Ecology and Evolution (2022) 12 (7 - e9090)

Selected publication you are invited to contribute to the discussion section (above tab)

Inusa Jacob Ajene, Fathiya Mbarak Khamis, Barbara van Asch, Gerhard Pietersen, Nurhussen Seid, Anne Wambui Wairimu, Fidelis Levi Ombura, Komivi Senyo Akutse, Mamoudou Sétamou, Sevgan Subramanian, Samira Mohammed and Sunday Ekesi (2022)
Genetic diversity of Diaphorina citri (Hemiptera: Liviidae) unravels phylogeographic structure and invasion history of eastern African populations
Ecology and Evolution 12 (7 - e9090)
Abstract: The Asian citrus psyllid (Diaphorina citri Kuwayama) is a key pest of Citrus sp. worldwide, as it acts as a vector for Candidatus Liberibacter asiaticus, the bacterial pathogen that causes citrus Huanglongbing. Diaphorina citri has been reported in Kenya, Tanzania, and more recently in Ethiopia. This study assessed the genetic diversity and phylogeographic structure of the pest to gain insights into the potential sources of its introduction into Africa. Population structure and differentiation of D. citri populations from China, Ethiopia, Kenya, Tanzania, and the USA were assessed using 10 microsatellite loci. Additionally, five new complete mitogenomes of D. citri collected in China, Ethiopia, Kenya, Tanzania, and the USA were analyzed in the context of publicly available sequences. Genotype data grouped the D. citri populations from Kenya and Tanzania in one cluster, and those from Ethiopia formed a separate cluster. The two genetic clusters inferred from genotype data were congruent with mitochondrial sequence data. The mitogenomes from Kenya/Tanzania/China had 99.0% similarity, and the Ethiopia/USA had 99.9% similarity. In conclusion, D. citri populations in eastern Africa have different sources, as the Kenyan and Tanzanian populations probably originated from southeastern Asia, while the Ethiopian population most probably originated from the Americas.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Full text of article

Database assignments for author(s): Mamoudou Sétamou, Sevgan Subramanian, Sunday Ekesi

Research topic(s) for pests/diseases/weeds:
molecular biology - genes
population dynamics/ epidemiology

---

Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Diaphorina citri		Ethiopia
	Diaphorina citri		Kenya
	Diaphorina citri		Tanzania