Project 3707: M. Kolicka, M. Dabert, Z. Olszanowski, J. Dabert. 2020. Sweet or salty? The origin of freshwater gastrotrichs (Gastrotricha, Chaetonotida) revealed by molecular phylogenetic analysis. Cladistics. epub ahead of print:null.
Specimen: “chaetonotidae” synapomorphies (unvouchered)
View: Dorsal/Internal/Ventral view

Abstract

Chaetonotidae, the most diverse and widely distributed family of the order Chaetonotida (Gastrotricha) includes both marine and freshwater species. Although the family is regarded as a sister taxon to exclusively marine Xenotrichulidae, the type of environment, marine or freshwater, where Chaetonotidae originated is still not known. Here we infered molecular phylogeny of chaetonotids using multiple molecular markers together with morphological and ecological character tracing. Our results revealed that the freshwater genus Bifidochaetus is the earliest branching lineage in the paraphyletic Chaetonotidae (encompassing Dasydytidae and Neogosseidae). Moreover, we reconstructed the clade grouping Lepidochaetus and Cephalionotus genera in sister relation to the remaing chaetonotids which supports Kisielwski's morphological based hypothesis concerning undifferentiated type of body scales as a most primary character in Chaetonotidae. We also recovered that the reversals to marine habitats occurred independently in different Chaetonotidae lineages, thus marine species in the genera Heterolepidoderma, Halichaetonotus, Aspidiophorus and subgenera Chaetonotus (Schizochaetonotus) or Chaetonotus (Marinochaetus) should be assumed as advanced, derived taxa. Tracing of the eco-morphological characters on the reconstructed tree suggests that ventroterminal mouth ring, separate cephalic plates, separate cephalic sensory cilia arrangement in paired tufts, hypostomium, reduced testis and reduced, unmovable spermatozoa together with parthenogenesis as a main type of reproduction are the synapomorphies defining the whole Chaetonotidae.


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Article DOI: 10.1111/cla.12424

Project DOI: 10.7934/P3707, http://dx.doi.org/10.7934/P3707
This project containsMatrices
  • 2 Media
  • 1 Matrix
  • 16 Documents
  • 153 Taxa
  • 2 Specimens
  • 131 Characters
Total size of project's media files: 537.83M

Download Project SDD File
Total scored cells: 19701
Total media associated with cells: 0
Total labels associated with cell media: 0
Characters
Total characters: 131
Total characters with associated media: 0
Total characters with media with labels: 0
Total character states: 499
Total character states with associated media: 0
Total character states with media with labels:0
Total unordered/ordered characters:131/0
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MorphoBank Project 3707

    Authors' Institutions

    • Adam Mickiewicz University in Poznan



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    Małgorzata Kolicka
    Project Administrator
    Last logged in 05/14/20
    153220131000019701
    (14289, 0, 5412)
    00000


    Taxonomic Overview for Matrix 'M26601' (151 Taxa)

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    [1] Arenotus strixinoi
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    [2] Aspid ophiodermus
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    [3] Aspidio para
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    09191040001
    [4] Aspidio polystictos
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    [5] Aspid sp nov 2 motu 48
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    [6] Aspid sp nov 3 motu 63
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    [7] Aspid sp nov motu 35
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    [8] Aspidio tentaculatus
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    [9] Aspid tetrachaetus
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    [10] Bifid arcticus
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    [11] Bifid sp motu 61
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    [12] Cepha kisielewskii
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    [13] Ch ch aff gel motu 27
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    [14] Ch ch aff bombardus motu 12
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    [15] Ch ch aff bombardus motu 13
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    [16] Ch ch aff bombardus motu 14
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    [17] Ch ch aff bombardus motu 16
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    [18] Ch ch aff daphnes 2 motu 64
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    [19] Ch ch aff daphnes motu 46
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    [20] Ch ch aff daphnes motu 47
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    [21] Ch ch aff gel 2 motu 29
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    [22] Ch ch aff gelidus motu 20
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    [23] Ch ch aff gelidus motu 23
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    [24] Ch ch aff maximus motu 40
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    [25] Ch ch aff maximus motu 49
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    [26] Ch ch aff micro motu 45
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    [27] Ch ch aff oculiefer motu 24
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    [28] Ch ch aff oculifer motu 31
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    [29] Ch ch aff sphagno motu 26
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    [30] Ch ch aff sub 3 motu 37
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    [31] Ch ch aff sub 3 motu 58
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    [32] Ch ch aff sub 4 motu 36
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    [33] Ch ch aff sub 5 motu 39
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    [34] Ch ch aff sub motu 57
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    [35] Ch ch antrumus
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    [36] Ch ch bombardus
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    [37] Ch ch cf laroides
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    [38] Ch ch cf maximus 1
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    [39] Ch ch cf oculifer
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    [40] Ch ch cf similis 1
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    [41] Ch ch cf sphagnophilus
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    [42] Ch ch daphnes
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    [43] Ch ch gelidus
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    [44] Ch ch hetero motu 28
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    [45] Ch ch jaceki
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    [46] Ch ch jaceki motu 17
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    [47] Ch ch jaceki motu 18
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    [48] Ch ch laroides
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    [49] Ch ch microchaetus
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    [50] Ch ch polyspinosus
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    [51] Ch ch similis
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    [52] Ch ch sp 2 motu 19
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    [53] Aspid sp nov 3 motu 34
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    [54] Ch ch sp 2 motu 38
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    [55] Ch ch spec a
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    [56] Ch ch subtilis
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    [57] Ch ch subtilis motu 56
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    [58] Ch hys aemilianus
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    [59] Ch hys aff euhystrix motu 11
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    [60] Ch hys aff euhystrix motu 62
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    [61] Ch hys aff pers motu 1
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    [62] Ch hys aff pers motu 2
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    [63] Ch hys aff persimilis motu 6
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    [64] Ch hys borealis
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    [65] Ch hys borealis motu 5
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    [66] Ch hys cf hornsundi motu 8
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    [67] Ch hys cf hystrix
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    [68] Ch h cf novenarius
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    [69] Ch hys hornsundi
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    [70] Ch h hornsundi motu 21
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    [71] Ch hys hornsundi motu 9
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    [72] Ch h hystrix 1
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    [73] Ch hys persimilis
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    [74] Ch h persimilis 2
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    [75] Ch hys persimilis motu 10
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    [76] Ch h persimilis motu 25
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    [77] Ch hys persimilis motu 3
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    [78] Ch hys persimilis motu 3 2
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    [79] Ch hys persimilis motu 4
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    [80] Ch hys persimilis motu 7
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    [81] Ch m mariae
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    08888043001
    [82] Ch ch aff oculifer motu 30
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    09999032001
    [83] Ch p aff heid 2 motu 50
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    [84] Ch p aff haideri 3 motu 51
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    [85] Ch p aff haideri motu 52
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    [86] Ch p aff haideri motu 53
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    [87] Ch p acanthocephalus
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    [88] Ch p acanthodes 1
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    [89] Ch p acanthodes motu 59
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    [90] Ch p armatus
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    [91] Ch p heideri 1
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    [92] Ch p heteracanthus
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    [93] Ch p sp 1 aff armatus
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    [94] Ch p sp 2 aff acanthocep
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    [95] Ch schizo cf dispar
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    38787041001
    [96] Ch schiz neptuni 1
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    [97] Ch schizo schultzei
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    [98] Ch w semovitus
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    [99] Ch w uncinus
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    [100] Ch z bisacer
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    [101] Dactyl mesotyphle
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    27474055001
    [102] Das prod elongatus 1
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    [103] Das prod papaveroi
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    [104] Das carvalhoae
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    [105] Diur aspetos
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    [106] Dracu tesellata tk142
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    [107] Hali aculifer
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    [108] Hali euromarinus
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    [109] Hali paradoxus
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    [110] Hali schromi
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    [111] Haltidytes squamosus
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    [112] Hetero acidophilum
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    [113] Hetero aff ocellatum motu 32
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    [114] Hetero loricatum
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    [115] Hetero macrops
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    [116] Hetero ocellatum
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    [117] Hetero sinus
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    [118] Heteroxeno squamosa
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    [119] Icht skandicum
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    [120] Icht skandicum motu 54
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    [121] Icht skandicum motu 55
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    [122] Icht spec nov motu 33
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    [123] Icht squamigerum
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    [124] Kij devestiva 1
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    [125] Lepidochaetus brasil
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    [126] Lepidochaetus zeli 1
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    [127] Ch ch aff gelidus motu 22
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    [128] Lepido aff squa motu 44
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    [129] Lepido cf polaris motu 41
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    [130] Lepid intermedia
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    [131] Lepid minor minor
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    [132] Lepido polaris
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    [133] Lepido polaris motu 42
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    [134] Lepido polaris motu 43
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    [135] Lepido squamata 1
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    [136] Mus delamarei
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    [137] Mus reichardti
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    [138] Neod chaetonotoideus
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    [139] Neod cirritus
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    [140] Neodasys uchidai
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    [141] Neogossea acanthocolla
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    [142] Neogossea antennigera 1
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    [143] Ornamentula paraensis
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    [144] Pol nodicaudus 1
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    [145] Pol rhomboides 1
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    [146] Styl fusiformis
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    [147] Styl scirtetica
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    [148] Xeno cf intermedia
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    [149] Xeno intermedia
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    [150] Xeno punctata
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    [151] Xeno velox
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