Comparison of the mitochondrial genomes of three geographical strains of indicates high genetic diversity in the black giant honeybee (Hymenoptera: Apidae).

is the largest honeybee that lives mainly on cliff faces, with strong migratory ability. In this study, we firstly sequenced and assembled two complete mitochondrial genomes of isolated from two distant locations in China (Chongqing and Shangri-La regions). Combined with the published mitochondrial genome of from Nepal, comparative genomic analyses were conducted to gain insight into the genetic diversity of giant honeybees from different geographical distributions.

SilkPathDB: a comprehensive resource for the study of silkworm pathogens.

Unlabelled: Silkworm pathogens have been heavily impeding the development of sericultural industry and play important roles in lepidopteran ecology, and some of which are used as biological insecticides. Rapid advances in studies on the omics of silkworm pathogens have produced a large amount of data, which need to be brought together centrally in a coherent and systematic manner. This will facilitate the reuse of these data for further analysis.

[Pathogenicity and genetic divergence of two isolates of microsporidia Nosema bombycis].

Microsporidia Nosema bombycis is a fungal pathogen that causes epidemic pebrine disease in Bombyx mori. Two N. bombycis isolates were obtained from two areas in China and showed different pathogenicity after Spodoptera frugiperda Sf9 cell cultivation.

[Advances of transposable element in genome of protozoa parasite].

Transposable elements are important factors to cause genetic variation and recombination, which are widely spread in eukaryotic organisms. Object to the increasing numbers of transposable elements in protozoa genome, this review focus on the types and genomic distributions of transposable elements in newly completed genome of protozoa parasite, mainly including Trypanosoma, Leishmania, microsporidia, Amoebozoa. The LINE and SINE elements are predominated in protozoa genome, followed by the DNA transposons and LTR retrotransposons.

Survey of long terminal repeat retrotransposons of domesticated silkworm (Bombyx mori).

Long terminal retrotransposons are major components of eukaryotic transposable elements. We have surveyed the long terminal repeats (LTR) retrotransposons of domesticated silkworm (Bombyx mori) by mining the data produced by Bombyx mori Genome Sequencing Project. At least 29 separate families of LTR retrotransposons are identified in this survey, comprising of 11.