A high-density genetic linkage map of bronze loquat based on SSR and RAPD markers

Shinji Fukuda, Keiichiro Ishimoto, Shusei Sato, Shingo Terakami, Naofumi Hiehata, Toshiya Yamamoto

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

We constructed a high-density genetic linkage map of bronze loquat (Eriobotrya deflexa) by using a three-way cross of loquat (Eriobotrya japonica) × (loquat × bronze loquat) and simple sequence repeat (SSR) and random amplified polymorphic DNA (RAPD) markers. The positions of the SSR loci used in this study were previously identified on reference maps of pears (Pyrus spp.) and apples (Malus spp.). The map of bronze loquat (‘Taiwan loquat No. 1’) consisted of 308 loci including 167 SSRs (8 loquat, 57 pear, and 102 apple SSRs), 140 RAPDs, and the loquat canker resistance gene Pse-a on 19 linkage groups covering a genetic distance of 1036 cM. Almost all loquat linkage groups were aligned to the pear consensus map by using at least two pear or apple SSRs, suggesting that positions and linkages of SSR loci were well conserved between loquat and pear and between loquat and apple. The constructed map may be used to determine the location of genes and quantitative trait loci of interest and to analyze genome synteny in the tribe Pyreae, subfamily Spiraeoideae of the family Rosaceae.

Original languageEnglish
Article number80
JournalTree Genetics and Genomes
Volume12
Issue number4
DOIs
Publication statusPublished - 2016 Aug 1
Externally publishedYes

Keywords

  • Co-linearity
  • Eriobotrya deflexa
  • Eriobotrya japonica
  • Genetic map
  • SSR marker

ASJC Scopus subject areas

  • Forestry
  • Molecular Biology
  • Genetics
  • Horticulture

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