Resistance traits and AFLP characterization of diploid primitive tuber-bearing potatoes

Riccardo Aversano, Maria Raffaella Ercolano, Luigi Frusciante, Luigi Monti, James M. Bradeen, Gennaro Cristinzio, Astolfo Zoina, Nicola Greco, Salvatore Vitale, Domenico Carputo

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

Worldwide, a variety of pathogens negatively affect potato production, resulting in an estimated 22% annual yield reduction. Wild Solanum species represent a unique gene pool where all the traits necessary to improve the cultivated potato can be found. Therefore, breeding efforts for improved disease resistance and research aimed at characterizing wild germplasm have been extensively made. In this paper, sources of resistance to Phytophthora infestans, Erwinia carotovora subsp. carotovora, Fusarium solani and Globodera spp. have been investigated in several clones of two Solanum species originating from Central Mexico (S. bulbocastanum and S. cardiophyllum). Interestingly, we found sources of combined resistance to late blight and bacterial soft rot. This is an important finding considering that the development of resistant potato varieties has been hindered by the scarcity of resistant germplasm. In addition, we explored molecular differences within and between the two species generating AFLP fingerprints. By means of six primer pair combinations, we found 13 and 16 putative species-specific AFLP markers for S. bulbocastanum and S. cardiophyllum, respectively, and a bounty of markers useful for mapping, MAS, and cloning purposes. The phenotypic and molecular information associated to S. bulbocastanum and S. cardiophyllum for designing strategies of assisted selection are discussed.

Original languageEnglish (US)
Pages (from-to)1797-1806
Number of pages10
JournalGenetic Resources and Crop Evolution
Volume54
Issue number8
DOIs
StatePublished - Dec 1 2007

Keywords

  • Germplasm
  • Molecular markers
  • S. cardiophyllum
  • Solanum bulbocastanum

Fingerprint Dive into the research topics of 'Resistance traits and AFLP characterization of diploid primitive tuber-bearing potatoes'. Together they form a unique fingerprint.

Cite this