Project 223: S. T. Williams, K. M. Donald, H. G. Spencer, T. Nakano. 2010. Molecular systematics of the marine gastropod families Trochidae and Calliostomatidae (Mollusca: Superfamily Trochoidea). Molecular Phylogenetics and Evolution. 54 (3):783-809.
Specimen: Monilea smithi (NSMT:Mo76842)

Abstract

This study is the most extensive molecular study of the gastropod families Trochidae and Calliostomatidae published to date, in terms of both numbers of taxa and of gene sequences. As a result of Bayesian phylogenetic analyses of molecular sequence data from one nuclear gene and three mitochondrial genes, we propose dramatic changes to Trochidae family systematics, present the first molecular phylogeny for Calliostomatidae and include the first published sequence data for the enigmatic subfamily Thysanodontinae. Our phylogeny demonstrates that within the family Trochidae there is strong support for three subfamilies new to traditional classifications: Alcyninae subfam. nov., Fossarininae and Chrysostomatinae subfam. nov. As proposed, Alcyninae consists only of the nominotypical genus Alcyna, which is sister to all other trochids. The subfamily Fossarininae, as defined here, includes Fossarina, Broderipia, Synaptocochlea and ‘‘Roya” eximia and probably also Clydonochilus and Minopa. The subfamily Chrysostomatinae comprises the genera Chrysostoma and Chlorodiloma. Additional molecular support is also obtained for recently redefined Trochinae, Monodontinae, and Cantharidinae and for the traditionally recognised subfamilies Umboniinae and Stomatellinae. The subfamily Lirulariinae is not supported by the molecular data, but rather is incorporated into Umboniinae. We also demonstrate that the current concept of the subfamily Margaritinae (previously a trochid subfamily, but recently and provisionally assigned to Turbinidae) is not monophyletic. We provide preliminary evidence that whereas Margarella rosea (previously a member of Margaritinae) belongs in the trochid subfamily Cantharidinae, its presumptive congener M. antarctica is not a trochid, but instead clusters with the thysanodontine genus Carinastele. Based on the phylogenetic placement of C. kristelleae, we agree with previous proposals based on morphological data that Thysanodontinae are more closely related to Calliostomatidae than Trochidae. Both Calliostoma and Carinastele are carnivorous and if a sister relationship can be confirmed between Carinastele and Margarella antarctica it might mean that carnivory evolved twice in Trochoidea. The direction of dietary changes was not investigated in this study, but mapping diet onto the phylogeny suggests that true herbivory is predominantly a derived character. The new classification system also means that five trochid subfamilies are predominantly associated with hard substrata, one with soft substrata (Umboniinae) and two with algae and seagrass (Alcyninae and Cantharidinae). There has been a shift back to hard substrata in one umboniine clade. Two of three clades within Calliostomatidae were predominantly associated with hard substrata, but one Japanese clade is associated with sand. The finding of three new, unidentified species from very deep water means that Trochidae, like Calliostomatidae, now includes species found at bathyal depths. More deep-water species may be found as increased sampling leads to the discovery of new species.


Read the article »

Project DOI: 10.7934/P223, http://dx.doi.org/10.7934/P223
This project contains
  • 126 Media
  • 1 Document
  • 119 Taxa
  • 136 Specimens
Total size of project's media files: 150.86M

Download Project SDD File
Currently Viewing:
MorphoBank Project 223

    Authors' Institutions

    • Natural History Museum, London

    • University of Otago

    • National Museum of Nature and Science, Japan



    Members

    member name taxa specimens media media
    notes
    Suzanne Williams
    Project Administrator
    Last logged in 01/14/10
    39514342
    MorphoBank Curator
    Full membership
    Last logged in 03/24/12
    0000
    Kirsten Donald
    Full membership
    Last logged in 10/12/09
    42424141
    Tomo Nakano
    Full membership
    Last logged in 08/31/09
    38434242


    Project has no matrices defined.



    Project views

    type number of views Individual items viewed (where applicable)
    Total project views135408
    Media views54392M24198 (456 views); M24568 (406 views); M24486 (505 views); M24197 (442 views); Media search (5394 views); M24490 (387 views); M24598 (247 views); M24522 (392 views); M24520 (396 views); M24585 (396 views); M24264 (420 views); M24109 (632 views); M24603 (253 views); M24543 (439 views); M24105 (430 views); M24077 (651 views); M24078 (430 views); M24534 (393 views); M24217 (459 views); M24281 (401 views); M24759 (276 views); M24516 (448 views); M24521 (422 views); M24487 (411 views); M24518 (411 views); M24492 (350 views); M24491 (384 views); M24218 (410 views); M24582 (414 views); M33710 (273 views); M25184 (241 views); M24944 (250 views); M24948 (197 views); M24601 (275 views); M24530 (387 views); M24275 (415 views); M24106 (589 views); M24107 (372 views); M24196 (552 views); M24215 (392 views); M24219 (689 views); M24248 (644 views); M24249 (431 views); M24513 (580 views); M24279 (449 views); M24510 (384 views); M24523 (362 views); M24558 (368 views); M24562 (403 views); M24110 (401 views); M24536 (440 views); M24247 (438 views); M24199 (386 views); M24597 (299 views); M24533 (340 views); M24283 (354 views); M24604 (264 views); M24282 (434 views); M24579 (429 views); M24760 (236 views); M24271 (380 views); M24554 (400 views); M24267 (395 views); M24527 (368 views); M24273 (360 views); M24940 (290 views); M24941 (273 views); M24942 (244 views); M24943 (276 views); M24572 (389 views); M24277 (494 views); M24576 (406 views); M24569 (406 views); M24525 (377 views); M24265 (376 views); M24557 (389 views); M24591 (407 views); M24559 (378 views); M24593 (282 views); M24546 (366 views); M24577 (404 views); M24584 (399 views); M24493 (413 views); M24268 (395 views); M24269 (393 views); M24278 (477 views); M24563 (359 views); M24581 (370 views); M24514 (430 views); M24272 (418 views); M24561 (401 views); M24111 (584 views); M24495 (468 views); M24588 (389 views); M24544 (397 views); M24488 (397 views); M24578 (371 views); M24511 (391 views); M24555 (388 views); M24489 (342 views); M24590 (477 views); M24595 (245 views); M24571 (409 views); M24596 (269 views); M24539 (440 views); M24599 (231 views); M24509 (415 views); M24524 (422 views); M24758 (251 views); M24761 (226 views); M24519 (389 views); M24276 (460 views); M24280 (413 views); M24482 (486 views); M24270 (384 views); M24266 (416 views); M24494 (504 views); M24552 (422 views); M24583 (396 views); M24586 (367 views); M24580 (360 views); M24685 (256 views); M24587 (404 views); M24600 (238 views); M24592 (203 views); M24594 (273 views); M33388 (265 views);
    Specimen list60370
    Taxon list15194
    Project overview3683
    Documents list962
    Bibliography807




    Project downloads

    type number of downloads Individual items downloaded (where applicable)
    Total downloads from project228
    Media downloads12M24568 (1 download); M24217 (1 download); M24196 (1 download); M24948 (1 download); M24111 (1 download); M24249 (1 download); M24595 (2 downloads); M24596 (1 download); M24486 (1 download); M24539 (2 downloads);
    Document downloads4Copyright information for exemplar media (4 downloads);
    Project downloads212