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Feasibility of genomic prediction for brown rot(Monilinia spp.)resistance in peach

Fruit Research 2022年第1期2卷 13-24页

作者： Wanfang Fu cassia da silva linge John Mark Lawton Ksenija Gasic Department of Plant and Environmental Sciences Clemson UniversityClemsonSC 29634-0002USA

Brown rot,caused by Monilinia spp.,is one of the most important postharvest diseases of stone fruits *** rot resistance in peach is a polygenic trait controlled by multiple genes with a small *** this study,we assessed the feasibility of genomic prediction(GP)for brown rot resistance in peach using eight contrasting methods(GBLUP,rrBLUP,BayesA,BayesB,BayesC,Bayesian Ridge Regression,Bayesian Lasso and RKHS).A testing panel of 38 cultivars/advanced selections and 288 F1 individuals from 27 pedigree-related breeding families with'Bolinha'and/or'Contender'or almond source of resistance was phenotyped over six seasons(2015 to 2020).GP models outperformed MAS models under fivefold cross validation,and low to moderate predictive accuracy(PA)was achieved by fitting GP model for wounded(W)(0.092−0.449)and low PA for non-wounded(NW)disease severity index(0.129−0.295).An alternative cross validation approach using disease severity index recorded in lab to predict field disease incidence(FDI)in unphenotyped accessions revealed moderate correlation(0.548−0.553).Genomic predicted breeding value distinguished accessions with low FDI from those with high *** results presented here demonstrated feasibility of incorporating GP in peach breeding.

关键词： wound resistance prediction

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RosBREED:bridging the chasm between discovery and application to enable DNA-informed breeding in rosaceous crops

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Horticulture Research 2020年第1期7卷 527-549页

作者： Amy F.Iezzoni Jim McFerson James Luby Ksenija Gasic Vance Whitaker Nahla Bassil Chengyan Yue Karina Gallardo Vicki McCracken Michael Coe Craig Hardner Jason D.Zurn Stan Hokanson Eric van de Weg Sook Jung Dorrie Main cassia da silva linge Stijn Vanderzande Thomas M.davis Lise L.Mahoney Chad Finn Cameron Peace Michigan State University East LansingMI 48824USA Washington State University WenatcheeWA 98801USA University of Minnesota St.PaulMN 55108USA Clemson University ClemsonSC 29634USA University of Florida WimaumaFL 33598USA USda-ARS CorvallisOR 97333USA Washington State University PuyallupWA 98371USA Washington State University PullmanWA 99164USA Cedar Lake Research Group PortlandOR 97215USA University Queensland BrisbaneQLDAustralia Wageningen University and Research 6700 AA WageningenThe Netherlands University of New Hampshire DurhamNH 03824USA

The Rosaceae crop family(including almond,apple,apricot,blackberry,peach,pear,plum,raspberry,rose,strawberry,sweet cherry,and sour cherry)provides vital contributions to human well-being and is economically significant across the *** 2003,industry stakeholder initiatives prioritized the utilization of genomics,genetics,and breeding to develop new cultivars exhibiting both disease resistance and superior horticultural ***,rosaceous crop breeders lacked certain knowledge and tools to fully implement DNA-informed breeding—a“chasm”existed between existing genomics and genetic information and the application of this knowledge in *** RosBREED project(“Ros”signifying a Rosaceae genomics,genetics,and breeding community initiative,and“BREED”,indicating the core focus on breeding programs),addressed this challenge through a comprehensive and coordinated 10-year effort funded by the USda-NIFA Specialty Crop Research *** was designed to enable the routine application of modern genomics and genetics technologies in *** crop breeding programs,thereby enhancing their efficiency and effectiveness in delivering cultivars with producer-required disease resistances and market-essential horticultural *** review presents a synopsis of the approach,deliverables,and impacts of RosBREED,highlighting synergistic global collaborations and future *** technologies and tools developed are described,including genome-wide scanning platforms and DNA diagnostic *** of DNA-informed breeding use by project participants are presented for all breeding stages,including pre-breeding for disease resistance,parental and seedling selection,and elite selection *** chasm is now bridged,accelerating rosaceous crop genetic improvement.

关键词： breeding cultivar crops

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