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Comparative transcriptomics highlights convergent evolution of energy metabolic pathways in group-living spiders

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Zoological Research 2021年第2期42卷 195-206页

作者： Han Yang Bin Lyu Hai-qiang Yin shu-qiang li Key Laboratory of Zoological Systematics and Evolution Institute of ZoologyChinese Academy of SciencesBeijing 100101China Chengdu Institute of Biology Chinese Academy of SciencesChengduSichuan 610041China College of life Science Hunan Normal UniversityChangshaHunan 410081China College of life Sciences University of Chinese Academy of SciencesBeijing 100049China

Although widely thought to be aggressive, solitary,and potentially cannibalistic, some spider species have evolved group-living behaviors. The distinct transition provides the framework to uncover groupliving evolution. Here, we conducted a comparative transcriptomic study and examined patterns of molecular evolution in two independently evolved group-living spiders and twelve solitary species. We report that positively selected genes among groupliving spider lineages are significantly enriched in nutrient metabolism and autophagy pathways. We also show that nutrient-related genes of group-living spiders convergently experience amino acid substitutions and accelerated relative evolutionary rates. These results indicate adaptive convergence of nutrient metabolism that may ensure energy supply in group-living spiders. The decelerated evolutionary rate of autophagy-related genes in group-living lineages is consistent with an increased constraint on energy homeostasis as would be required in a group-living environment. Together, the results show that energy metabolic pathways play an important role in the transition to group-living in spiders.

关键词： Autophagy Cannibalism Convergent Group-living Nutrient Spider

Cenozoic Tethyan changes dominated Eurasian animal evolution and diversity patterns

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Zoological Research 2022年第1期43卷 3-13页

作者： Zhe Zhao Zhong-E Hou shu-qiang li Key Laboratory of Zoological Systematics and Evolution Institute of ZoologyChinese Academy of SciencesBeijing 100101China

Cenozoic tectonic evolution in the Tethyan region has greatly changed the landforms and environment of Eurasia,driving the evolution of animals and greatly affecting the diversity patterns of Eurasian *** combining the latest Tethyan paleogeographic models and some recently published Eurasian zoological studies,we systematically summarize how tectonic evolution in the Tethyan region has influenced the evolution and diversity patterns of Eurasian *** convergence of continental plates,closure of Tethys Sea,and Tethyan sea-level changes have directly affected the composition and spatial distribution of Eurasian animal *** topographic and environmental changes caused by Tethyan tectonics have determined regional animal diversity in Eurasia by influencing animal origin,dispersal,preservation,diversification,and *** ecological transformations resulted in the emergence of new habitats and niches,which promoted animal adaptive evolution,specialization,speciation,and *** highlight that the Cenozoic tectonic evolution of the Tethyan region has been responsible for much of the alteration in Eurasian animal distribution and has been an essential force in shaping organic ***,we generalize a general pattern that Tethyan geological events are linked with Eurasian animal evolution and diversity dynamics.

关键词： Tethys Mediterranean Biogeography Zoogeography Phylogeny

Integrative taxonomy of Leptonetela spiders (Araneae, Leptonetidae), with descriptions of 46 new species

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Zoological Research 2017年第6期38卷 321-448页

作者： Chun-Xia Wang Xin Xu shu-qiang li Institute of Zoology Chinese Academy of Sciences Beijing 100101 China Southeast Asia Biodiversity Research Institute Chinese Academy of Sciences Yezin Nay Pyi Taw 05282 Myanmar College of life Sciences Hunan Normal University Changsha Hunan 410006 China University of Chinese Academy of Sciences Beijing 100049 China

Extreme environments, such as subterranean habitats, are suspected to be responsible for morphologically inseparable cryptic or sibling species and can bias biodiversity assessment. A DNA barcode is a short, standardized DNA sequence used for taxonomic purposes and has the potential to lessen the challenges presented by a biotic inventory. Here, we investigate the diversity of the genus Leptonetela Kratochvil, 1978 that is endemic to karst systems in Eurasia using DNA barcoding. We analyzed 624 specimens using one mitochondrial gene fragment （COl）. The results show that DNA barcoding is an efficient and rapid species identification method in this genus. DNA barcoding gap and automatic barcode gap discovery （ABGD） analyses indicated the existence of 90 species, a result consistent with previous taxonomic hypotheses, and supported the existence of extreme male pedipalpal tibial spine and median apophysis polymorphism in Leptonetela species, with direct implications for the taxonomy of the group and its diversity. Based on the molecular and morphological evidence, we delimit and diagnose 90 Leptonetela species, including the type species Leptonetela kanellisi （Deeleman-Reinhold, 1971）. Forty-six of them are previously undescribed. The female of Leptonetela zhai Wang ＆ li, 2011 is reported for the first time. Leptonetela tianxinensis （Tong ＆ li, 2008） comb. nov. is transferred from the genus Leptoneta Simon, 1872; the genus Guineta lin ＆ li, 2010 syn. nov. is a junior synonym of Leptonetela; Leptonetela gigachela （lin ＆ li, 2010） comb. nov. is transferred from Guineta. The genus Sinoneta LJn ＆ li, 2010 syn. nov. is a junior synonym of Leptonetela; Leptonetela notabilis （lin ＆ li, 2010） comb. nov. and Leptonetela sexdigiti （lin ＆ li, 2010） comb. nov. are transferred from Sinoneta; Leptonetela sanchahe Wang ＆ li nom. nov. is proposed as a replacement name for Sinoneta palmata （Chen et a 2010） because Leptonetela palmata is preoccupied.

关键词： DNA barcoding Phylogeny Phenotype Species delineation

Taxonomic notes on Leptonetidae(Arachnida,Araneae)from China,with descriptions of one new genus and eight new species

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Zoological Research 2020年第6期41卷 684-704页

作者： Chun-Xia Wang shu-qiang li Wen-Hui Zhu Hebei Key Laboratory of Animal Diversity College of Life ScienceLangfang Normal UniversityLangfangHebei 065000China Institute of Zoology Chinese Academy of SciencesBeijing 100101China life Science College Shenyang Normal UniversityShenyangLiaoning 110034China

Species of the spider family Leptonetidae Simon,1890 from China are revised based on molecular and morphological data analyses.A new genus,Jingneta Wang&li ***.,is erected,with Leptoneta cornea Tong&li,2008 as the type ***-two Chinese species previously assigned to the genus Leptoneta Simon,1872 are revised,with eight transferred to Falcileptoneta Komatsu,1970,seven transferred to Jingneta ***.,five transferred to Leptonetela Kratochvil,1978,and one species each transferred to Longileptoneta Seo,2015 and Masirana Kishida,*** new species are described:i.e.,Falcileptoneta shuanglong Wang&li ***.(♂),Jingneta caoxian Wang&li ***.(♂♀),*** Wang&li ***.(♂♀),Longileptoneta gutan Wang&li ***.(♂♀),*** Wang&li ***.(♂♀),*** Wang&li ***.(♂♀),*** Wang&li ***.(♂),and *** Wang&li ***.(♂♀).In total,127 leptonetid species from six genera are documented from China:nine species of Falcileptoneta,nine species of Jingneta ***.,101 species of Leptonetela,six species of Longileptoneta,one species of Masirana,and one species of Rhyssoleptoneta Tong&li,2007.

关键词： Asia Morphology New combination Taxonomy

Nine new species of the spider genus Stedocys (Araneae, Scytodidae) from China and Thailand

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Zoological Research 2017年第5期38卷 215-242页

作者： Jiang-Lang Wu Yu-Fa Luo shu-qiang li Southeast Asia Biodiversity Research Institute Chinese Academy of Sciences Yezin Nay Pyi Taw 05282 Myanmar Institute of Zoology Chinese Academy of Sciences Beijing 100101 China School of life and Environment Sciences Gannan Normal University Ganzhou Jiangxi 341000 China University of Chinese Academy of Sciences Beijing 100049 China

Nine new species of the genus Stedocys Ono, 1995 are described： Stedocys gaolingensis Wu ＆ lisp. n. （♂♀, Guangxi）, S. huangniuensis Wu ＆ lisp. n. （♀, Guangxi）, S. ludiyanensis Wu ＆ lisp. n. （♂♀, Guangxi）, S. matuoensis Wu ＆ lisp. n. （♀, Guangxi）, S. pulianensis Wu ＆ lisp. n. （♂, Guangxi）, S. shilinensis Wu ＆ lisp. n. （♂♀, Hainan）, S. xianrenensis Wu ＆ li sp. n. （♂♀, Guangxi）, S. xiangzhouensis Wu ＆ li sp. n. （♂♀, Guangxi） from China, and S. zhaoi Wu ＆ li sp. nov. （♂♀, Kanchanaburi） from Thailand. Diagnoses of nine new species are provided. DNA barcodes for six new species are documented for future use and as proof of molecular differences between these species.

关键词： Taxonomy Morphology Diagnosis Biodiversity Caves

Tip of the iceberg:species diversity of Pholcus spiders(Araneae,Pholcidae)in the Changbai Mountains,Northeast China

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Zoological Research 2021年第3期42卷 267-271页

作者： Zhi-Yuan Yao Xiang Wang shu-qiang li College of life Science Shenyang Normal UniversityShenyangLiaoning 110034China Institute of Zoology Chinese Academy of SciencesBeijing 100101China liaoning Key Laboratory of Evolution and Biodiversity ShenyangLiaoning 110034China liaoning Key Laboratory for Biological Evolution and Agricultural Ecology ShenyangLiaoning 110034China

Despite 250 years of taxonomic classification and over 1.2 million species already catalogued,known species diversity is only a small part of true species diversity on Earth,and thus,the known species are only the tip of ***,we investigated the genus Pholcus Walckenaer,1805 of the family Pholcidae ***,1850 in the Changbai Mountains,Northeast China,which provides an excellent case of high species ***,only 14 endemic Pholcus spiders,all belonging to the *** species group,and two introduced species *** Gertsch,1937 and *** Kulczyński,1901 from the *** species group,have been recorded from this *** study confirmed 11 new species of the *** species group based on morphology and three methods of molecular species delimitation:*** Yao&li,***.,*** Yao&li,***.,*** Yao&li,***.,*** Yao&li,***.,*** Yao&li,***.,*** Yao&li,***.,*** Yao&li,***.,*** Yao&li,***.,*** Yao&li,***.,*** Yao&li,***.,and *** Yao&li,*** study brings the fauna of the *** species group from the Changbai Mountains to 25 species,approximately two times more than previously known,which could indicate that species diversity in the area is underestimated for all arthropod fauna.

关键词： sp.nov. Northeast Mountains

Three new genera of the family Nesticidae(Arachnida: Araneae) from Tibet and Yunnan, China

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Zoological Systematics 2015年第2期40卷 179-190页

作者： Francesco Ballarin shu-qiang li Institute of Zoology Chinese Academy of Sciences

Three new genera of the spider family Nesticidae, Hamus gen. nov., Nescina gen. nov. and Wraios gen. nov., are reported. Three new species, Hamus bowoensis sp. nov., Nescina minuta sp. nov. and Wraios longiembolus sp. nov., showing remarkable characters in palpal and epigynal morphology, are described based on specimens collected in Tibet and Yunnan, China. All the type specimens are deposited in the Institute of Zoology, Chinese Academy of Sciences （IZCAS） in Beijing.

关键词： Nesticids taxonomy type diagnosis etymology.

Challenging Wallacean and linnean shortfalls:Ectatosticta spiders(Araneae,Hypochilidae)from China

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Zoological Research 2021年第6期42卷 792-795页

作者： Jiang-Ni li Xun-You Yan Ye-Jie lin shu-qiang li Hai-Feng Chen Hebei Key Laboratory of Animal Diversity College of Life ScienceLangfang Normal UniversityLangfangHebei 065000China Institute of Zoology Chinese Academy of SciencesBeijing 100101China

Ectatosticta spiders from the Qinghai-Tibet Plateau were *** molecular and morphological data identified 16 putative species,including seven new species:Ectatosticta wenshu lin&*** ***.,Ectatosticta baima lin&*** ***.,Ectatosticta helii lin&*** ***.,Ectatosticta shaseng lin&*** ***.,Ectatosticta puxian lin&*** ***.,Ectatosticta qingshi lin&*** ***.,and Ectatosticta baixiang lin&*** *** increase in the number of Ectatosticta species from a single species in 2008 to 16 in the current study highlights the linnean shortfall in *** previously known distribution of Ectatosticta spiders was from one locality in Shaanxi and is now expanded to the east and south of the Qinghai-Tibet Plateau.

关键词： sp.nov. Wallace locality

Europe ***:Pholcus(Araneae,Pholcidae)from Yanshan-Taihang Mountains confirms uneven distribution of spiders in Eurasia

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Zoological Research 2022年第4期43卷 532-534页

作者： Ying Lu Chang Chu Xiao-Qing Zhang shu-qiang li Zhi-Yuan Yao College of life Science Shenyang Normal UniversityShenyangLiaoning 110034China Institute of Zoology Chinese Academy of SciencesBeijing 100101China liaoning Key Laboratory of Evolution and Biodiversity ShenyangLiaoning 110034China liaoning Key Laboratory for Biological Evolution and Agricultural Ecology ShenyangLiaoning 110034China

DEAR EDITOR,Morphological and molecular data were used to study 35 species of the Pholcus phungiformes species group from the Yanshan-Taihang Mountains in *** uneven distribution pattern of spiders in Eurasia is discussed,with a focus on Europe and *** covers approximately 10.18 million km2 in western Eurasia,while China covers about 9.6 million km2 in the *** to their relative positions to each other and similar land areas,spider species richness in Europe and China is comparable(li,2020).

关键词： China distribution Mountains