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| DOI: | 10.1007/s11032-006-9034-1 |
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| Web URL(s): | https://link.springer.com/content/pdf/10.1007%2Fs11032-006-9034-1.pdf
Last checked: 01/17/2018
Requires: PDF Reader
Notes: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | Xiong, Yanwen;
Fei, Shui-zhang;
Brummer, E. Charles;
Moore, Kenneth J.;
Barker, Reed E.;
Jung, Geunhwa;
Curley, J.;
Warnke, Scott E. |
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| Author Affiliation: | Xiong and Fei: Department of Horticulture, Iowa State University, Ames, IA; Brummer and Moore: Department of Agronomy, Iowa State University, Ames, IA; Barker: United States Department of Agriculture-Agriculture Research Service, Corvallis, OR; Jung: Department of Plant, Soil, and Insect Sciences, University of Massachusetts, Amherst, MA; Curley: Department of Plant Pathology, University of Wisconsin, Madison, WI; Warnke: United States Department of Agriculture-Agriculture Research Service, Beltsville, MD |
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| Title: | QTL analyses of fiber components and crude protein in an annual × perennial ryegrass interspecific hybrid population |
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| Source: | Molecular Breeding. Vol. 18, No. 4, November 2006, p. 327-340. |
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| Publishing Information: | The Netherlands: Kluwer Academic Publishers |
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| # of Pages: | 14 |
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| Related Web URL: | https://link.springer.com/article/10.1007%2Fs11032-006-9034-1
Last checked: 01/19/2018
Notes: Abstract only |
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| Keywords: | TIC Keywords: Acid detergent fiber; Acid detergent lignin; Breeding aims; Crude protein content; Digestibility; Forage crops; Interspecific hybridization; Lolium multiflorum; Lolium perenne; Lolium x hybridum; Neutral detergent fiber; Quantitative trait loci
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| Abstract/Contents: | "Annual (Lolium multiflorum Lam.) and perennial (Lolium perenne L.) ryegrasses are two important forage and turfgrass species. Improving the digestibility of forage by decreasing fiber content is a major goal in forage crop breeding programs. An annual × perennial ryegrass interspecific hybrid population was used to map quantitative trait loci (QTLs) for fiber components, neutral detergent fiber (NDF), acid detergent fiber (ADF), and acid detergent lignin (ADL), and crude protein (CP). Samples were harvested three times in August and September 2003 and August 2004, respectively. Simple interval mapping was used to detect QTLs from both the male and female parental maps previously developed for the population. Fiber components were all correlated positively with each other and were negatively correlated with CP. The largest correlations were between NDF and ADF with r = 0.86, 0.72, and 0.82 for each of the three harvests. All four traits showed intermediate broad-sense heritability values ranging from 0.35 to 0.72. A total of 63 QTLs were detected for the four traits measured over the three harvests from both the female and male maps. Coincident QTLs were detected on linkage groups (LGs) 2, 6, and 7 for NDF, LGs 1, 2, and 7 for ADF, LGs 6 and 7 for ADL, and LG 2 for CP, respectively. Coincident QTLs were also detected on LGs 2, 6, and 7 for NDF and ADF, providing evidence of the genetic basis of the observed high level of phenotypic correlation. The QTLs on LGs 2, 6, and possibly 7 for fiber components were co-located on the same LG as several lignin biosynthetic genes from perennial ryegrass." |
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| Language: | English |
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| References: | 35 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Xiong, Y., S.-z. Fei, E. C. Brummer, K. J. Moore, R. E. Barker, G. Jung, et al. 2006. QTL analyses of fiber components and crude protein in an annual × perennial ryegrass interspecific hybrid population. Molecular Breeding. 18(4):p. 327-340. |
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| DOI: 10.1007/s11032-006-9034-1 |
| Web URL(s):
https://link.springer.com/content/pdf/10.1007%2Fs11032-006-9034-1.pdf
Last checked: 01/17/2018
Requires: PDF Reader
Notes: Item is within a limited-access website |
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