FaRCg1: a quantitative trait locus conferring resistance to Colletotrichum crown rot caused by Colletotrichum gloeosporioides in octoploid strawberry

Publication Overview
TitleFaRCg1: a quantitative trait locus conferring resistance to Colletotrichum crown rot caused by Colletotrichum gloeosporioides in octoploid strawberry
AuthorsAnciro A, Mangandi J, Verma S, Peres N, Whitaker VM, Lee S
TypeJournal Article
Journal NameTheoretical and Applied Genetics
Year2018
CitationAnciro A, Mangandi J, Verma S, Peres N, Whitaker VM, Lee S. FaRCg1: a quantitative trait locus conferring resistance to Colletotrichum crown rot caused by Colletotrichum gloeosporioides in octoploid strawberry. Theoretical and Applied Genetics. 2018 131(10):2167-2177.

Abstract

Colletotrichum crown rot (CCR) is an important disease of strawberry (Fragaria ×ananassa) throughout the Southeastern US and in subtropical climates around the world, where hot and humid conditions facilitate rapid disease development. Yet no resistance loci have been described to date, as genetic studies have been historically difficult in allo-octoploid (2n = 8x = 56) strawberry. In the present study, we investigate the genetic architecture of resistance to CCR. Four population sets from the University of Florida were inoculated in four different seasons from 2013-2014 to 2016-2017. Two large, multiparental discovery population sets were used for QTL discovery, and two validation sets of cultivars and advanced selections representing the parent pool of the breeding program were also assessed. Subgenome-specific single-nucleotide polymorphism (SNP) markers were mapped, and FlexQTL™ software was utilized to perform a Bayesian, pedigree-based QTL analysis. A quantitative trait locus on linkage group 6B, which we name FaRCg1, accounts for most of the genetic variation for resistance in the discovery sets (26.8-29.8% in 2013-2014 and 17% in 2015-2016). High-throughput marker assays were developed for the most significant SNPs which correlated with the mode of the QTL region. The discovery and characterization of the FaRCg1 locus and the molecular tools developed from it will be utilized to achieve increased genetic gains for resistance.

Stocks
This publication contains information about 3 stocks:
Stock NameUniquenameType
FL_08-10_x_12.115-10-F1FL_08-10_x_12.115-10-F1population
FL_08-10FL_08-10breeding_research_material
12.115-1012.115-10breeding_research_material
Projects
This publication contains information about 1 projects:
Project NameDescription
Strawberry-Crown_Rot-Anciro-2018
Features
This publication contains information about 1 features:
Feature NameUniquenameType
resistance to Gloeosporium and Colletotrichum speciesqRGC.FL_08-10_x_12.115-10-LG6BQTL
Featuremaps
This publication contains information about 1 maps:
Map Name
Strawberry-FL_08-10_x_12.115-10-F1
Properties
Additional details for this publication include:
Property NameValue
Published Location
Publication TypeJournal Article
Publication ModelPrint-Electronic
Publication Date2018 Jul 21
Language Abbreng
LanguageEnglish
Journal CountryGermany
Journal AbbreviationTheor. Appl. Genet.
ISSN1432-2242
Elocation10.1007/s00122-018-3145-z
eISSN1432-2242
DOI10.1007/s00122-018-3145-z
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DatabaseAccession
PMID: PubMedPMID:30032317