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

TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik
Ashlee AnciroSeonghee Lee

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 whic...Continue Reading

References

Feb 2, 2002·Nature Reviews. Genetics·Rebecca W Doerge
Jul 10, 2008·Plant Physiology·Stephen P Moose, Rita H Mumm
Jul 17, 2012·Bioinformatics·Alexander E LipkaZhiwu Zhang
Feb 26, 2014·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·M C A M BinkW E van de Weg
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Feb 26, 2016·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Jack A RoachVance M Whitaker

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Citations

Aug 20, 2019·G3 : Genes - Genomes - Genetics·Christopher R BarbeyKevin M Folta
Jul 22, 2020·Plant Disease·Madeline DowlingGuido Schnabel
Dec 20, 2018·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Natalia SalinasVance M Whitaker
Mar 21, 2020·Horticulture Research·Vance M WhitakerSujeet Verma
Mar 16, 2021·Horticulture Research·Vance M WhitakerSujeet Verma

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Datasets Mentioned

BETA
AX-89906238

Methods Mentioned

BETA
genotyping
PCR

Software Mentioned

Genome Association and Prediction Integrated Tool ( GAPIT )
JOINMAP
R
Axiom
Melt
Primerquest
GAPIT
ASReml
[UNK]

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