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Lineages differentiation and population structure of the light-vented bulbul Pycnonotus sinensis in China based on mitochondrial DNA and microsatellite analysis

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Integrative Zoology 2011年第4期6卷 387-398页

作者： Yuchun WU Hui LI Fasheng ZOU Yucheng HSU South China Institute of Endangered Animals GuangzhouChina Guangzhou Work Technical School for High School Students GuangzhouChina Institute of Natural Resources National Dong Hwa UniversityHualienTaiwanChina

The light-vented bulbul Pycnonotus sinensis is a small resident passerine that is found widely in central and south China,North Vietnam,and some East Asian islands,including Hainan,Taiwan and the Ryukyu *** subspecies status has been under considerable debate.A total of 10 subspecies have been proposed,but only 4 are widely recognized,including 1 continental taxon,***,and 3 insular subspecies:***,*** and *** mitochondrial DNA genes and 9 microsatellite loci were used to investigate the genetic divergence of this species,to identify the evolutionary status of 2 insular subspecies(*** and ***)and to uncover probable historical causes that shaped *** results reveal that *** has diverged significantly from the other 2 subspecies because of a substantial time of isolation for populations on Taiwan *** was no significant genetic differentiation between *** and *** notable morphological difference in *** might be attributed to a rapid,recent adaptation to the tropical environment of Hainan *** low genetic divergence between *** and *** might result from a recent divergence or gene flow between *** insular subspecies of light-vented bulbul populations might have diverged recently from their continental relatives through a complex evolution history owing to island isolation,ecological isolation,and possibly even *** *** and *** should be considered important conservation units because of their morphological and genetic distinctiveness.

关键词： island isolation microsatellites mitochondrial DNA Pycnonotus sinensis subspecies divergence

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Male pheromones and their reception by females are co-adapted to affect mating success in two subspecies of brown rats

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Current Zoology 2021年第4期67卷 371-382页

作者： Yao-Hua Zhang Lei ZHAO Shi-Hui Fu Zhen-Shan Wang Jian-Xu Zhang State Key Laboratory of Integrated Management of Pest Insects and Rodents in Agriculture Institute of ZoologyChinese Academy of SciencesBeijing 100101China CAS Center for Excellence in Biotic Interactions University of Chinese Academy of SciencesBeijing 100049China College of Life Science Hebei UniversityHebei ProvinceBaoding 071002China

Pheromonal communication plays a key role in the sociosexual behavior of *** coadaptation between pheromones and chemosensory systems has been well illustrated in insects but poorly investigated in rodents and other *** aimed to investigate whether coadaptation between male pheromones and female reception might have occurred in brown rats Rattus *** recently reported that major urinary protein(MUP)pheromones are associated with male mating success in a brown rat subspecies,***(Rnh).Here,we discovered that MUPs were less polymorphic and occurred at much lower concentrations in males of a parapatric subspecies,***(Rnc),than in Rnh males,and found no association between pheromones and paternity ***,the observation of Rnc males that experienced chronic dyadic encounters and established dominance-submission relationships revealed that the dominant males achieved greater mating success than the subordinate males,but their MUP levels did not differ by social *** findings suggest that male mating success in Rnc rats is related to social rank rather than to pheromone levels and that low concentration of MUPs might not be a reliable signal for mate choice in Rnc rats,which is different from the findings obtained in Rnh *** addition,compared with Rnh females,Rnc females exhibited reduced expression of pheromone receptor genes,and a lower number of vomeronasal receptor neurons were activated by MUP pheromones,which imply that the female chemosensory reception of pheromones might be structurally and functionally coadapted with male pheromone signals in brown rats.

关键词： coevolution major urinary protein social rank subspecies divergence vomeronasal reception

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