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Honey bee reproductive behavior involves a complicated mating system that embodies a number of factors, including environmental and human-induced factors. Controlled breeding in isolated mating stations is a prerequisite to maintain the genetic resources of honey bees through natural mating. The concept of controlled mating is a challenge in most beekeeping operations due to its low mating success rate. Therefore, a detailed investigation into the suitability of isolated mating stations is of interest. Thus, we bred two subspecies of honey bees ( and L.) in isolated mating stations (island) from 2021 to 2023 and in an open breeding station in 2023. Our results demonstrate that the highest percentage of the mating success rate in isolated mating stations was recorded in the Wido Island, which had the highest percentage of bare land, coniferous forests, deciduous forests, fields, and mixed forests. The mating success rate was higher in the summer and spring for and , respectively. The mating success rate was higher in open mating compared to controlled mating (Island) and did not vary between pure-breeding and cross-breeding lines. Our findings suggested that mating stations with mixed forest and fields are potential sites for the successful breeding of honey bees.
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http://dx.doi.org/10.3390/biology13060444 | DOI Listing |
3 Biotech
September 2025
Department of Agricultural Biotechnology, Anand Agricultural University, Anand, Gujarat 388110 India.
Unlabelled: Brinjal ( L.) is a key solanaceous vegetable in Asian and African countries, rich in minerals and vitamins in tropical diets. This study evaluated the variability and genetic diversity of 94 genotypes grown in an Augmented Randomized Complete Block Design during (monsoon-winter) 2023-24.
View Article and Find Full Text PDFTheory and past experimental work suggest that as males age, the strength of their mate preference should decrease. However, the empirical work investigating this question has primarily been conducted in insects that have very short life spans and often live for just a single mating season. This leaves a gap in our understanding of the relationship between male mate preference and age across taxa, as age can conflate with other ecological changes in a single mating season.
View Article and Find Full Text PDFStem Cell Reports
August 2025
Department of Molecular Genetics, Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan. Electronic address:
Despite growing interest in space exploration, the effects of spaceflight on stem cells remain largely unknown. Damages to germline cells are especially crucial, as spaceflight poses risks to gametogenesis, with abnormalities observed in multiple species. While embryonic stem (ES) cells show genomic instability after space exposure and have not yet produced offspring, this study demonstrates successful offspring production from cryopreserved mouse spermatogonial stem cells (SSCs) stored on the International Space Station for 6 months.
View Article and Find Full Text PDFEvol Appl
August 2025
National Genomics Center for Wildlife and Fish Conservation, Rocky Mountain Research Station U.S. Department of Agriculture, Forest Service Missoula Montana USA.
Island populations are at heightened risk of inbreeding due to reduced mating opportunities with unrelated conspecifics. Extensive inbreeding can result in inbreeding depression (reduced fitness of individuals with related parents). Alexander Archipelago wolves () are a geographically isolated subspecies that occur in the Southeast Alaskan panhandle, USA, and coastal British Columbia, Canada.
View Article and Find Full Text PDFBiol Reprod
August 2025
Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, China.
Introduction: The impact of obesity on pregnancy outcomes and offspring health has received increasing attention. Semaglutide have been shown to have significant effects on weight management. This study aims to evaluate whether Pre-pregnancy Semaglutide Intervention (PpSI) improves maternal metabolic disorders before and during pregnancy, affects placental function and fetal hypothalamic neuropeptide expression during late-gestation and its underlying mechanisms.
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