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KMID : 0381120120340050451
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Genes and Genomics
2012 Volume.34 No. 5 p.451 ~ p.466
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Trends in genomics and molecular marker systems for the development of some underutilized crops
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Moe Kyaw Thu
Kwon Soon-Wook
Park Yong-Jin
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Abstract
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The term ‘underutilized’ is often used to characterize the range of plant species whose potential contribution to food security, health, income generation, and environmental services has not yet been fully exploited. To harness unexploited resources, the first step is to prevent them from extinction and to conserve them in- and/or ex-situ. To utilize plant species as crops, plants must be collected, conserved, evaluated, and then if necessary manipulated. In this context, significant international efforts have focused on impeding the erosion of genetic diversity. Thousands of new accessions are introduced into germplasm institutes each year. Assessment of their molecular diversity is necessary to eliminate redundant genotypes. Marker systems have been used not only for genotyping to reduce redundancy and develop a core set, but also for a wide variety of other purposes. The use of markers based on single nucleotide polymorphisms, copy number variation, and insertions/deletions, as well as genotyping by sequencing, is becoming popular for genetic mapping and analyses of quantitative trait loci. This review discusses current marker systems and genomic analyses of a number of underutilized crops.
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KEYWORD
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GBS, Genotyping, Mapping, Molecular marker systems, Underutilized crops
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