QTL discovery for resistance to black spot and cercospora leaf spot, and defoliation in two interconnected F1 bi-parental tetraploid garden rose populations

Publication Overview
TitleQTL discovery for resistance to black spot and cercospora leaf spot, and defoliation in two interconnected F1 bi-parental tetraploid garden rose populations
AuthorsLau, J., Gill, H., Taniguti, C. H., Young, E. L., Klein, P. E., Byrne, D. H., & Riera-Lizarazu, O.
TypeJournal Article
Journal NameFrontiers in Plant Science
Issue14
Year2023
CitationLau, J., Gill, H., Taniguti, C. H., Young, E. L., Klein, P. E., Byrne, D. H., & Riera-Lizarazu, O. (2023). QTL discovery for resistance to black spot and cercospora leaf spot, and defoliation in two interconnected F1 bi-parental tetraploid garden rose populations. Frontiers in Plant Science, Section Plant Breeding, 14, 2023. https://doi.org/10.3389/fpls.2023.1209445

Abstract

Garden roses are an economically important horticultural crop worldwide and two major fungal pathogens, black spot of rose (Diplocarpon rosae F.A. Wolf) and cercospora leaf spot of rose (Rosisphaerella rosicola Pass.) affect both the health and ornamental value of the plant. Most black spot disease resistance work has focused on diploid germplasm and little work has been done on cercospora leaf spot resistance. Using newly developed software tools for autopolyploid genetics, two interconnected tetraploid garden rose F1 populations (phenotyped over the course of 3 years) were used for quantitative trait loci (QTL) analysis of black spot and cercospora leaf spot resistance, as well as plant defoliation. QTL for black spot resistance were mapped to LGs 1-6. QTL for cercospora resistance and susceptibility were found in LGs 1, 4, and 5, and for defoliation in LGs 1, 3, and 5. The major locus on LG 5 for black spot resistance coincides with the previously discovered Rdr4 locus inherited from Rosa L. ‘Radbrite’ (Brite EyesTM) the common parent used in these mapping populations. This work is the first report of any QTL for cercospora resistance/susceptibility in tetraploid rose germplasm and the first report of defoliation QTL in roses. A major QTL for cercospora susceptibility coincides with the black spot resistance QTL on LG 5 (Rdr4). A major cercospora resistance QTL was found on LG 1. These populations provide a genetic resource that will further the knowledge base of rose genetics as more traits are studied. Studying more traits from these populations will allow for stacking of various QTL for desirable traits.
Features
This publication contains information about 40 features:
Feature NameUniquenameType
resistance to Diplocarpon rosaeqRDR.BExMG.2019-ch3QTL
resistance to Diplocarpon rosaeqRDR.BExMG.2019-ch5QTL
resistance to Diplocarpon rosaeqRDR.BExMG.2020-ch1QTL
resistance to Diplocarpon rosaeqRDR.BExMG.2020-ch6QTL
resistance to Diplocarpon rosaeqRDR.BExMG.2021-ch1QTL
resistance to Diplocarpon rosaeqRDR.BExMG.overall-ch3QTL
resistance to Diplocarpon rosaeqRDR.BExMG.overall-ch5QTL
resistance to Cercospora leaf spotqRCLS.BExMG.2019-ch1QTL
resistance to Cercospora leaf spotqRCLS.BExMG.2019-ch5QTL
resistance to Cercospora leaf spotqRCLS.BExMG.2020-ch1QTL
resistance to Cercospora leaf spotqRCLS.BExMG.2020-ch5QTL
resistance to Cercospora leaf spotqRCLS.BExMG.2021-ch1QTL
resistance to Cercospora leaf spotqRCLS.BExMG.2021-ch5QTL
resistance to Cercospora leaf spotqRCLS.BExMG.overall-ch1QTL
resistance to Cercospora leaf spotqRCLS.BExMG.overall-ch5QTL
resistance to Diplocarpon rosae defoliationqRDRD.BExMG.2019-ch1QTL
resistance to Diplocarpon rosae defoliationqRDRD.BExMG.2020-ch3QTL
resistance to Diplocarpon rosae defoliationqRDRD.BExMG.2021-ch5QTL
resistance to Diplocarpon rosae defoliationqRDRD.BExMG.overall-ch3QTL
resistance to Diplocarpon rosaeqRDR.SWxBE.2019-ch5QTL
resistance to Diplocarpon rosaeqRDR.SWxBE.2020-ch4QTL
resistance to Diplocarpon rosaeqRDR.SWxBE.2021-ch2QTL
resistance to Diplocarpon rosaeqRDR.SWxBE.overall-ch1QTL
resistance to Diplocarpon rosaeqRDR.SWxBE.overall-ch5QTL
resistance to Cercospora leaf spotqRCLS.SWxBE.2019-ch1QTL

Pages

Projects
This publication contains information about 1 projects:
Project NameDescription
rose-black_spot-Lau-2023
Featuremaps
This publication contains information about 2 maps:
Map Name
rose-BE_x_MG-F1
rose-SW_x_BE-F1
Stocks
This publication contains information about 5 stocks:
Stock NameUniquenameType
Brite EyesBrite Eyesaccession
My GirlMy Girlaccession
Stormy WeatherStormy Weatheraccession
BE_x_MGBE_x_MGpopulation
SW_x_BESW_x_BEpopulation