title: Identification of quantitative trait loci underlying resistance to southern root-knot and reniform nematodes in soybean accession PI 567516C.
abstract: Soybean cyst nematode (SCN,Heterodera glycineIchinohe), southern root-knot nematode [SRKN,Meloidogyne incognita(Kofoid and White) Chitwood] and reniform nematode (RN,Rotylenchulus reniformisLinford and Oliveira) are three important plant-parasitic pests in soybean. Previous study showed that plant introduction (PI) 567516C harbored novel quantitative trait loci (QTL) conferring SCN resistance to soybean. However, QTL underlying resistance to SRKN and RN in PI 567516C remain unknown. The objectives of this study were to identify QTL for resistance to SRKN and RN in PI 567516C. Two hundred and forty-seven F6:9recombinant inbred lines, derived from a cross between cultivar Magellan and PI 567516C, were evaluated for resistance to SRKN and RN. Two hundred and thirty-eight simple sequence repeats and 687 single nucleotide polymorphism markers were used to construct a genetic linkage map. Three significant QTL associated with resistance to SRKN were mapped on chromosomes (Chrs.) 10, 13 and 17. Two significant QTL associated with resistance to RN were detected on Chrs. 11 and 18. Whole-genome resequencing revealed that there might be Peking-typeRhg1in PI 567516C. Our study provides useful information to employ PI 567516C in soybean breeding in order to develop new cultivars with resistance to multiple nematodes.
authors.affiliation: Division of Plant Sciences and National Center for Soybean Biotechnology (NCSB), University of Missouri, Columbia, MO 65211 USA ; Key Laboratory of Oil Crop Biology of the Ministry of Agriculture, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan, 430062 Hubei China.
authors.forename: Yongqing
authors.initials: Y
authors.lastname: Jiao
authors.affiliation: Division of Plant Sciences and National Center for Soybean Biotechnology (NCSB), University of Missouri, Columbia, MO 65211 USA.
authors.forename: Tri D
authors.initials: TD
authors.lastname: Vuong
authors.affiliation: Computer Science Department and Christopher S Bond Life Sciences Center, Informatics Institute, University of Missouri, Columbia, MO 65211 USA.
authors.forename: Yang
authors.initials: Y
authors.lastname: Liu
authors.affiliation: Center for Applied Genetic Technologies and Department of Crop and Soil Sciences, University of Georgia, Athens, GA 30602 USA.
authors.forename: Zenglu
authors.initials: Z
authors.lastname: Li
authors.affiliation: Department of Plant Pathology, University of Georgia, Athens, GA 30602 USA.
authors.forename: Jim
authors.initials: J
authors.lastname: Noe
authors.affiliation: Department of Plant Pathology, University of Arkansas, Fayetteville, AR 73701 USA.
authors.forename: Robert T
authors.initials: RT
authors.lastname: Robbins
authors.affiliation: Computer Science Department and Christopher S Bond Life Sciences Center, Informatics Institute, University of Missouri, Columbia, MO 65211 USA.
authors.forename: Trupti
authors.initials: T
authors.lastname: Joshi
authors.affiliation: Computer Science Department and Christopher S Bond Life Sciences Center, Informatics Institute, University of Missouri, Columbia, MO 65211 USA.
authors.forename: Dong
authors.initials: D
authors.lastname: Xu
authors.affiliation: Division of Plant Sciences and National Center for Soybean Biotechnology (NCSB), University of Missouri, Delta Center, P.O. Box 160, Portageville, MO 63873 USA.
authors.forename: J Grover
authors.initials: JG
authors.lastname: Shannon
authors.affiliation: Division of Plant Sciences and National Center for Soybean Biotechnology (NCSB), University of Missouri, Columbia, MO 65211 USA.
authors.forename: Henry T
authors.initials: HT
authors.lastname: Nguyen
keywords: PI 567516C; QTL; Reniform nematode; Southern root-knot nematode; Soybean