8 Works

Data from: A new Cretaceous genus of xyelydid sawfly illuminating nygmata evolution in Hymenoptera

Wang Mei, Alexandr P. Rasnitsyn, Chungkun Shih & Dong Ren
Background: Nygmata are prominent glandular structures on the wings of insects. They have been documented in some extant insects, including several families of Neuroptera and Mecoptera, the majority of Trichoptera, and a few of the hymenopteran Symphyta. However, because nygmata are rarely preserved in compression fossils, their early development and evolution are still enigmatic. For example, the only documented nygmata in the Hymenoptera are on the forewings of the Triassic xyelids Asioxyela paurura and Madygenius...

Data from: The first flea with fully distended abdomen from the Early Cretaceous of China

Taiping Gao, Chungkun Shih, Alexandr P. Rasnitsyn, Xing Xu, Shuo Wang & Dong Ren
Background: Fleas, the most notorious insect ectoparasites of human, dogs, cats, birds, etc., have recently been traced to its basal and primitive ancestors during the Middle Jurassic. Compared with extant fleas, these large basal fleas have many different features. Although several fossil species with transitional morphologies filled the evolutionary blank, the early evolution of these ectoparasites is still poorly known. Results: Here we report a new flea with transitional morphology, Pseudopulex tanlan sp. nov., assigned...

Data from: A new subfamily LIP of the major intrinsic proteins

Kirill Vladimirovich Khabudaev, Darya Petrovna Petrova, Mikhail Aleksandrovich Grachev & Yelena Valentinovna Likhoshway
Background: Proteins of the major intrinsic protein (MIP) family, or aquaporins, have been detected in almost all organisms. These proteins are important in cells and organisms because they allow for passive transmembrane transport of water and other small, uncharged polar molecules. Results: We compared the predicted amino acid sequences of 20 MIPs from several algae species of the phylum Heterokontophyta (Kingdom Chromista) with the sequences of MIPs from other organisms. Multiple sequence alignments revealed motifs...

Data from: Evolutionary neutrality of mtDNA introgression: evidence from complete mitogenome analysis in roe deer

Maciej Matosiuk, Irina N. Sheremetyeva, Ilya S. Sheremetyev, Alexander P. Saveljev & Anetta Borkowska
Introgressive hybridization offers a unique platform for studying the molecular basis of natural selection acting on mitogenomes. Most of the mtDNA protein-coding genes are extremely conserved; however, some of the observed variations have potentially adaptive significance. Here, we evaluated whether the evolution of mtDNA in closely related roe deer species affected by widespread mtDNA introgression is neutral or adaptive. We characterized and compared 16 complete mitogenomes of European (Capreolus capreolus) and Siberian (C. pygargus) roe...

Data from: Mito-nuclear discord in six congeneric lineages of Holarctic ducks (genus Anas)

Jeffrey L. Peters, Kevin Winker, Kendra C. Millam, Philip Lavretsky, Irina Kulikova, Robert E. Wilson, Yuri N. Zhuravlev & Kevin G. McCracken
Many species have Holarctic distributions that extend across Europe, Asia, and North America. Most genetics research on these species has examined only mitochondrial (mt) DNA, which has revealed wide variance in divergence between Old World (OW) and New World (NW) populations, ranging from shallow, unstructured genealogies to deeply divergent lineages. In this study, we sequenced 20 nuclear introns to test for concordant patterns of OW-NW differentiation between mtDNA and nuclear (nu) DNA for six lineages...

Data from: X-Ray computed tomography of two mammoth calf mummies

Daniel C. Fisher, Ethan A. Shirley, Christopher D. Whalen, Zachary T. Calamari, Adam N. Rountrey, Alexei N. Tikhonov, Bernard Buigues, Frédéric Lacombat, Semyon Grigoriev & Piotr A. Lazarev
Two female woolly mammoth neonates from permafrost in the Siberian Arctic are the most complete mammoth specimens known. Lyuba, found on the Yamal Peninsula, and Khroma, from northernmost Yakutia, died at ages of approximately one and two months, respectively. Both specimens were CT-scanned, yielding detailed information on the stage of development of their dentition and skeleton and insight into conditions associated with death. Both mammoths died after aspirating mud. Khroma's body was frozen soon after...

Data from: Bibliography of studies on hybrid zones of the common shrew chromosome races distributed in Russia

Rena Nadjafova
The common shrew, Sorex araneus Linnaeus, 1758, has become a model species for cytogenetic and evolutionary studies after discovery of extraordinary Robertsonian polymorphism at the within-species level. Development of differential staining techniques (Q-, R-and G-banding) made it possible to identify the chromosomal arms and their combination in racial karyotypes. Entering into contact with each other, the chromosomal races might form hybrid zones which represent a great interest for understanding of the process of speciation. Until...

Data from: Intercontinental genetic structure and gene flow in Dunlin (Calidris alpina), a potential vector of avian influenza

Mark P. Miller, Susan M. Haig, Thomas D. Mullins, Luzhang Ruan, Bruce Casler, Alexei Dondua, H. River Gates, J. Matthew Johnson, Steve Kendall, Pavel S. Tomkovich, Diane Tracy, Olga P. Valchuk & Richard B. Lanctot
Waterfowl (Anseriformes) and shorebirds (Charadriiformes) are the most common wild vectors of influenza A viruses. Due to their migratory behavior, some may transmit disease over long distances. Migratory connectivity studies can link breeding and nonbreeding grounds while illustrating potential interactions among populations that may spread diseases. We investigated Dunlin (Calidris alpina), a shorebird with a subspecies (C. a. arcticola) that migrates from nonbreeding areas endemic to avian influenza in eastern Asia to breeding grounds in...

Registration Year

  • 2014
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Resource Types

  • Dataset
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Affiliations

  • Russian Academy of Sciences
    8
  • Capital Normal University
    2
  • University of Michigan-Ann Arbor
    1
  • Moscow State University
    1
  • University of Alaska System
    1
  • Bialystok University of Technology
    1
  • University of Miami
    1
  • North-Eastern Federal University
    1
  • Chinese Academy of Sciences
    1
  • United States Geological Survey
    1