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HAO Yu-Min, GUO Lan, HAN Yan-Chuang, DIAO Ying, YANG Xin-Sun, HU Zhong-Li. Genetic Diversity Analysis of Sweet Potato Based on SRAP Markers[J]. Plant Science Journal, 2007, 25(4): 406-409.
Citation: HAO Yu-Min, GUO Lan, HAN Yan-Chuang, DIAO Ying, YANG Xin-Sun, HU Zhong-Li. Genetic Diversity Analysis of Sweet Potato Based on SRAP Markers[J]. Plant Science Journal, 2007, 25(4): 406-409.
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Genetic Diversity Analysis of Sweet Potato Based on SRAP Markers

  • 1.

    Key Laboratory of the Ministry of Education for Plant Developmental Biology, Wuhan University, Wuhan 430072, China

  • 2.

    Food Crops Research Institute, Hubei Academy of Agricultural Sciences, Wuhan 430064, China

  • 3.

    Agricultural Department of Hubei Province, Wuhan 430070, China

  • 4.

    Department of Life Sciences, Chongqing University of Arts and Sciences, Yongchuan,Chongqing 400068, China

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  • Received Date: January 23, 2007
  • Revised Date: March 28, 2007
  • Published Date: August 27, 2007
    Graphical Abstract
    • Abstract
  • A molecular marker SRAP(sequence-related amplified polymorphism) was used to detect DNA polymorphism among the 36 sweet potato(Ipomoea batatas)accessions from different regions.Six pairs of primers with polymorphism among 36 accessions were used to amplify the genomic DNA.A total of 112 polymorphic bands were generated,110 of them were polymorphic bands,with an average of 18 maker bands per pair of primers.The dendrogram generated by UPMGA showed the genetic relationship among 36 accessions.The genetic similarity among 36 accessions varied from 0.62 to 0.92.In the dendrogram,there was no obvious genetic diversity between Asian accessions and American accessions,indicating that there was not geographic differentiation in sweet potato.Wild relative I.trifida(6×) clustered together with other sweet potato cultivars without distinct genetic differentiation,which suggested there was high genetic coefficient between them.And there was high genetic similarity among Chinese cultivars because they clustered together.
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