Testing the systematic status of Homalictus and Rostrohalictus with weakened cross-vein groups within Halictini(Hymenoptera:Halictidae)using low-coverage whole-genome sequencing  

作　　者：Dan Zhang Ze-Qing Niu A-Rong Luo Michael C.Orr Rafael R.Ferrari Jian-Feng Jin Qing-Tao Wu Feng Zhang Chao-Dong Zhu 

机构地区：[1]Key Laboratory of Zoological Systematics and Evolution,Insttute of Zoology,Chinese Academy of Sciences,Bejing,China [2]College of Biological Sciences,University of Chinese Academy of Sciences,Bejing,China [3]International College,University of Chinese Academy of Sciences,Bejing,China [4]Department of Entomology,College of Plant Protection,Nanjing Agricultural University,Nanjing,China [5]State Key Laboratory of Integrated Pest Management,Institute of Zoology,Chinese Academy of Sciences,Bejing,China

出　　处：《Insect Science》2022年第6期1819-1833,共15页昆虫科学（英文版）

基　　金：supported by the second Tibetan Plateau scientific expedition and research(STEP)program(2019QZKK05010605);the National Natural Science Foundation,China(31772487);funded by the National Natural Science Fund for Distinguished Yong Scholars(31625024);the grant(Y229YX5105)from the Key Laboratoryof Zoological Systematics and Evolution,Chinese Academy of Sciences;supported by National Natural Science Foundation of China(32070465);Rafael R.Ferrari was supported by the President's International Funding Initiative(2020PB0130);the National Natural Science Foundation of China(41761144068).

摘　　要：The halictid genus Lasioglossum,as one of the most species-rich bee groups with persistently contentious subgeneric boundaries,is one of the most challenging bee groups from a systematic standpoint.An enduring question is the relationship of La-sioglossum and Homalictus,whether all halictine bees with weakened distal wing ve-nation comprise one or multiple genera.Here,we analyzed the phylogenetic relation-ships among the subgroups within Lasioglossum s.l.based on thousands of single-copy orthologs and ultraconserved elements,which were extracted from 23 newly sequenced low-coverage whole genomes alongside a published genome(22 ingroups plus 2 out-groups).Both marker sets provided consistent results across maximum likelihood and coalescent-based species tree approaches.The phylogenetic and topology test results show that the Lasioglossum and Hemihalictus series are reciprocally monophyletic and Homa-lictus and Rostrohalictus are valid subgenera of Lasioglossum.Consequently,we lower Homalictus to subgenus status within Lasioglossum again,and we also raise Rostrohalic-tus to subgenus status from its prior synonymy with subgenus Hemihalictus.Lasioglossum przewalskyi is also transferred to the subgenus Hemihalictus.Ultimately,we redefine La-sioglossum to include all halictine bees with weakened distal wing venation.

关 键 词：APOIDEA Lasioglossum PHYLOGENOMICS SYSTEMATICS ultraconserved ele-ment universal single-copy ortholog 

分 类 号：Q96[生物学—昆虫学]