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Horizontal gene transfer, the movement of genetic materials across the normal mating barriers between organisms occurs frequently and contributes significantly to the evolution of both eukaryotic and prokaryotic genomes. However, few concurrent transfers of functionally related genes implemented in a pathway from eukaryotes to prokaryotes are observed. Here, we did phylogenetic analyses to support...
Previous studies have proposed that selection has been involved in the differentiation of human mitochondrial DNA (mtDNA) and climate was the main driving force. This viewpoint, however, gets no support from the subsequent studies and remains controversial thus far. To clarify this issue, a total of 237 complete mtDNA sequences belonging to autochthonous lineages from South Asia, Oceania, and East...
Pheromones are chemicals produced and detected by conspecifics to elicit social/sexual physiological and behavioral responses, and they are perceived primarily by the vomeronasal organ (VNO) in terrestrial vertebrates. Two large superfamilies of G protein-coupled receptors, V1rs and V2rs, have been identified as pheromone receptors in vomeronasal sensory neurons. Based on a computational analysis...
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