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- Title
Identification of QTLs for capsaicinoids, fruit quality, and plant architecture-related traits in an interspecific Capsicum RIL population.
- Authors
Yarnes, Shawn C.; Ashrafi, Hamid; Reyes-Chin-Wo, Sebastian; Hill, Theresa A.; Stoffel, Kevin M.; Van Deynze, Allen; Gulick, P.
- Abstract
Quantitative trait loci (QTL) analyses in pepper are common for horticultural, disease resistance, and fruit quality traits; although none of the studies to date have used sequence-based markers associated with genes. In this study we measured plant architectural, phenological, and fruit quality traits in a pepper mapping population consisting of 92 recombinant inbred lines derived from a cross between Capsicum frutescens acc. 2814-6 and C. annuum var. NuMexRNAKY. Phenotypic measurements were correlated to loci in a high-density EST-based genetic map. In total, 96 QTL were identified for 38 traits, including 12 QTL associated with capsaicinoid levels. Twenty-one loci showed correlation among seemingly unrelated phenotypic categories, highlighting tight linkage or shared genetics between previously unassociated traits in pepper.
- Subjects
LOCUS (Genetics); CAPSAICINOIDS; FRUIT quality; PLANT anatomy; PEPPERS; PLANT productivity; TABASCO pepper; CAPSICUM annuum
- Publication
Genome, 2013, Vol 56, Issue 1, p61
- ISSN
0831-2796
- Publication type
Article
- DOI
10.1139/gen-2012-0083