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- 저자 : Geleta Dugassa Barka (검색결과 1 건)
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Geleta Dugassa Barka,이준대 한국육종학회 2020 Plant Breeding and Biotechnology Vol.8 No.2
The production of chili pepper (Capsicum annuum L.) is hindered by several biotic factors even though stridingprogresses were made in genetic improvement in the last two decades. Among the advancements were the fast-track geneticimprovement of disease-resistant varieties by the use of marker-assisted selection (MAS) and the conventional breeding-based introgressionof major resistance genes. Marker development, marker-based identification and fine mapping have revealed a large numberof resistance genes, from which cloning of some candidate genes demonstrated the applicability and versatility of map-based cloningfor disease resistance. In some of the recent fine mapping of disease resistance QTLs, closely linked DNA markers were identified,which in turn resulted in the rapid introgression of target gene(s) into breeding lines. Also, progresses were made on the characterizationand map-based cloning of resistance genes conferring broad-spectrum resistance. As the number of identified and characterizedresistance genes and the DNA markers linked to resistance genes are steadily generated, the development of multiple/durable resistanceto major chili pepper diseases is accelerated by MAS. In the present review, the development of molecular markers, marker-basedmapping of genes conferring resistance to ten major chili pepper diseases were discussed, focusing on the recent advancements in majorand QTL-spanning resistance gene mapping. The review provides up-to-date insights into the development of DNA markers linked todisease resistance genes and the cloning of resistance genes, which are all so crucial in pepper breeding for disease resistance.
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