| Abstract Detail
Thursday Afternoon Breeding and Variation Kim, Ki-Taek [1]. Breeding and molecular markers in hot pepper. IN Korea most of commercial F1 cultivars were produced by using cytoplasmic-genic male sterility (CGMS) system. In chilli pepper CGMS was first reported by Peterson in 1958 and this CGMS line has been widely used as the only male sterile source for commercial F1 hybrids seed production in Korea. But recently unstability of the sterility was reported and the genotypes were identified. This unstable male sterility was especially the limitation of the breeding of new cultivars in Southeast Asian markets. Molecular markers are now developing to identify restore gene (Rf) and unstable gene (St) by the team work approach. Molecular markers of chili were considered as good tools for indirect selection in commercial breeding program. The chili breeders are now using the various kinds of DNA markers linked to resistance genes to Cucumber mosaic virus (CMV), Tobacco mosaic virus (TMV), and other diseases. Many researchers are trying to develop the molecular markers for the purpose of practical breeding. Especially they are trying to develop molecular markers associated with the major diseases like as Phytophthora root rot and anthracnose. Their damage accounts for approximately 10-20% loss in Korea. In addition, other breeding activities and molecular marker programs of hot pepper will be introduced in the presentation.
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1 - National Horticultural Research Institute, Horticulture Biotechnology Division, 540-41 Tap-dong, Suwon, 441-440, Rep. of Korea
Keywords:
hot pepper
commercial breeding
molecular marker.
Session: SOL07-6
Location: Ballroom AB/Monona Terrace
Date: Thursday, July 27th, 2006
Time: 4:30 PM
Abstract ID:120 |
