Application of RAPD in comparison of diversity of common pistachio psylla (Agonoscena pistaciae Burckhardt & Lauterer) populations in some northern and southern regions of Kerman province

Document Type : Research Paper

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Abstract

The current study aimed to investigate the genetic structure of common pistachio psylla (Agonoscena pistaciae Burckhardt & Lauterer)populations in some pistachio planting areas in Kerman province with different chemical control management programs. sampling was conducted in different regions including: Zangi-abad Kerman and Haft bagh Kerman (regions with severe chemical control), Dashtab Baft (region with low chemical control) and Esfandagheh Jiroft (region without chemical control) during July-August in 2012. DNA of specimens were extracted with Chelex method and amplified with eight RAPD primers including: OPA-01, OPA-02, OPA-03, OPA-04, OPA-07, OPB-07, OPK-17 and OPO-05. After observation and scoring bands patterns, data were analyzed with NTSYS and POPGENE softwares. Accordingly, OPA-02 was found the most useful primer, that created the greatest amount of PIC with the rate of 0.395. The results of similarity and genetic distance between populations based on Nei's method also showed that the low chemical control and the severe chemical control regions with a genetic distance of 0.0714 have the greatest genetic distance and also the region with the low chemical control had the highest similarity with the regions without chemical control. Individuals were clustered using Jacard similarity index. Results indicated that RAPD primers could separate populations with severe chemical control in a group compare to other regions where, population of two regions of Esfandagheh and Dashtab were clustered in the same group. These result showed that heavy chemical control in some regions could probably result in differences among genetic structures of active populations of this pest.

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History

  • Receive Date: 27 June 2015
  • Accept Date: 27 June 2015

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