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| Web URL(s): | https://scisoc.confex.com/scisoc/2016am/webprogram/Paper100447.html
Last checked: 11/22/2016 |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Nie, Gang;
Yu, Xiaoqing;
Taylor, Megan;
Song, Xin;
Wang, Xingchun;
Zhang, Xinquan;
Jiang, Yiwei |
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| Author Affiliation: | Nie, Taylor, and Song: Department of Agronomy, Purdue University, West Lafayette, IN; Yu: Agronomy, Iowa State University, Ames, IA; Wang: Shanxi Agricultural University, Taigu, China; Zhang: Department of Grassland Science, Sichuan Agricultural University, Chengdu, China; Jiang: 915 W. State St., Purdue University, West Lafayette, IN |
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| Title: | Genome-wide association study of heat tolerance in diverse population of perennial ryegrass |
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| Section: | Turfgrass breeding, genetics and molecular techniques poster (includes student competition)
Other records with the "Turfgrass breeding, genetics and molecular techniques poster (includes student competition)" Section
C05 turfgrass science
Other records with the "C05 turfgrass science" Section
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| Meeting Info.: | Phoenix, Arizona: November 6-9, 2016 |
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| Source: | ASA, CSSA and SSSA International Annual Meetings. 2016, p. 100447. |
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| Publishing Information: | [Milwaukee, Wisconsin]: [American Society of Agronomy and the Entomological Society of America] |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Chlorophyll fluorescence; Chlorophyll index; Dry weight; Genomes; Heat resistance; Heat stress; Height; Lolium perenne; Relative water content; Single nucleotide polymorphism
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| Abstract/Contents: | "Perennial ryegrass (Lolium perenne L.) is an important cool-season grass species widely cultivated in the temperate regions with high quality for forage and turf. Susceptibility to high temperature in summer limits its broad use around the world. The objective of this study was to identify the significant associations between single nucleotide polymorphisms (SNPs) and heat tolerance traits in diverse perennial ryegrass accessions. Two hundred and seventy-one worldwide accessions were subjected to 35°C/30°C (day/night) for 14 days. Significant differences in plant height, tiller number, chlorophyll index (Chl), chlorophyll fluorescence (Fv/Fm), leaf fresh weight, leaf dry weight, and leaf water content (LWC) were found among accessions under control and heat stress. A total of 24,995 SNPs were obtained by genotype-by-sequencing from 271 accessions. After controlling population structure and relative kinship under CMLM model, 12 significant associations (P < 2.0 × 10-6) were identified including 8 markers with Fv/Fm, 1 with Chl and 3 with LWC. Gene annotation search on perennial ryegrass genome sequence identified 5 candidate genes in the region of significant associations. Gene functional verification is being conducted. The results will reveal genetic and molecular mechanisms of heat tolerance and facilitate genetic enhancement of perennial ryegrass germplasm aimed at improved heat tolerance." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only!
"168-1634" |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Nie, G., X. Yu, M. Taylor, X. Song, X. Wang, X. Zhang, et al. 2016. Genome-wide association study of heat tolerance in diverse population of perennial ryegrass. Agron. Abr. p. 100447. |
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| Web URL(s):
https://scisoc.confex.com/scisoc/2016am/webprogram/Paper100447.html
Last checked: 11/22/2016 |
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