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Web URL(s): | https://scisoc.confex.com/scisoc/2017am/webprogram/Paper106572.html Last checked: 10/13/2017 |
Publication Type:
| Report |
Content Type: | Abstract or Summary only |
Author(s): | Yu, Xingwang;
Milla-Lewis, Susana R. |
Author Affiliation: | Crop Science, North Carolina State University, Raleigh, NC |
Title: | A high-density genetic linkage map and QTL analysis of drought-related traits in St. Augstinegrass [Augustinegrass] using genotyping-by-sequencing |
Section: | C05 Turfgrass Science Other records with the "C05 Turfgrass Science" Section
Molecular techniques, turf genetics and breeding (includes student competition) Other records with the "Molecular techniques, turf genetics and breeding (includes student competition)" Section
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Meeting Info.: | Tampa, Florida: October 22-25, 2017 |
Source: | ASA, CSSA and SSSA International Annual Meetings. 2017, p. 106572. |
Publishing Information: | [Milwaukee, Wisconsin]: [American Society of Agronomy and the Entomological Society of America] |
# of Pages: | 1 |
Keywords: | TIC Keywords: Drought resistance; Genetic linkage; Genotyping; Mapping; Quantitative trait loci; Simple sequence repeats; Stenotaphrum secundatum
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Abstract/Contents: | "St. Augustinegrass (Stenotaphrum secundatum) is a warm-season grass species commonly utilized as turf in the southeastern US. To determine the genetic basis of drought-related traits in St. Augustinegrass, we used a Raleigh x Seville pseudo-F2 mapping population to construct a high-density linkage map from 2,871 single-nucleotide polymorphisms (SNPs) and 85 SSR markers. A total of 2,956 markers were assigned to nine linkage groups. The genetic linkage map had a total length of 1244.25 cM, with an average of 0.42 cM between markers. The population was evaluated for drought tolerance both under greenhouse and field conditions. Data was collected on root length and dry weight, leaf relative water content, and electrolyte leakage. Significant variation was observed among parents and progeny. Twenty four putative QTL were identified on six linkage groups. Bioinformatics analysis revealed potential genes located in these QTL regions were involved in drought response in diverse pathways. The QTL regions and associated molecular markers identified in this study could be used to improve the drought tolerance breeding in St. Augustinegrass." |
Language: | English |
References: | 0 |
Note: | This item is an abstract only! "117-2" |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Yu, X., and S. R. Milla-Lewis. 2017. A high-density genetic linkage map and QTL analysis of drought-related traits in St. Augstinegrass [Augustinegrass] using genotyping-by-sequencing. Agron. Abr. p. 106572. |
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