@csengepetak.bsky.social @jcbnunez.bsky.social et al. provide the first evidence for regions of low recombination in the purple sea urchin genome, several of which display genomic signatures of structural variants.

@csengepetak.bsky.social @jcbnunez.bsky.social et al. provide the first evidence for regions of low recombination in the purple sea urchin genome, several of which display genomic signatures of structural variants.
Hale, @coxevolab.bsky.social et al. find that maleβfemale expression imbalance on the X chromosome is widespread across phrynosomatid lizards.
π academic.oup.com/mbe/article/...
π· Matthew Hale
This study is featured on the cover of the October issue of MBE.
Generally, introns shorter than βΌ30β bp are considered absent from animals. Hadjez et al. show that such ultra-short introns evolved independently at least twice in animals, in two parasitic lineages.
@rom12relle.bsky.social @johnlees.bacpop.org & Chindelevitch present kamino, a reference- and alignment-free method that rapidly builds amino acid phylogenomic alignments directly from proteomes.
Tian & Meyer report alternatively spliced genes with functions related to microtubule organization and neural development, and several genes showing isoform usage strongly associated with behavioral laterality.
π academic.oup.com/gbe/article/...
ποΈ Weiwei Li
@euantheyoung.bsky.social et al. show that the role of life-history trade-offs in shaping estrogen receptor-positive breast cancer risk in European populations appears, at most, small.
Nojiri, @susaki-lab.bsky.social et al. compared the genomes of the immortal Hydra vulgaris and the aging Hydra oligactis. Results suggest that extended lifespan may reflect differences in how core biological processes are organized.
Laumer, @prashantpsharma.bsky.social et al. examined the incidence of Pax family genes across chelicerate phylogeny and interrogated the expression and function of Pax2 and Pax6 homologs in the daddy-longlegs Phalangium opilio.
Aguado et al. investigate the salivary proline-rich protein gene family across 27 primate species to test whether dietary ecology has shaped the evolution of this locus.
@pavelpayne.bsky.social et al. show that bacterial herd immunity can promote homologous recombination, suggesting bacterial immune systems can shape molecular evolution not only by blocking infection but also by regulating genetic exchange
Yerka et al. assembled the first Johnsongrass genome, revealing an evolutionary history of genome instability, including the loss of distinct parental subgenomes.
Sociality has evolved repeatedly across the tree of life. @meganbarkdull.bsky.social & @corriemoreau.bsky.social review how insect sociality both arises from and influences genome evolution.
π academic.oup.com/gbe/article/...
π· Philipp Hoenle
The October 2026 issue of MBE has launched - check in throughout the month for your regular dose of discoveries, methods, protocols, and reviews in molecular evolution.
The October 2026 issue of GBE is now live - new articles, methods, and genome reports will be published throughout the month, so visit our website regularly.
The southern corn rootworm is a leaf beetle native to N. America that infests >50 crops. Coates et al. generated a chromosome-level reference assembly for a male, including the first assembled supernumerary B chromosome for a rootworm.
Heenkenda et al. inferred a population history of the rhesus macaque with substantial structure between Chinese and Indian populations, with a split time of βΌ140k generations ago from an ancestral pop. of βΌ65k individuals
Noly et al. reveal that carbon metabolism unexpectedly modulates the haploid-diploid cycle of fission yeasts, suggesting that diversification of core metabolic functions may contribute to adaptation to environments with distinct sugar compositions
@michid73.bsky.social et al. show that Norwegian kveik forms a distinct and early branch among European brewing yeasts, originating from ancestral populations 4,000 to 8,000 years ago.
Diepeveen, BellΓ©s & @mikkelschierup.bsky.social analysed T2T primate genomes to show that several X chr. gene families evolve under strong positive selection, whereas Y chr. families predominantly show purifying selection.
LaizΓ©, @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.