Project 3199: A. L. Vereshchaka, D. N. Kulagin, A. A. Lunina. 2019. A phylogenetic study of krill (Crustacea: Euphausiacea) reveals new taxa and co-evolution of morphological characters. Cladistics. 35 (2):150-172.
Specimen: Euphausia triacantha (unvouchered)
View: whole animal

Abstract

The first comprehensive phylogenetic study of Euphausiacea (all 86 valid species) is presented. It is based on four molecular markers and 168 morphological characters (including 58 characters of the petasma). Phylogenetic analyses support the monophyly and robustness of the families Bentheuphausidae and Euphausiidae and reveal three major clades for which we erect three new subfamilies: Thysanopodinae, Euphausiinae and Nematoscelinae. All genus-level clades are statistically supported (except Thysanopoda in molecular analyses), deeply nested within the subfamily-level clades, and encompass 14 new species groups. Copulatory structures have a major impact on tree topology in the morphological analysis, the removal of which resulted in only half the number of supported clades and genera. We revealed three groups of morphological characters, which are probably coupled with the same biological role and thus interlinked evolutionarily: (i) antennular peduncle and petasma (copulation); (ii) eyes and anterior thoracopods (feeding); and (iii) shape of carapace and pleon (defence). We analysed the evolutionary pathways of the clades into main oceanic biotopes and compared them with morphological adaptations most likely to be coupled with this process.


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Article DOI: 10.1111/cla.12239

Project DOI: 10.7934/P3199, http://dx.doi.org/10.7934/P3199
This project containsMatrices
  • 1 Media
  • 1 Matrix
  • 3 Documents
  • 88 Taxa
  • 1 Specimen
  • 168 Characters


Download Project SDD File
Total scored cells: 14780
Total media associated with cells: 0
Total labels associated with cell media: 0
Characters
Total characters: 168
Total characters with associated media: 0
Total characters with media with labels: 0
Total character states: 337
Total character states with associated media: 0
Total character states with media with labels:0
Total unordered/ordered characters:168/0
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MorphoBank Project 3199


    Members

    member name taxa specimens media chars character
    media
    labels
    cell scorings
    (scored, NPA, "-")
    cell
    medialabels
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    Tanya Berardini
    Project Administrator
    Last logged in 07/03/18
    87110000
    (0, 0, 0)
    000
    MorphoBank Curator
    Full membership
    Last logged in 08/03/18
    1001680014780
    (14659, 0, 121)
    000


    Taxonomic Overview for Matrix 'M25554' (88 Taxa)

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    [1] Acanthephyra purpurea
    Last Modified in 07/06/18
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    [2] Funchalia villosa
    Last Modified in 07/06/18
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    [3] Bentheuphausia amblyops
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    [4] Euphausia americana
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    [5] Euphausia brevis
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    [6] Euphausia crystallorophias
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    [7] Euphausia diomedeae
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    [8] Euphausia distinguenda
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    [9] Euphausia eximia
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    [10] Euphausia fallax
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    [11] Euphausia frigida
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    [12] Euphausia gibba
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    [13] Euphausia gibboides
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    [14] Euphausia hanseni
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    [15] Euphausia hemigibba
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    [16] Euphausia krohnii
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    [17] Euphausia lamelligera
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    [18] Euphausia longirostris
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    [19] Euphausia lucens
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    [20] Euphausia mucronata
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    [21] Euphausia mutica
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    [22] Euphausia nana
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    [23] Euphausia pacifica
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    [24] Euphausia paragibba
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    [25] Euphausia pseudogibba
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    [26] Euphausia recurva
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    [27] Euphausia sanzoi
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    [28] Euphausia sibogae
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    [29] Euphausia similis
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    [30] Euphausia spinifera
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    [31] Euphausia superba
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    [32] Euphausia tenera
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    [33] Euphausia triacantha
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    [34] Euphausia vallentini
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    [35] Thysanopoda acutifrons
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    [36] Thysanopoda aequalis
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    [37] Thysanopoda astylata
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    [38] Thysanopoda cornuta
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    [39] Thysanopoda cristata
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    [40] Thysanopoda egregia
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    [41] Thysanopoda microphthalma
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    [42] Thysanopoda minyops
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    [43] Thysanopoda monacantha
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    [44] Thysanopoda obtusifrons
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    [45] Thysanopoda orientalis
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    [46] Thysanopoda pectinata
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    [47] Thysanopoda spinicaudata
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    [48] Thysanopoda tricuspidata
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    [49] Nematobrachion boopis
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    [50] Nematobrachion flexipes
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    [51] Nematobrachion sexspinosum
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    [52] Meganyctiphanes norvegica
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    [53] Nyctiphanes australis
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    [54] Nyctiphanes capensis
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    [55] Nyctiphanes couchii
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    [56] Nyctiphanes simplex
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    [57] Pseudeuphausia latifrons
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    [58] Pseudeuphausia sinica
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    [59] Thysanoessa gregaria
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    [60] Thysanoessa inermis
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    [61] Thysanoessa inspinata
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    [62] Thysanoessa longicaudata
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    [63] Thysanoessa longipes
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    [64] Thysanoessa macrura
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    [65] Thysanoessa parva
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    [66] Thysanoessa raschii
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    [67] Thysanoessa spinifera
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    [68] Thysanoessa vicina
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    [69] Tessarabrachion oculatum
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    [70] Nematoscelis atlantica
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    [71] Nematoscelis difficilis
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    [72] Nematoscelis gracilis
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    [73] Nematoscelis lobata
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    [74] Nematoscelis megalops
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    [75] Nematoscelis microps
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    [76] Nematoscelis tenella
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    [77] Stylocheiron abbreviatum
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    [78] Stylocheiron affine
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    [79] Stylocheiron armatum
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    [80] Stylocheiron carinatum
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    [81] Stylocheiron elongatum
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    [82] Stylocheiron indicum
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    [83] Stylocheiron insulare
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    [84] Stylocheiron longicorne
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    [85] Stylocheiron maximum
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    [86] Stylocheiron microphthalma
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    [87] Stylocheiron robustum
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    [88] Stylocheiron suhmi
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    Project views

    type number of views Individual items viewed (where applicable)
    Total project views2360
    Project overview303
    Media views459Media search (385 views); M578236 (74 views);
    Documents list155
    Views for media list149
    Taxon list802
    Specimen list221
    Bibliography104
    Matrix views167Matrix landing page (158 views); TNT matrix from author (9 views);




    Project downloads

    type number of downloads Individual items downloaded (where applicable)
    Total downloads from project40
    Project downloads36
    Document downloads2Character list - descriptions from Supplemental Data (1 download); Character matrix from Supplemental Data (1 download);
    Matrix downloads2TNT matrix from author (2 downloads);