution plant chromosome statistical model Alleles Argentina Bayes Theorem Chromosomes, Plant Crops, Agricultural DNA DNA, Plant Evolution, Molecular Gene Frequency Gene Pool Genetic Markers Genetic Variation Genotype Geography Microsatellite Repeats Models, Statistical Zea mays Zea mays Lia, Verónica Viviana Poggio, Lidia Confalonieri, Viviana Andrea Microsatellite variation in maize landraces from Northwestern Argentina: Genetic diversity, population structure and racial affiliations |
| topic_facet |
Argentina Bayesian Analysis Data sets Gene diversity Gene pools Genetic differentiation Genetic diversity Genetic studies Germplasms Landraces Micro satellite Microsatellite markers Population structures Sphere of influences Traditional materials Lakes DNA microsatellite DNA plant DNA allele Argentina article Bayes theorem classification crop gene frequency gene pool genetic marker genetic variability genetics genotype geography isolation and purification maize molecular evolution plant chromosome statistical model Alleles Argentina Bayes Theorem Chromosomes, Plant Crops, Agricultural DNA DNA, Plant Evolution, Molecular Gene Frequency Gene Pool Genetic Markers Genetic Variation Genotype Geography Microsatellite Repeats Models, Statistical Zea mays Zea mays |
| description |
The highland region or Northwestern Argentina (NWA) is one of the southernmost areas of native maize cultivation and constitutes an expansion of the peruvian Andes sphere of influence. To examine the genetic diversity and racial affiliations of the landraces cultivated in this area, 18 microsatellite markers were used to characterize 147 individuals from 6 maize races representative of traditional materials. For the whole data set, a total of 184 alleles were found, with an average of 10.2 alleles per locus. The average gene diversity was 0.571. The observed patterns of genetic differentiation suggest that historical association is probably the main factor in shaping population structure for the landraces studied here. In agreement with morphological and cytogenetic data, Bayesian analysis of NWA landraces revealed the occurrence of three main gene pools. Assessment of racial affiliations using a combined dataset including previous data on American landraces showed a clear relationship between one of these gene pools and typical Andean races, whereas the remaining two gene pools exhibited a closer association to Caribbean accessions and native germplasm from the United States, respectively. These results highlight the importance of integrating regional genetic studies if a deeper understanding of maize diversification and dispersal is to be achieved. © 2009 Springer-Verlag. |
| author |
Lia, Verónica Viviana Poggio, Lidia Confalonieri, Viviana Andrea |
| author_facet |
Lia, Verónica Viviana Poggio, Lidia Confalonieri, Viviana Andrea |
| author_sort |
Lia, Verónica Viviana |
| title |
Microsatellite variation in maize landraces from Northwestern Argentina: Genetic diversity, population structure and racial affiliations |
| title_short |
Microsatellite variation in maize landraces from Northwestern Argentina: Genetic diversity, population structure and racial affiliations |
| title_full |
Microsatellite variation in maize landraces from Northwestern Argentina: Genetic diversity, population structure and racial affiliations |
| title_fullStr |
Microsatellite variation in maize landraces from Northwestern Argentina: Genetic diversity, population structure and racial affiliations |
| title_full_unstemmed |
Microsatellite variation in maize landraces from Northwestern Argentina: Genetic diversity, population structure and racial affiliations |
| title_sort |
microsatellite variation in maize landraces from northwestern argentina: genetic diversity, population structure and racial affiliations |
| publishDate |
2009 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00405752_v119_n6_p1053_Lia http://hdl.handle.net/20.500.12110/paper_00405752_v119_n6_p1053_Lia |
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| _version_ |
1768546107531460608 |