학술논문
Genetic Diversity Measured by RAPDs in Korean Barley Germplasm Pools
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- 영문명
- 발행기관
- 한국작물학회
- 저자명
- Hong-Sik Kim 백성범(Seong-Bum Baek) Kwang-Geun Park Jung-Gon Kim Jung-Hyun Nam
- 간행물 정보
- 『한국작물학회지』제50권 제2호, 131~141쪽, 전체 11쪽
- 주제분류
- 농수해양 > 기타농수해양
- 파일형태
- 발행일자
- 2005.06.30
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국문 초록
영문 초록
Molecular-based genetic diversity for a set of 141 accessions of Korean barley cultivars and 24 accessions of foreign exotic cultivars were analyzed using random amplified polymorphic DNAs (RAPDs). Different level of genetic variability was observed with 30 random decamer primers in the Korean barley varieties and breeding lines which were preliminarily classified by morphological (hulled & hulless barley) and end-use (malting barley) and/or by the released periods. A total of 74 RAPD bands were scored, and the number of bands per primer varied from 1 to 7 with an average of 2.74. The hulled barley pool had one more marker genotype per primer than the hulless barley pool. The polymorphic information content (PIC) values based on the band pattern frequencies among genotypes varied depending on genetic pools where mean PICs of hulled, hulless and malting barleys were 0.62, 0.57, and 0.43, respectively. Certain genomic loci amplified by opR04, opF01, opB05, and opC13 were highly polymorphic with PIC>0.8. Patterns and temporal trends of genetic diversity assessed over the period from 1970s to 1990s had a tendency to increase, and in particular, this upward slant was quite clear and significant for the hulless barley pool. In the cluster analysis using genetic similarity matrix calculated from RAPD profiles, two major groups and several small subgroups were classified. Major grouping of materials was not affected by the presence of the husk but by their genetic background and the spike-row type. The validity of information on the genetic diversity and relationships between genotypes will have been reviewed to predict their yield potential.
목차
MATERIALS AND METHODS
RESULTS AND DISCUSSION
REFERENCES
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