The sequences of mitochondrial ND2, CO2, and 16S rRNA genes and nuclear ITPR gene were obtained from 22 samples of 5 Apis species from China. The characteristics of the sequences and the pairwise distances among species were analyzed. Phylogenetic trees were reconstructed for Apis species using maximum parsimony, neighbor-joining and maximum likelihood methods together with the sequences of the other 4 Apis species downloaded from GenBank. Results supported that Apis species were divided into three major clusters: dwarf bees (A. florea and A. andreniformis), giant bees (A. dorsata and A. laboriosa), and cavity-nesting bees (A. mellifera, A. cerana, A. koschevnikovi, A. nigrocinta, and A. nuluensis). The dwarf honey bees were confirmed as basal lineage. Our study also revealed a high level of genetic divergence between A. dorsata from Hainan Island and China mainland.
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http://dx.doi.org/10.3724/sp.j.1005.2012.01057 | DOI Listing |
Plant Biol (Stuttg)
January 2025
Grupo de Investigación en Ecología de la Polinización, Laboratorio Ecotono, INIBIOMA (CONICET-Universidad Nacional del Comahue), San Carlos de Bariloche, Río Negro, Argentina.
Plant reproduction is influenced not only by individual flower characteristics but also by the arrangement of flowers within inflorescences. In bee-pollinated plants with protandrous flowers in vertical acropetal inflorescences - where male fertile flower structures mature before female ones and basal flowers open first (i.e.
View Article and Find Full Text PDFPathogens
January 2025
Biology Department, University of Massachusetts Boston, Boston, MA 02125, USA.
Bumblebees, the most important wild pollinators in both agricultural and natural ecosystems, are declining worldwide. The global decline of bumblebees may threaten biodiversity, pollination services, and, ultimately, agricultural productivity. Several factors, including pesticide usage, climate change, habitat loss, and species invasion, have been documented in the decline of bumblebee species, but recent studies have revealed the dominating role of pathogens and parasites over any of these causes.
View Article and Find Full Text PDFInsects
January 2025
Yunnan Provincial Engineering and Research Center for Sustainable Utilization of Honeybee Resources, Eastern Bee Research Institute, College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China.
Honey bees transform nectar into honey through a combination of physical and chemical processes, with the physical process primarily involving the evaporation of excess water to concentrate the nectar. However, the factors affecting evaporation efficiency, such as evaporation duration, cell type, and bee species, remain incompletely understood. This study aimed to examine how these factors affect nectar evaporation efficiency during honey production.
View Article and Find Full Text PDFInsects
January 2025
Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand.
The four honeybee species native to Cambodia-, , , -play a vital role in ecosystem health and agricultural productivity through their pollination activities. Beekeeping in Cambodia has primarily developed around the introduced species . However, it remains underdeveloped compared to neighboring countries, with wild honey collection continuing to play a significant role.
View Article and Find Full Text PDFInsects
December 2024
LIBRe-Laboratory for Integrative Biodiversity Research, Finnish Museum of Natural History, University of Helsinki, 00100 Helsinki, Finland.
The native biodiversity of oceanic islands is threatened by human-driven disturbance and by the growing number of species introductions which often interfere with natural ecological processes. Here, we aim to evaluate the effect of anthropogenic disturbance on plant-pollinator interactions in the native forest communities of an oceanic island (Terceira, Azores, Portugal). We found that native species predominated in preserved sites compared to disturbed ones and that the extant plant-pollinator interactions were mostly dominated by generalist species.
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