期刊
JOURNAL OF BIOMOLECULAR STRUCTURE & DYNAMICS
卷 33, 期 6, 页码 1239-1253出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/07391102.2014.941402
关键词
sex determination; phylogenetic analysis; Arthropoda; Phytoseiidae; Acari
资金
- Davies Fisher and Eckes Endowment in Biological Control
Little is known about the process of sex determination at the molecular level in species belonging to the subclass Acari, a taxon of arachnids that contains mites and ticks. The recent sequencing of the transcriptome and genome of the western orchard predatory mite Metaseiulus occidentalis allows investigation of molecular mechanisms underlying the biological processes of sex determination in this predator of phytophagous pest mites. We identified four doublesex-and-mab-3-related transcription factor (dmrt) genes, one transformer-2 gene, one intersex gene, and two fruitless-like genes in M. occidentalis. Phylogenetic analyses were conducted to infer the molecular relationships to sequences from species of arthropods, including insects, crustaceans, acarines, and a centipede, using available genomic data. Comparative analyses revealed high sequence identity within functional domains and confirmed that the architecture for certain sex-determination genes is conserved in arthropods. This study provides a framework for identifying potential target genes that could be implicated in the process of sex determination in M. occidentalis and provides insight into the conservation and change of the molecular components of sex determination in arthropods.
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