Journal
AMERICAN JOURNAL OF POTATO RESEARCH
Volume 95, Issue 3, Pages 286-300Publisher
SPRINGER
DOI: 10.1007/s12230-018-9630-8
Keywords
Andean potato; SSR; Population structure; Genetic diversity; Nutritional&industrial quality; CDF
Categories
Funding
- Desarrollo de sistemas alternativos de generacion y utilizacion de variabilidad genetica y su aplicacion al mejoramiento de los cultivos [Alternative system developing of generation and utilization of genetic variation, and its application on cultivars b [PNBIO1131024]
- Estrategias para la Diferenciacion de Alimentos y el Desarrollo de Nuevos Productos Alimentarios [Strategies for food differentiation and development of new food products] INTA [PNAIyAV 1130043]
- Prospeccion y caracterizacion funcional de genes de interes biotecnologico' [Prospection and functional characterization of genes with biotechnological interest] INTA [PNBIO1131023]
- Genomica aplicada a la caracterizacion de la diversidad genetica [Applied genomics to genetic diversity characterization] INTA [PNBIO1131042]
- FONCYT, MINCyT ARGENTINA [PICT-2010-2037]
- MINCyT-CONCyTEC [PE/09/02]
- INTA [AETA 282811, AERG-231221]
- CONICET doctoral fellowships
- CONICET post-doctoral fellowship
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Andean Potato is a major crop for farmers in the Andes and represents an important gene pool for potato improvement. We present the population structure and genetic diversity of 88 Andigena accessions collected in Northwestern Argentina based on functional markers (25 SSR) distributed along 12 chromosomes. Polymorphic information content ranged from 0.40 to 0.87. A Bayesian approach, a Principal Coordinate Analysis and a Cluster Analysis revealed the presence of: I) a major group containing most of the Andean accessions and II) a smaller group including the out-group cv. Spunta and the sequenced genotype DM. Several group specific alleles were detected. AMOVA showed that 81% of the variability was within each group. Eleven of the SSRs analyzed are linked or within genes reported to regulate traits of nutritional and industrial interest. Additionally, the allelic variant of a photoperiod dependent tuberization regulator gene, StCDF1.2, was exclusively detected in accessions clustered in group II.
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