English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

In honeybees, the mechanism of sex determination depends on genetic variation at the  complementary sex determiner  ( CSD ) locus, which has a large allelic diversity. In this study, we examined the population genetic structure and genetic diversity within the highly variable region ( HVR ) of  CSD  in five  Apis mellifera  subspecies, in addition to Buckfast and unknown mixed ancestry bees. We sequenced  CSD  in 329 drones, 146 from Algeria ( A. m. intermissa  and  A. m. sahariensis  subspecies) and 183 from Europe ( A. m. ligustica ,  A. m. carnica ,  A. m. mellifera  subspecies, Buckfast samples, and individuals of unknown mixed ancestry). A total of 119 nucleotide haplotypes were detected. These corresponded to 119 protein haplotypes, of which 81 were new. The analysis of these haplotypes showed that  HVR  diversity levels were comparable with those in other populations of honeybee worldwide. Paradoxically, this high level of diversity at the locus did not allow for a separation of the samples according to their subspecies origin, which suggested either an evolutionary convergence or a conservation of alleles across subspecies, and an absence of genetic drift. Our results can be used to provide more information about the  CSD  diversity to include in breeding programs of honeybee populations.

apidologie

Genetic diversity and population genetic structure analysis of Apis mellifera subspecies in Algeria and Europe based on complementary sex determiner (CSD) gene