Characterization of 15 microsatellite loci and genetic analysis of Heterodera schachtii (Nematoda: Heteroderidae) in South Korea

Jiyeon Kim, Taeho Kim, Yu Cheol Lee, Jae Yong Chun, Elizabeth M.A. Kern, Jongwoo Jung, Joong Ki Park

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

Heterodera schachtii, the sugar beet cyst nematode, is a major pest of agricultural crops worldwide. We report the development of fifteen polymorphic microsatellite markers and assess the genetic diversity and structure of three populations following a recent invasion of a previously unaffected region. Populations had low levels of heterozygosity, likely indicative of population structure, history, and inbreeding. Genetic diversity analysis suggested that the current infestation in South Korea may have come either from a single source population of mixed ancestry, or from multiple sources, indicating that implementing adequate prevention measures is still an unmet challenge. Much more work is needed on this species to identify global patterns of spread, and the microsatellite loci we develop here should be useful in many regions for modeling range expansion, studying the evolution of resistance, and increasing the effectiveness of pest management strategies.

Original languageEnglish
Pages (from-to)97-104
Number of pages8
JournalBiochemical Systematics and Ecology
Volume64
DOIs
StatePublished - 1 Feb 2016

Keywords

  • Genetic diversity
  • Heterodera schachtii
  • Microsatellite markers
  • Simple sequence repeat (SSR)
  • South Korea
  • Sugar beet cyst nematode

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