Genetic diversity of potato landraces from northwestern Argentina assessed with simple sequence repeats (SSRs)
| Autor: | Irma Rosana Guma, Verónica N. Ispizúa, Sergio Enrique Feingold, Andrea M. Clausen |
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| Rok vydání: | 2007 |
| Předmět: |
Genetic diversity
business.industry food and beverages Plant Science Biology Solanum tuberosum Analysis of molecular variance Accession Biotechnology chemistry.chemical_compound Agronomy chemistry Molecular marker Genetic variation Genotype Genetics Microsatellite business Agronomy and Crop Science Ecology Evolution Behavior and Systematics |
| Zdroj: | Genetic Resources and Crop Evolution. 54:1833-1848 |
| ISSN: | 1573-5109 0925-9864 |
| DOI: | 10.1007/s10722-007-9207-8 |
| Popis: | Andean potato varieties are cultivated in the northwest of Argentina and constitute the most important staple food for the local farmers. The genetic diversity of 155 accessions conserved at the Genebank of Balcarce (INTA) was tested using four microsatellites. Three commercial potato varieties of Tuberosum group and one accession of Curtilobum group were used as outgroups. The presence of bands was scored for each microsatellite and for each accession and the data were analysed by principal coordinate analysis. The polymorphism information content was obtained for each molecular marker from banding patterns. Analysis of molecular variance was carried out with a variable number of accessions for each landrace, from different departments and sites within departments. More than one genotype was detected in the majority of the potato landraces. Some accessions within each landrace did not differentiate. AMOVA revealed that most of the genetic variation occurred among sites within departments and among local varieties. These findings are discussed considering the agricultural practices carried out in the Andean farming system. |
| Databáze: | OpenAIRE |
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