Complex Genomic Landscape of Inversion Polymorphism in Europe's Most Destructive Forest Pest

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41320%2F24%3A101526" target="_blank" >RIV/60460709:41320/24:101526 - isvavai.cz</a>

Result on the web

<a href="https://academic.oup.com/gbe/article/16/12/evae263/7916417?login=true" target="_blank" >https://academic.oup.com/gbe/article/16/12/evae263/7916417?login=true</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1093/gbe/evae263" target="_blank" >10.1093/gbe/evae263</a>

Result language

angličtina

Original language name

Complex Genomic Landscape of Inversion Polymorphism in Europe's Most Destructive Forest Pest

Original language description

In many species, polymorphic genomic inversions underlie complex phenotypic polymorphisms and facilitate local adaptation in the face of gene flow. Multiple polymorphic inversions can co-occur in a genome, but the prevalence, evolutionary significance, and limits to complexity of genomic inversion landscapes remain poorly understood. Here, we examine genome-wide genetic variation in one of Europe's most destructive forest pests, the spruce bark beetle Ips typographus, scan for polymorphic inversions, and test whether inversions are associated with key traits in this species. We analyzed 240 individuals from 18 populations across the species' European range and, using a whole-genome resequencing approach, identified 27 polymorphic inversions covering similar to 28% of the genome. The inversions vary in size and in levels of intra-inversion recombination, are highly polymorphic across the species range, and often overlap, forming a complex genomic architecture. We found no support for mechanisms such as directional selection, overdominance, and associative overdominance that are often invoked to explain the presence of large inversion polymorphisms in the genome. This suggests that inversions are either neutral or maintained by the combined action of multiple evolutionary forces. We also found that inversions are enriched in odorant receptor genes encoding elements of recognition pathways for host plants, mates, and symbiotic fungi. Our results indicate that the genome of this major forest pest of growing social, political, and economic importance harbors one of the most complex inversion landscapes described to date and raise questions about the limits of intraspecific genomic architecture complexity.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10602 - Biology (theoretical, mathematical, thermal, cryobiology, biological rhythm), Evolutionary biology

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Genome Biology and Evolution

ISSN

1759-6653

e-ISSN

1759-6653

Volume of the periodical

16

Issue of the periodical within the volume

12

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

23

Pages from-to

1-23

UT code for WoS article

001379193100001

EID of the result in the Scopus database

2-s2.0-85212825920