@genomebiolevol.bsky.socialLaizé, @joao-pedro-marques.bsky.social @gubrins.bsky.social et al. tested whether nuclear oxidative phosphorylation genes preferentially co-introgress with mitochondrial DNA, allowing for the mitigation of incompatibilities.
@genomebiolevol.bsky.socialEcheverry-Pérez et al. show that tick endosymbionts form a sister group to opportunistic lineages, consistent with repeated host shifts during their evolutionary history.
@genomebiolevol.bsky.socialEsdras Tuyishimire, Molly K Burke & Elizabeth G King develop a theoretical model defining the conditions under which recurrent, strong oscillations in allele frequencies are predicted to occur because of fluctuating selection.
@molbioevol.bsky.socialMies & @mathiesoniain.bsky.social demonstrate that while local ancestry inference recovers biologically meaningful signals in ancient genomes, results can be sensitive to the methods used for inference, particularly in complex regions.
@molbioevol.bsky.socialA new MBE Protocol is now available - Mirchandani et al. present a step-by-step protocol for snpArcher, a workflow that takes raw sequencing reads and a reference genome and produces a joint VCF file suitable for popgen analysis.
@genomebiolevol.bsky.social@alexrepgh.bsky.social et al. identify SNP associated with genes involved in physiological processes such as ion regulation in gills and fatty acid metabolism in the brain during freshwater adaptation by oceanic sticklebacks.
@molbioevol.bsky.socialOur new MBE Highlight focuses on the new study by @victoriaemullin.bsky.social et al. on the sharp decline in genetic diversity in Great Britain bumblebees.
Museum collections reveal loss of genetic diversity in declining bumblebee populations
🔗 academic.oup.com/mbe/article/...
@molbioevol.bsky.social@identitybydissent.bsky.social et al. analyze global invasions of persistently inbreeding ambrosia beetles; findings highlight the importance of outbreeding even when inbreeding is common in a species.
🔗 academic.oup.com/mbe/article/...
🖌️ Marianne Coquilleau
@genomebiolevol.bsky.socialTabuloc et al. show that the fruit pest Drosophila suzukii, resistant to multiple insecticides, exhibits aberrant splicing in many classes of genes, including general stress response and insecticide resistance genes.
@genomebiolevol.bsky.socialKontopoulos et al. screened 190 placental mammal genomes to examine associations between loss, positive selection, and evolutionary rate shifts in protein-coding genes and evolutionary shifts in torpor use
🔗 academic.oup.com/gbe/article/...
📷 Danielle L Levesque
@genomebiolevol.bsky.socialSmith, Musilova & @[email protected] find new sex chromosomes in a group of cichlids from Lake Tanganyika and show that while these involve the same chromosome pairs, the sex chromosomes evolved independently.
@molbioevol.bsky.socialFang et al. propose a model in which extreme ecological transitions can disrupt ancestral mitonuclear coadaptation and promote the emergence of a new coadapted state through systemic nuclear compensation.
@genomebiolevol.bsky.socialVandenabeele et al. show that the numerous phylogenetic incongruences among gene tree topologies in orchids result from pervasive ILS, over which stand out several well-supported, ancient and potentially adaptive gene flow events between lineages.
@molbioevol.bsky.socialCarrasco, @christinatoft.bsky.social & @sfelena.bsky.social reveal host age structure is a major ecological driver of virulence evolution, shaping trade-offs between disease progression and severity and determining specialization vs. generalism.
@molbioevol.bsky.socialMullin et al. use WGS from 101 museum specimens of British/Irish moss carder bumblebees from 1894-2019 to reveal a dramatic drop in genetic diversity: ∼24.6% decrease in heterozygosity and a 2.86-fold increase in ROH
🔗 academic.oup.com/mbe/article/...
📷 Gavin Broad
@genomebiolevol.bsky.socialChen et al. show that a substantial fraction of predicted orphan genes lacks expression support, and they exhibit distinct sequence and evolutionary signatures from expressed orphans.
@genomebiolevol.bsky.socialAmoroso et al. scanned whole-genome samples of round-tailed horned lizards and modeled their evolutionary history, identifying regions where genetic content differed significantly between populations of the species.
@molbioevol.bsky.socialMontoliu-Nerin et al. discover a Mega-NUMT in Drosophila paulistorum genomes and speculate that it is maintained at relatively high prevalence in nature by balancing selection or due to a yet-undetermined function.
@molbioevol.bsky.social@haorancai.bsky.social @kgslab.bsky.social & @evodaveo.bsky.social show that genetic correlations are more environmentally stable when driven by polygenic background correlation across many loci, vs. a few large-effect pleiotropic outliers
@genomebiolevol.bsky.socialThe western bluebird is a cavity-nesting thrush that experienced historical population declines. @carlosesperanza.bsky.social @andrea-schreier.bsky.social et al. present the first high-quality reference genome for the species
🔗 academic.oup.com/gbe/article/...
📷 Peimeng Xu
