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Development of a Reliable Early Selection System for Resistance to Alternaria Blotch Based on Complex Segregation Analysis and Linkage Analysis in Apple

Research Project

Project/Area Number 25450052
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Horticultural science
Research InstitutionNational Agriculture and Food Research Organization

Principal Investigator

ABE Kazuyuki  国立研究開発法人農業・食品産業技術総合研究機構, 果樹茶業研究部門リンゴ研究領域, ユニット長 (70370559)

Co-Investigator(Kenkyū-buntansha) MORIYA Shigeki  国立研究開発法人農業・食品産業技術総合研究機構, 果樹茶業研究部門リンゴ研究領域, 主任研究員 (90391474)
SHIMIZU Taku  国立研究開発法人農業・食品産業技術総合研究機構, 果樹茶業研究部門リンゴ研究領域, 研究員 (70759133)
Co-Investigator(Renkei-kenkyūsha) IWANAMI Hiroshi  国立研究開発法人農業・食品産業技術総合研究機構, 果樹茶業研究部門リンゴ研究領域, ユニット長 (40355425)
Project Period (FY) 2013-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords果樹 / 品種 / 斑点落葉病 / 罹病性 / 病害抵抗性
Outline of Final Research Achievements

Alternaria blotch, caused by Alternaria alternata apple pathotype, is an economically important disease of apple. The aim of this study was to clarify a mode of inheritance on the resistance/susceptibility of apples to Alternaria blotch, and to develop DNA markers which allowed one a reliable assessment of apples for the degree of resistance to Alternaria blotch. Results of complex segregation analysis on the data sets of inoculation test on the resistance levels of apple seedlings suggested that moderately susceptibility (MS) to Alternaria blotch was controlled by a single dominant gene, Alt-2. Quantitative trait locus (QTL) analysis for the MS using phenotypic data obtained by the inoculation tests identified a significant QTL on the upper region of linkage group 11 on the genetic map of‘Golden Delicious’. The genotypes of DR033892, a DNA marker located to a neighbor of Alt, corresponded to the phenotype on the resistance levels of apple cultivars.

Report

(4 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Research-status Report
  • 2013 Research-status Report
  • Research Products

    (2 results)

All 2015 2014

All Presentation (2 results)

  • [Presentation] リンゴ斑点落葉病の罹病性程度に及ぼすAlt-1とAlt-2の遺伝子型効果2015

    • Author(s)
      阿部和幸、森谷茂樹、岡田和馬、清水拓
    • Organizer
      園芸学会
    • Place of Presentation
      徳島大学
    • Year and Date
      2015-09-26
    • Related Report
      2015 Annual Research Report
  • [Presentation] リンゴ斑点落葉病に対する「ふじ」の抵抗性程度と遺伝2014

    • Author(s)
      阿部和幸、森谷茂樹、岡田和馬
    • Organizer
      園芸学会東北支部(園芸学会東北支部平成26年度大会)
    • Place of Presentation
      青森県弘前市(弘前市教育センター)
    • Year and Date
      2014-08-27 – 2014-08-28
    • Related Report
      2014 Research-status Report

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Published: 2014-07-25   Modified: 2019-07-29  

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