Translator Disclaimer
23 February 2017 Identification of novel quantitative trait loci associated with tolerance to phytophthora root rot in the soybean cultivar Hefeng 25 using two recombinant inbred line populations
Author Affiliations +
Abstract

The objective of this study was to identify quantitative trait loci (QTL) related to phytophthora root rot (PRR) tolerance and to analyze their genetic effects through two recombinant inbred line populations between tolerance cultivar Hefeng 25 and two susceptible cultivars (Dongnong 93046 for the HD population, including 140 F5:9 lines, and Maple Arrow for the HM population, including 149 F5:10 lines) based on greenhouse evaluation of PRR. A total of five and seven QTL underlying tolerance to PRR were identified in the HD and HM populations, respectively. Phenotypic variation explained by the QTL ranged from 1.27% to 10.41% in the HD population and from 1.68% to 12.65% in the HM population. Of these QTL, three (qHDPRR-4 in the HD population and qHMPRR-1 and qHMPRR-3 in the HM population) were identified in similar genomic regions reported previously. Nine new QTL contributed by Hefeng 25 were found in the present study (four in the HD population and five in the HM population). Three QTL in the HD and five QTL in the HM populations had higher additive effects that were likely to be stable across multiple environments or genetic backgrounds. Moreover, four and five epistatic pairwise QTL were found to underlie tolerance to PRR in the HD and HM populations, respectively.

Copyright remains with the author(s) or their institution(s). Permission for reuse (free in most cases) can be obtained from RightsLink.
Y. Han, Y. Zhang, D. Wu, X. Zhao, W. Teng, D. Li, and W. Li "Identification of novel quantitative trait loci associated with tolerance to phytophthora root rot in the soybean cultivar Hefeng 25 using two recombinant inbred line populations," Canadian Journal of Plant Science 97(5), (23 February 2017). https://doi.org/10.1139/cjps-2016-0356
Received: 7 November 2016; Accepted: 1 February 2017; Published: 23 February 2017
JOURNAL ARTICLE
8 PAGES


SHARE
ARTICLE IMPACT
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top