Genetic Diversity and Characterization of a Core Collection of Malus Germplasm Using Simple Sequence Repeats (SSRs)

Sarah M. Potts, Yuepeng Han, M. Awais Khan, Mosbah M. Kushad, A. Lane Rayburn, Schuyler S. Korban

Research output: Contribution to journalArticlepeer-review

Abstract

Simple sequence repeats (SSRs) were used to assess genetic diversity and study genetic relatedness in a large collection of Malus germplasm. A total of 164 accessions from the Malus core collection, maintained at the University of Illinois, were genotyped using apple SSR markers. Each of the accessions was genotyped using a single robust SSR marker from each of the 17 different linkage groups in Malus. Data were subjected to principal component analysis, and a dendrogram was constructed to establish genetic relatedness. As expected, this diverse core collection showed high allelic diversity; moreover, this allelic diversity was higher than that previously reported. Cluster analysis revealed the presence of four distinct clusters of accessions in this collection.

Original languageEnglish (US)
Pages (from-to)827-837
Number of pages11
JournalPlant Molecular Biology Reporter
Volume30
Issue number4
DOIs
StatePublished - Aug 1 2012

Keywords

  • Apple
  • Genetic diversity
  • Genetic relatedness
  • Germplasm characterization
  • Microsatellite markers

ASJC Scopus subject areas

  • Molecular Biology
  • Plant Science

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