Identification of new resistance QTL regions in loquat cultivar ‘Champagne’ againstPseudomonas syringaepv.eriobotryaegroup C

Author:

Koga Shogo,Kawaguchi Ryusei,Tanaka Tsunami,Moriya Shigeki,Hiehata Naofumi,Kabashima Koji,Nagano Atushi J.,Nagano YukioORCID,Fukuda ShinjiORCID

Abstract

AbstractLoquat canker, caused byPseudomonas syringaepv.eriobotryae, is a bacterial disease that infects loquat (Eriobotrya japonica) and has been reported in several countries. Three pathotypes, A, B, and C, have been reported in Japan. The loquat cultivar ‘Champagne’ is resistant to the loquat canker group C and possesses a qualitative trait governed by a recessive homozygouspse-cgene located on Linkage Group 3 (LG3), and quantitative traits located at unidentified loci. In this study, we identified novel quantitative trait loci (QTL) regions for resistance to group C in this cultivar. A seedling population with ‘Tanaka’ (Pse-c/Pse-c) crossed with ‘Champagne’ (pse-c/pse-c) was tested. The genetic map of ‘Champagne’ includes a total of 1,016 SNP markers mapped across 17 LGs, covering a total distance of 1,301 cM and an average marker density of 1.4 cM/locus. In addition to minor potential QTLs, the major QTL for resistance to loquat canker group C was detected in the upper region of LG14, with the QTL contributing 6.9% to the disease index. The results of this study open new possibilities for resistance breeding against this disease.Highlights.A total of 1,016 SNP markers were mapped on a linkage map consisting of 17 linkage groups with a total distance of 1,301 cM.QTL analysis revealed a novel resistance QTL region in ‘Champagne’ against loquat canker group C in the upper part of the LG14.The identified QTLs in this study provide new possibilities for resistance breeding in loquat.

Publisher

Cold Spring Harbor Laboratory

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3