Full TGIF Record # 324868
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Web URL(s):https://scisoc.confex.com/scisoc/2022am/meetingapp.cgi/Paper/143271
    Last checked: 01/24/2023
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Publication Type:
Content Type:Abstract or Summary only
Author(s):Wu, Shidi
Author Affiliation:Rutgers University
Title:Genetic mapping of summer patch resistance in the hard fescue R10 X S5 mapping population
Section:Molecular Techniques, Genetics, Microbiome, and Turfgrass Breeding Oral (includes student competition)
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C05 turfgrass science
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Meeting Info.:Baltimore, Maryland: November 6-9, 2022
Source:ASA, CSSA, SSSA International Annual Meeting. 2022, p. 143271.
Publishing Information:[Madison, Wisconsin]: [American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America]
# of Pages:1
Abstract/Contents:"Hard fescue (Festuca brevipila Tracey) is a cool-season turfgrass known for exceptional performance under low-maintenance conditions but is damaged by summer patch disease. Summer patch is a root disease caused by Magnaporthiopsis poae and Magnaporthiopsis meyeri-festucae. The objectives of this study were to develop the mapping population, construct a genetic linkage map, and identify Quantitative Trait Loci (QTL) for summer patch resistance in hard fescue. The parental clones R10 (resistant) and S5 (susceptible) were selected in a preliminary study based on the phenotypic performance toward summer patch resistance. Full-sib progeny populations are constructed by R10 ([Female symbol]) x S5 ([Male symbol]) and S5 ([Female symbol]) x R10 ([Male symbol]). 100 progeny for each population (200 progeny total) were established in three identical mowed spaced-plant trials. The populations were arranged in a randomized complete block design with four replications. A mixture of an M. meyeri-festucae isolate (SCR9) and an M. poae isolate (C11) served as inoculum for the trials. The disease severity of hard fescue clones was assessed by visual rating on a scale of 1 to 10 during the summers of 2018 through 2021. Next Generation Sequencing was performed, and the sequence data were demultiplexed by Stacks with a reference genome to find SNPs. We obtained 6494 SNPs and 7142 SNPs shared by 90% of samples for R10 x S5 and S5 x R10 populations, respectively. Two linkage maps were constructed using 1203 SNPs and 1181 SNPs for R10 x S5 and S5 x R10 populations, respectively. This is the first report for QTL mapping of summer patch resistance in hard fescue and will help to the development of hard fescue cultivars with improved resistance to summer patch in a more efficient method."
See Also:See also related abstract in ASA, CSSA and SSSA International Annual Meetings, 2021, p. 138273, R=317130. R=317130
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Wu, S. 2022. Genetic mapping of summer patch resistance in the hard fescue R10 X S5 mapping population. Agron. Abr. p. 143271.
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    Last checked: 01/24/2023
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