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Non-random mating behaviour between diverging littoral and pelagic three-spined sticklebacks in an invasive population from Upper Lake Constance.
R Soc Open Sci
January 2025
Fisheries Research Station Baden-Württemberg, Argenweg 50/1, 88085 Langenargen, Germany.
Adaptive divergence and increased genetic differentiation among populations can lead to reproductive isolation. In Lake Constance, Germany, a population of invasive three-spined stickleback () is currently diverging into littoral and pelagic ecotypes, which both nest in the littoral zone. We hypothesized that assortative mating behaviour contributes to reproductive isolation between these ecotypes and performed a behavioural experiment in which females could choose between two nest-guarding males.
View Article and Find Full Text PDFGenetic Variation in Male Mate Choice for Large Females in .
Ecol Evol
January 2025
Department of Biology, Barnard College Columbia University New York New York USA.
Males in many species show courtship and mating preferences for certain females over others when given the choice. One of the most common targets of male mate choice in insects is female body size, with males preferring to court and mate with larger, higher-fecundity females and investing more resources in matings with those females. Although this preference is well-documented at the species level, less is known about how this preference varies within species and whether there is standing genetic variation for male mate choice within populations.
View Article and Find Full Text PDFMulti-omics analysis reveals the evolution, function, and regulatory mechanisms of SPF pheromones in Anurans.
Commun Biol
December 2024
Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, Sichuan, China.
Pheromones play a pivotal role in chemical communication across various taxa, with protein-based pheromones being particularly significant in amphibian courtship and reproduction. In this study, we investigate the Emei music frog (Nidirana daunchina), which utilizes both acoustic and chemical signals for communication. Base on a de novo assembled genome of a male Emei music frog, we identify substantial expansion in four pheromone-related gene families associated with chemical communication.
View Article and Find Full Text PDFDisruption of the odorant receptor co-receptor (Orco) reveals its critical role in multiple olfactory behaviors of a cosmopolitan pest.
Insect Biochem Mol Biol
December 2024
State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops, College of Life Science, Haixia Institute of Science and Technology, Fujian Agriculture and Forestry University, Fuzhou, 350002, China; Ministerial and Provincial Joint Innovation Centre for Safety Production of Cross-Strait Crops, Fujian Agriculture and Forestry University, Fuzhou, 350002, China; Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fuzhou, 350002, China. Electronic address:
The olfactory system of insects plays a pivotal role in multiple, essential activities including feeding, mating, egg laying, and host localization. The capacity of odorant receptors to recognize odor molecules relies on odorant receptor co-receptors forming heterodimers. Here we report the successful engineering a homozygous mutant strain of diamondback moth (Plutella xylostella) in which the odorant receptor co-receptor PxOrco was silenced using CRISPR/Cas9.
View Article and Find Full Text PDFHox-determined appendage regeneration restores cockroach courtship rituals.
Sci China Life Sci
December 2024
Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied Technology, Guangzhou Key Laboratory of Insect Development Regulation and Application Research, Institute of Insect Science and Technology, School of Life Sciences, South China Normal University, Guangzhou, 510631, China.
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