TITLE

Population genetic structure and ecological niche modelling of the leafhopper Hishimonus phycitis

AUTHOR(S)
Shabani, Mahnaz; Bertheau, Coralie; Zeinalabedini, Mehrshad; Sarafrazi, Alimorad; Mardi, Mohsen; Mohajeri Naraghi, Sepehr; Rahimian, Heshmatollah; Shojaee, Mahmoud
PUB. DATE
June 2013
SOURCE
Journal of Pest Science;Jun2013, Vol. 86 Issue 2, p173
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Witches' broom disease of lime, caused by ' Candidatus Phytoplasma aurantifolia', is responsible for major losses of Mexican lime trees in Southern Iran, Oman and the United Arab Emirates. The causative phytoplasma is transmitted by the leafhopper, Hishimonus phycitis. We combined ecological niche modelling with environmental and genetic data for six populations of H. phycitis from Iran and one from Oman. The mitochondrial cytochrome c oxidase I (COI) gene and nine microsatellite DNA markers were used for the genetic analyses. Although the Oman population had specific haplotypes, the COI sequences were highly conserved among all populations studied. In contrast, the microsatellite data divided the populations from Iran and Oman into two separate clades. An analysis of molecular variance indicated a high level of variation within populations. The Mantel test showed no correlation between genetic and geographical distances. Gene flow values were small between the populations from Iran and north of Oman but significantly higher among the Iranian populations supporting the differentiation between Iran and Oman. In addition, we found that patterns of genetic divergence within Iranian populations were associated strongly with divergence in terms of their ecological niches. Data on six climatic variables, including elevation, were used to create ecological niche models. Our results suggest that the genetic differentiation of H. phycitis may be attributable to climatic conditions and/or geographical barriers.
ACCESSION #
87621670

 

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