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Reproductive isolation arises during laboratory adaptation to a novel hot environment
BackgroundReproductive isolation can result from adaptive processes (e.g., ecological speciation and mutation-order speciation) or stochastic...
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Influence of Immune System Activation in Early Ontogenesis on Aggressiveness and Sexual Motivation in Adult Wistar Rats
AbstractStresses in early ontogenesis can influence anxiety-depressive, defensive and social behavior, as well as the immune and hormonal reactivity...
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The roles of sexual selection and sexual conflict in sha** patterns of genome and transcriptome variation
Sexual dimorphism is one of the most prevalent, and often the most extreme, examples of phenotypic variation within species, and arises primarily...
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Predaceous Diving Beetle Sexual Systems
Diving beetles have an impressively diverse array of morphological and behavioral attributes associated with sexual systems. These include anatomical...
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Chemical communication and its role in sexual selection across Animalia
Sexual selection has been studied as a major evolutionary driver of animal diversity for roughly 50 years. Much evidence indicates that competition...
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Automated content analysis as a tool to compare content in sexual selection research with examples of sexual selection in evolutionary biology textbooks: implications for teaching the nature of science
BackgroundWe used college-level evolution textbooks to examine the presentation of sexual selection research—a field with ongoing debates related to...
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Isolation and Purification of Viable PGCs from Mouse Embryos
In all organisms with sexual reproduction, sperm and oocytes derive from embryonic precursors termed primordial germ cells (PGCs) which pass on...
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Mechanisms of reproductive isolation among cryptic species in monogonont rotifers
The advent of molecular techniques has resulted in the discovery of previously unknown cryptic species in many organisms, including rotifers,...
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Sexual selection on a female copulatory device in an insect with nuptial gifts
AbstractMale genitalia are rapidly evolving structures, often driven by sexual selection to increase fertilisation success. Although sexual selection...
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Influence of the Rate of Changes in the COX1 Gene on Body Size and Sexual Selection in Carp Hybridization
AbstractThe influence of mtDNA cytochrome c -oxidase I gene fragment variability on body length has been studied in 12 species of cyprinids, which...
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The evolution of sexual dimorphism in Chondrichthyes: drivers, uncertainties, and future directions
Sexual dimorphisms are abundant in natural systems; however, their ecological and evolutionary significance have largely been neglected with respect...
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Timing of isolation from an enriched environment determines the level of aggressive behavior and sexual maturity in Siamese fighting fish (Betta splendens)
BackgroundTeleost fish are known to respond to environmental manipulation, which makes them an ideal model animal for testing relationships between...
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Roles of estrogen receptors during sexual reversal in Pelodiscus sinensis
BackgroundThe Chinese soft-shelled turtle, Pelodiscus sinensis , exhibits distinct sexual dimorphism, with the males growing faster and larger than...
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Sexual differentiation in human malaria parasites is regulated by competition between phospholipid metabolism and histone methylation
For Plasmodium falciparum , the most widespread and virulent malaria parasite that infects humans, persistence depends on continuous asexual...
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Sexual Differentiation of Aggressive Behavior in the Chicks of the Black-Headed Gull (Larus ridibundus, Laridae, Charadriiformes) in the Natural Environment
AbstractSexual differentiation of social behavior in gulls and its mechanisms remain unexplored during the pre-fledging period. We described the...
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Reproductive analysis of sexual interference and role of pollinators in sunnhemp: a late-acting self-incompatible crop
Sunnhemp ( Crotalaria juncea ), is a commercially important bast fibre crop that possesses late-acting self-incompatibility. Crops with hermaphrodite...
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Intraspecific divergence of sexual size dimorphism and reproductive strategies in a polytypic poison frog
Intraspecific variation in body size, both among populations and between sexes, is an important factor influencing life-history strategies. This...
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Reproduction-associated pathways in females of gibel carp (Carassius gibelio) shed light on the molecular mechanisms of the coexistence of asexual and sexual reproduction
Gibel carp ( Carassius gibelio ) is a cyprinid fish that originated in eastern Eurasia and is considered as invasive in European freshwater ecosystems....
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Characterization of sexual maturity-associated N6-methyladenosine in boar testes
BackgroundThe health and size of the testes are crucial for boar fertility. Testicular development is tightly regulated by epigenetics....
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Natural Hybridization and Reproductive Isolation
In this chapter, cases of natural hybridization between Ohomopterus species are reviewed, and the mechanisms of reproductive isolation are...