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Research article - Peer-reviewed, 2021

Global similarity, and some key differences, in the metagenomes of Swedish varroa-surviving and varroa-susceptible honeybees

Thaduri, Srinivas; Marupakula, Srisailam; Terenius, Olle; Onorati, Piero; Tellgren-Roth, Christian; Locke, Barbara; de Miranda, Joachim R.;

Abstract

There is increasing evidence that honeybees (Apis mellifera L.) can adapt naturally to survive Varroa destructor, the primary cause of colony mortality world-wide. Most of the adaptive traits of naturally varroa-surviving honeybees concern varroa reproduction. Here we investigate whether factors in the honeybee metagenome also contribute to this survival. The quantitative and qualitative composition of the bacterial and viral metagenome fluctuated greatly during the active season, but with little overall difference between varroa-surviving and varroa-susceptible colonies. The main exceptions were Bartonella apis and sacbrood virus, particularly during early spring and autumn. Bombella apis was also strongly associated with early and late season, though equally for all colonies. All three affect colony protein management and metabolism. Lake Sinai virus was more abundant in varroa-surviving colonies during the summer. Lake Sinai virus and deformed wing virus also showed a tendency towards seasonal genetic change, but without any distinction between varroa-surviving and varroa-susceptible colonies. Whether the changes in these taxa contribute to survival or reflect demographic differences between the colonies (or both) remains unclear.

Published in

Scientific Reports

2021, volume: 11, number: 1, article number: 23214
Publisher: NATURE PORTFOLIO

Authors' information

Thaduri, Srinivas
Swedish University of Agricultural Sciences, Department of Ecology
Marupakula, Srisailam
Swedish University of Agricultural Sciences, Department of Forest Mycology and Plant Pathology
Uppsala University
Swedish University of Agricultural Sciences, Department of Ecology
Tellgren-Roth, Christian
SciLifeLab
Locke, Barbara (Locke Grandér, Barbara)
Swedish University of Agricultural Sciences, Department of Ecology
Swedish University of Agricultural Sciences, Department of Ecology

UKÄ Subject classification

Ecology

Publication Identifiers

DOI: https://doi.org/10.1038/s41598-021-02652-x

URI (permanent link to this page)

https://res.slu.se/id/publ/114929