Full TGIF Record # 263727
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Web URL(s):http://turf.rutgers.edu/research/abstracts/symposium2015.pdf#page=19
    Last checked: 07/30/2015
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Publication Type:
i
Report
Content Type:Abstract or Summary only
Author(s):Jiang, Yiwei
Author Affiliation:Department of Agronomy, Purdue University
Title:Association mapping of abiotic stress tolerance in turfgrass: Opportunities and challenges
Section:Plenary presentations
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Meeting Info.:New Brunswick, New Jersey: January 16, 2015
Source:Proceedings of the Twenty-Fourth Annual Rutgers Turfgrass Symposium. 2015, p. 18.
Publishing Information:New Brunswick, New Jersey: The Center for Turfgrass Science, Rutgers, The State University of New Jersey
# of Pages:1
Keywords:TIC Keywords: Abiotic injury; Association mapping; Breeding improvement; Gene mapping; Genetic resistance; Stress tolerance
Abstract/Contents:"The frequency and intensity of abiotic stress is expected to increase as a result of climate changes that will impact turfgrass growth and persistence. The complexity of the inheritance of abiotic stress tolerance varies between stresses and turfgrass species, posing challenges in studying the traits underlying stress tolerance. Association mapping (AM), also known as linkage disequilibrium (LD) mapping, has been developed as a powerful and alternative approach for dissecting complex traits. It measures the non-random association of alleles with specific traits and maps quantitative trait loci based on historical recombination events in diverse germplasm collections. Compared to biparental linkage mapping, AM provides higher resolution. However, population structure and relatedness among individuals in an association panel often confound the association results. In addition, careful evaluation of stress tolerance traits and generation of reliable phenotypic data are important for a successful AM study. Association mapping of abiotic stress tolerance has not been extensively studied in turfgrass species. To date, through candidate genes association mapping, single nucleotide polymorphisms from LpLEA3 encoding late embryogenesis abundant group 3 protein associated with drought tolerance traits from C-repeat binding factor (CBFIII) associated with cold hardiness have been identified in natural populations of perennial ryegrass. The rapid development of modern sequencing technology allows large numbers of markers to be quickly discovered in turfgrass species, although data computing can pose an obstacle in working on polyploidy turf species without genome reference. The opportunities available an challenges faced using association mapping for turfgrass improvement for enhancing abiotic stress tolerance will be discussed."
Language:English
References:0
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Jiang, Y. 2015. Association mapping of abiotic stress tolerance in turfgrass: Opportunities and challenges. Proc. Rutgers Turfgrass Symp. p. 18.
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Web URL(s):
http://turf.rutgers.edu/research/abstracts/symposium2015.pdf#page=19
    Last checked: 07/30/2015
    Requires: PDF Reader
    Notes: Item is within a single large file
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