Full TGIF Record # 309598
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Web URL(s):https://scisoc.confex.com/scisoc/2019am/meetingapp.cgi/Paper/121092
    Last checked: 12/05/2019
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Publication Type:
Content Type:Abstract or Summary only
Author(s):Vines, Phillip L.; Honig, Josh A.; Vaiciunas, Jennifer; Kubik, Christine; Weibel, Eric N.; Meyer, William A.; Bonos, Stacy A.
Author Affiliation:Vines, Honig, Vaiciunas, Kubik, Weibel, and Bonos: Plant Biology, Rutgers University, New Brunswick, NJ; Meyer: Department of Plant Biology, Rutgers University, New Brunswick, NJ
Title:Quantitative trait locus mapping for growth habit morphology traits in perennial ryegrass (Lolium perenne L.)
Section:C05 turfgrass science
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Molecular techniques, genetics and plant breeding oral (includes student competition)
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Meeting Info.:San Antonio, Texas: November 10-13, 2019
Source:ASA, CSSA and SSSA International Annual Meetings. 2019, p. 121092.
Publishing Information:[Madison, Wisconsin]: [American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America]
# of Pages:1
Keywords:TIC Keywords: Gene mapping; Genetic analysis; Growth habit; Lolium perenne; Morphological evaluation; Morphology; Quantitative trait loci
Abstract/Contents:"Perennial ryegrass (Lolium perenne L.) is a widely used cool-season turfgrass species. Breeding for turf-type perennial ryegrass is challenging because morphological traits that are desirable for turf quality characteristics often do not align with morphological traits that are desirable for seed production. For turfgrass purposes, a prostrate growth habit contributes to low mowing tolerance, enhanced heat tolerance and winter hardiness, and improved traffic tolerance. However, an upright growth habit contributes to improved seed ripening and harvesting conditions for seed production purposes. Thus, the rationale of this study was to improve our understanding of the genetic basis for growth habit morphology in perennial ryegrass. We conducted a quantitative trait locus (QTL) analysis using the I06 ┼ĺ A89 pseudo-F2 perennial ryegrass mapping population. The QTL analyses were conducted with the individual I06 and A89 parent maps and phenotypic data for growth habit, seedhead angle, plant height, vegetative plant width, and total plant width collected from field nurseries during 2017 and 2018. QTL were identified for growth habit (n=11), seedhead angle (n=2), plant height (n=7), vegetative plant width (n=5), and total plant width (n=3) from the I06 and A89 parent genetic linkage maps. Four QTL were identified across multiple environments, and two QTL were significantly associated with multiple morphological traits. This is the first reported effort for QTL mapping of growth habit traits in turf-type perennial ryegrass. These findings will be useful for future studies regarding the genetic basis for assessing growth habit morphology in perennial ryegrass."
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Vines, P. L., J. A. Honig, J. Vaiciunas, C. Kubik, E. N. Weibel, W. A. Meyer, et al. 2019. Quantitative trait locus mapping for growth habit morphology traits in perennial ryegrass (Lolium perenne L.). Agron. Abr. p. 121092.
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    Last checked: 12/05/2019
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