Molecular characterization of South and East Asian melon, Cucumis melo L., and the origin of Group Conomon var. makuwa and var. conomon revealed by RAPD analysis

Katsunori Tanaka, Atsushi Nishitani, Yukari Akashi, Yoshiteru Sakata, Hidetaka Nishida, Hiromichi Yoshino, Kenji Kato

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Abstract

The genetic diversity and relationship among South and East Asian melon Cucumis melo L. were studied by using RAPD analysis of 69 accessions of melon from India, Myanmar, China, Korea, and Japan. The genetic diversity was large in India, and quite small in Group Conomon var. makuwa and var. conomon from East Asia, clearly indicating a decrease in genetic variation from India toward the east. Cluster analysis based on genetic distance classified 17 groups of accessions into two major clusters: cluster I comprising 12 groups of accessions from India and Myanmar and cluster II that included five groups of accessions of Group Conomon var. makuwa and var. conomon from East Asia. Cluster I was further divided into three subclusters, of which subclusters Ib and Ic included small- and large-seed type populations, respectively. Therefore, this division was based on their seed size, not cultivation area. The large-seed type from east India was differently included in the subcluster of small-seed type (Ib). A total of 122 plants of 69 accessions were classified into three major clusters and subclusters: clusters I and II comprised melon accessions mostly from India and Myanmar, and cluster III comprised Group Conomon var. makuwa and var. conomon from East Asia. The frequency of large- and small-seed types was different between clusters I and II, also indicating genetic differentiation between large- and small-seed types. One plant of the small-seed type from east India was differently included in cluster III, and two plants from east India were classified into subcluster IV. These results clearly showed that South Asian melon is genetically differentiated by their seed size, and that small-seed type melon in east India is closely related to Group Conomon var. makuwa and var. conomon.

Original languageEnglish
Pages (from-to)233-247
Number of pages15
JournalEuphytica
Volume153
Issue number1-2
DOIs
Publication statusPublished - Jan 2007

Fingerprint

Cucumis melo
Cucurbitaceae
melons
India
Seeds
seeds
Myanmar
Far East
East Asia
genetic variation
Korea
genetic relationships
genetic distance
Korean Peninsula
Cluster Analysis
China
cluster analysis
Japan

Keywords

  • Cucumis melo
  • Genetic variation
  • Phylogenetic relationship
  • RAPD
  • Var. conomon
  • Var. makuwa

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Horticulture
  • Plant Science

Cite this

Molecular characterization of South and East Asian melon, Cucumis melo L., and the origin of Group Conomon var. makuwa and var. conomon revealed by RAPD analysis. / Tanaka, Katsunori; Nishitani, Atsushi; Akashi, Yukari; Sakata, Yoshiteru; Nishida, Hidetaka; Yoshino, Hiromichi; Kato, Kenji.

In: Euphytica, Vol. 153, No. 1-2, 01.2007, p. 233-247.

Research output: Contribution to journalArticle

Tanaka, Katsunori ; Nishitani, Atsushi ; Akashi, Yukari ; Sakata, Yoshiteru ; Nishida, Hidetaka ; Yoshino, Hiromichi ; Kato, Kenji. / Molecular characterization of South and East Asian melon, Cucumis melo L., and the origin of Group Conomon var. makuwa and var. conomon revealed by RAPD analysis. In: Euphytica. 2007 ; Vol. 153, No. 1-2. pp. 233-247.
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AU - Akashi, Yukari

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