Published: Jan. 1, 2024
Language: Английский
Proceedings of the National Academy of Sciences, Journal Year: 2024, Volume and Issue: 121(46)
Published: Nov. 4, 2024
Caste differentiation involves many functional traits that diverge during larval growth and metamorphosis to produce adults irreversibly adapted reproductive division of labor. Investigating developmental is important for general biological understanding has increasingly been explored social phenotypes in parallel from similar genotypes. Here, we use Monomorium pharaonis ants investigate the extent which canalized worker development can be shifted toward gyne (virgin-queen) by juvenile hormone (JH) treatment. We show excess JH activate gyne-biased workers so wing-buds, ocelli, antennal genital imaginal discs, flight muscles, gyne-like fat bodies brains emerge after pupation. However, ovary remained unresponsive treatment, indicating JH-sensitive germline sequestration happens well before somatic differentiation. Our findings reveal qualitative restrictions treatment redirect these constraints are independent body size. corroborate a key inducing caste but this process asymmetric higher colony-level versus superorganisms as defined century ago Wheeler. quantified gene expression changes response throughout identified set genes responsible emergence traits. study suggests gonadotropic role maturation individual level solitary insects colony an evolutionary-derived highly polygynous superorganism like pharaoh ant.
Language: Английский
Citations
3
Insects, Journal Year: 2024, Volume and Issue: 15(12), P. 957 - 957
Published: Dec. 2, 2024
Using next-generation sequencing data, the complete mitogenomes of six species from genus Tapinoma were assembled. This study explores mitochondrial genomes species, among them five nigerrimum complex, comparing with each other and Dolichoderinae subfamily to understand their evolutionary relationships evolution. contain typical set 13 protein-coding genes, two ribosomal RNA 22 transfer RNAs, A + T-rich control region. phylogenetic analysis using gene sequences available supports monophyletic nature Tapinoma, T. complex forming a well-supported clade. Key findings include genetic traits unique such as start codon in atp8 stop cox1, distinguishing species. Additionally, rearrangement involving tRNA-Trp, tRNA-Cys, tRNA-Tyr was found exclusively suggesting potential marker for genus.
Language: Английский
Citations
1
bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown
Published: Nov. 15, 2024
Abstract The harvester ant genus Pogonomyrmex is common in arid regions of North America, South and Hispaniola. Here, we use ultraconserved elements (UCEs) to infer the most comprehensive phylogeny date. Our inferred topology largely supports previously hypothesized evolutionary relationships species groups. divergence dating analysis substantially pushes back age both Pogonomyrmecini tribe, suggesting an early Eocene origin for . We that likely originated within Pacific dominion ecoregion Northern America. (excluding mayri clade) adapted cooler drier climates middle Eocene. spread America late Eocene, aided by ephemeral volcanic islands Panama Arc. A smaller group dispersed Mesoamerica Oligocene Hispaniola Miocene, out Mesoamerica. results suggest adaptations environments allowed diversify Americas were actively becoming due orogeny other geologic processes.
Language: Английский
Citations
0
Published: Jan. 1, 2024
Language: Английский
Citations
0