Tags

Type your tag names separated by a space and hit enter

Identifying quantitative trait loci for resistance to Sclerotinia head rot in two USDA sunflower germplasms.
Phytopathology. 2008 Aug; 98(8):926-31.P

Abstract

Sclerotinia head rot is a major disease of sunflower in the world, and quantitative trait loci (QTL) mapping could facilitate understanding of the genetic basis of head rot resistance and breeding in sunflower. One hundred twenty-three F2:3 and F2:4 families from a cross between HA 441 and RHA 439 were studied. The mapping population was evaluated for disease resistance in three field experiments in a randomized complete block design with two replicates. Disease incidence (DI) and disease severity (DS) were assessed. A genetic map with 180 target region amplification polymorphism, 32 simple sequence repeats, 11 insertion-deletion, and 2 morphological markers was constructed. Nine DI and seven DS QTL were identified with each QTL explaining 8.4 to 34.5% of phenotypic variance, suggesting the polygenic basis of the resistance to head rot. Five of these QTL were identified in more than one experiment, and each QTL explained more than 12.9% of phenotypic variance. These QTL could be useful in sunflower breeding. Although a positive correlation existed between the two disease indices, most of the respective QTL were located in different chromosomal regions, suggesting a different genetic basis for the two indices.

Authors+Show Affiliations

Department of Plant Sciences, North Dakota State University, Fargo 58105, USA.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.

Language

eng

PubMed ID

18943211

Citation

Yue, B, et al. "Identifying Quantitative Trait Loci for Resistance to Sclerotinia Head Rot in Two USDA Sunflower Germplasms." Phytopathology, vol. 98, no. 8, 2008, pp. 926-31.
Yue B, Radi SA, Vick BA, et al. Identifying quantitative trait loci for resistance to Sclerotinia head rot in two USDA sunflower germplasms. Phytopathology. 2008;98(8):926-31.
Yue, B., Radi, S. A., Vick, B. A., Cai, X., Tang, S., Knapp, S. J., Gulya, T. J., Miller, J. F., & Hu, J. (2008). Identifying quantitative trait loci for resistance to Sclerotinia head rot in two USDA sunflower germplasms. Phytopathology, 98(8), 926-31. https://doi.org/10.1094/PHYTO-98-8-0926
Yue B, et al. Identifying Quantitative Trait Loci for Resistance to Sclerotinia Head Rot in Two USDA Sunflower Germplasms. Phytopathology. 2008;98(8):926-31. PubMed PMID: 18943211.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Identifying quantitative trait loci for resistance to Sclerotinia head rot in two USDA sunflower germplasms. AU - Yue,B, AU - Radi,S A, AU - Vick,B A, AU - Cai,X, AU - Tang,S, AU - Knapp,S J, AU - Gulya,T J, AU - Miller,J F, AU - Hu,J, PY - 2008/10/24/pubmed PY - 2009/1/23/medline PY - 2008/10/24/entrez SP - 926 EP - 31 JF - Phytopathology JO - Phytopathology VL - 98 IS - 8 N2 - Sclerotinia head rot is a major disease of sunflower in the world, and quantitative trait loci (QTL) mapping could facilitate understanding of the genetic basis of head rot resistance and breeding in sunflower. One hundred twenty-three F2:3 and F2:4 families from a cross between HA 441 and RHA 439 were studied. The mapping population was evaluated for disease resistance in three field experiments in a randomized complete block design with two replicates. Disease incidence (DI) and disease severity (DS) were assessed. A genetic map with 180 target region amplification polymorphism, 32 simple sequence repeats, 11 insertion-deletion, and 2 morphological markers was constructed. Nine DI and seven DS QTL were identified with each QTL explaining 8.4 to 34.5% of phenotypic variance, suggesting the polygenic basis of the resistance to head rot. Five of these QTL were identified in more than one experiment, and each QTL explained more than 12.9% of phenotypic variance. These QTL could be useful in sunflower breeding. Although a positive correlation existed between the two disease indices, most of the respective QTL were located in different chromosomal regions, suggesting a different genetic basis for the two indices. SN - 0031-949X UR - https://www.unboundmedicine.com/medline/citation/18943211/Identifying_quantitative_trait_loci_for_resistance_to_Sclerotinia_head_rot_in_two_USDA_sunflower_germplasms_ L2 - http://apsjournals.apsnet.org/doi/full/10.1094/PHYTO-98-8-0926?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub=pubmed DB - PRIME DP - Unbound Medicine ER -