African Journal of

  • Abbreviation: Afr. J. Biotechnol.
  • Language: English
  • ISSN: 1684-5315
  • DOI: 10.5897/AJB
  • Start Year: 2002
  • Published Articles: 12218

Full Length Research Paper

Using optimized random amplified polymorphic DNA (RAPD) markers to identify the category status of Citrus nobilis Lour. Gonggan

Ji Qian-hua1*, Zeng Ji-wu2 and Guo Yan-jun1
1Fruit Tree Research Institute, Zhaoqing University, Guangdong, (526061) China. 2Fruit Tree Research Institute, Guangdong Academy of Agricultural Sciences, Guangdong, China.
Email: [email protected]

  •  Accepted: 23 September 2011
  •  Published: 19 October 2011


Citrus nobilis Lour. Gonggan is an excellent fruit variety which is widely planted in South China. The origin of Gonggan is not clear. It is conjectured that its origin is from a cross between tangerine and orange; however, there is no direct evidence to confirm this. Here, we applied the optimized random amplified polymorphic DNA (RAPD)-PCR to amplify genus Citrus species: 1) to better understand the genetic relationship between C. nobilis Lour. Gonggan and other Citrus species; and (2) to address the phylogenetic relationship among Citrus species. A total of 21 RAPD primers were used to screen 4 Citrus species and 10 of them efficiently amplified the genomic DNA of 23 Citrus accessions. A total of 87 locus/alleles were generated by those 10 primers with an average of 97.7% polymorphic. Our data supported that C. nobilis Lour. Gonggan belongs to a big group with most tested tangerine and orange and a subgroup with Citrus haniana and Citrus flamea, implying that either C. haniana or C. flamea is likely to be one of the parents of C.nobilis Lour. Gonggan.


Key words: Citrus nobilis Lour. Gonggan, random amplified polymorphism DNA (RAPD), phylogenetic relationship.

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