Genetic diversity of potato landraces from northwestern Argentina assessed with simple sequence repeats (SSRs) |
| |
Authors: | Verónica Nilda Ispizúa Irma Rosana Guma Sergio Feingold Andrea Martina Clausen |
| |
Institution: | (1) Facultad de Ciencias Agrarias, Universidad Nacional de Mar del Plata (UNMdP), Balcarce, Buenos Aires, 7620, Argentina;(2) Estación Experimental Agropecuaria Balcarce, Instituto Nacional de Tecnología Agropecuaria (INTA), Balcarce, Buenos Aires, Argentina |
| |
Abstract: | 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. |
| |
Keywords: | Andigenum group Genetic diversity Microsatellites SSRs Andean potato landraces Local varieties Solanum tuberosum |
本文献已被 SpringerLink 等数据库收录! |