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SSR 마커를 이용한 아시아 지역의 아마란스 집단의 유전적 다양성 및 집단구조분석 원문보기

  • 저자

    박철순

  • 학위수여기관

    공주대학교 산업과학대학원

  • 학위구분

    국내석사

  • 학과

    작물과학 및 원예학전공

  • 지도교수

    박용진

  • 발행년도

    2014

  • 총페이지

    iii, 29 p.

  • 키워드

    Amaranth; genetic diversity; population structure; SSRs;

  • 언어

    kor

  • 원문 URL

    http://www.riss.kr/link?id=T13532666&outLink=K  

  • 초록

    Amaranths (Amaranthus sp.), an endemic variety, are now grown widely across the world. A total of 14 simple sequence repeat (SSR) markers were used to analyze the genetic diversity of 59 accessions of cultivated amaranth from Asian countries. A total of 63 alleles were detected with an average of 4.5 per locus. The averaged values of gene diversity(GD) and polymorphism information content (PIC) for each SSR locus were 0.35 and 0.33, respectively. Alleles per locus in South Asia were 2.79, whereas 2.93 and 3.79 alleles per locus were found in Nepal and India, respectively. The mean gene diversity in Central Asia and East Asia was 0.36 and 0.28, respectively, whereas the mean PIC values for each SSR locus were 0.27 and 0.22, respectively. The genetic diversity and PIC of the India amaranths were higher than that of other Asian countries. The model-based structure analysis revealed the presence of three subpopulations, which was basically consistent with clustering based on genetic distance. An AMOVA analysis showed that the between-population component of genetic variance was less than 56.16% in contrast to 43.84% for the within-population component. The overall FST value was 0.57, very great genetic differentiation within Asian amaranths. These findings could be used for designing effective breeding programs aimed at broadening the genetic bases of commercially grown varieties.


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