Genetic Diversity in Vector Populations Influences the Transmission Efficiency of an Important Plant Virus

Overview

Journal Biol Lett

Specialty Biology

Date 2024 May 22

PMID 38774968

Authors

Daniel J Leybourne

Mark A Whitehead

Torsten Will

Affiliations

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Abstract

The transmission efficiency of aphid-vectored plant viruses can differ between aphid populations. Intra-species diversity (genetic variation, endosymbionts) is a key determinant of aphid phenotype; however, the extent to which intra-species diversity contributes towards variation in virus transmission efficiency is unclear. Here, we use multiple populations of two key aphid species that vector barley yellow dwarf virus (BYDV) strain PAV (BYDV-PAV), the grain aphid () and the bird cherry-oat aphid (), and examine how diversity in vector populations influences virus transmission efficiency. We use Illumina sequencing to characterize genetic and endosymbiont variation in multiple and populations and conduct BYDV-PAV transmission experiments to identify links between intra-species diversity in the vector and virus transmission efficiency. We observe limited variation in the transmission efficiency of with transmission efficiency consistently low for this species. However, for we observe a range of transmission efficiencies and show that BYDV transmission efficiency is influenced by genetic diversity within the vector, identifying 542 single nucleotide polymorphisms that potentially contribute towards variable transmission efficiency in . Our results represent an important advancement in our understanding of the relationship between genetic diversity, vector-virus interactions, and virus transmission efficiency.

Citing Articles

Genetic diversity in vector populations influences the transmission efficiency of an important plant virus.

Leybourne D, Whitehead M, Will T Biol Lett. 2024; 20(5):20240095.

PMID: 38774968 PMC: 11285819. DOI: 10.1098/rsbl.2024.0095.

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