Identification and validation of a quantitative trait locus associated with wheat yellow mosaic virus pathotype I resistance in a Japanese wheat variety. Issue 4 (2nd June 2015)

• Record Type: Journal Article
• Authors: Kojima, Hisayo; Nishio, Zenta; Kobayashi, Fuminori; Saito, Mika; Sasaya, Takahide; Kiribuchi‐Otobe, Chikako; Seki, Masako; Oda, Shunsuke; Nakamura, Toshiki; Ordon, F.
• Is Part Of: Plant breeding. Volume 134:Issue 4(2015)
• Page Start: 373
• Page End: 378
• Publication Date: 2015-06-02
• Subjects: Plant breeding -- Periodicals; 631.52
• DOI: 10.1111/pbr.12279
• Languages: English
• ISSNs: 0179-9541

Abstract

<abstract abstract-type="main" id="pbr12279-abs-0001"> <title>Abstract</title> <p>Yellow mosaic disease, caused by wheat yellow mosaic virus (WYMV), is one of the most serious diseases of winter wheat (<italic>Triticum aestivum</italic> L.) in Japan. The three pathotypes of WYMV are distributed in different geographical areas: pathotype I is found mainly in western and central Japan (Kanto), pathotype II in northern Japan (Tohoku and Hokkaido) and pathotype III on the southern island of Japan (Kyushu). A total of 246 doubled‐haploid (DH) lines, derived from a cross between 'Yumechikara' (resistant) and 'Kitahonami' (susceptible), were evaluated for 2 years for their resistance to WYMV pathotype I. A single major quantitative trait locus, <italic>Q.Ymym</italic>, mapping to chromosome 2D was associated with resistance to pathotype I in 'Yumechikara'. This is the first time a QTL responsible for pathotype I resistance has been identified. Fine mapping of <italic>Q.Ymym</italic> indicated that it was on a tight linkage block originating from 'Yumechikara', and the markers associated with this block will accelerate the development of varieties resistant to WYMV pathotype I.</p> </abstract>