English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Background  Maternally inherited endosymbionts like  Wolbachia pipientis  are in linkage disequilibrium with the mtDNA of their hosts. Therefore, they can induce selective sweeps, decreasing genetic diversity over many generations. This sex ratio distorter, that is involved in the origin of parthenogenesis and other reproductive alterations, infects the parthenogenetic weevil  Naupactus cervinus , a serious pest of ornamental and fruit plants.    Results  Molecular evolution analyses of mitochondrial ( COI ) and nuclear ( ITS1 ) sequences from 309 individuals of  Naupactus cervinus  sampled over a broad range of its geographical distribution were carried out. Our results demonstrate lack of recombination in the nuclear fragment, non-random association between nuclear and mitochondrial genomes and the consequent coevolution of both genomes, being an indirect evidence of apomixis. This weevil is infected by a single  Wolbachia  strain, which could have caused a moderate bottleneck in the invaded population which survived the initial infection.    Conclusions  Clonal reproduction and  Wolbachia  infection induce the coevolution of bacterial, mitochondrial and nuclear genomes. The time elapsed since the  Wolbachia  invasion would have erased the traces of the demographic crash in the mtDNA, being the nuclear genome the only one that retained the signal of the bottleneck. The amount of genetic change accumulated in the mtDNA and the high prevalence of  Wolbachia  in all populations of  N. cervinus  agree with the hypothesis of an ancient infection.  Wolbachia  probably had great influence in shaping the genetic diversity of  N. cervinus . However, it would have not caused the extinction of males, since sexual and asexual infected lineages coexisted until recent times.

bmc evolutionary biology

Mito-nuclear genetic comparison in a Wolbachia infected weevil: insights on reproductive mode, infection age and evolutionary forces shaping genetic variation