Project 657: M. Weksler. 2006. Phylogenetic relationships of oryzomine rodents (Muroidea, Sigmodontinae) : separate and combined analyses of morphological and molecular data. Bulletin of the American Museum of Natural History. 296:1-149.
Specimen: Oryzomys balneator (AMNH:47593)
View: skull - dorsal

Abstract

In this study I provide a phylogenetic hypothesis for the tribe Oryzomyini that can be used to understand the diversification and evolution of this group of rodents and to revise the current generic-level classification. Morphological and molecular data were used for these purposes in combined and separate analyses. Molecular data consisted of partial sequences (1266 bp) from the first exon of the nuclear gene encoding the interphotoreceptor retinoid binding protein (IRBP); the morphological matrix comprised 99 characters, including 16 integumental characters, 32 skull characters, 29 dental characters, 7 postcranial characters, and 10 characters from the phallus and soft-anatomy systems. I present anatomical descriptions for each character, including delineation of different states observed among oryzomyines. Results of the combined analysis were congruent with the IRBP-only dataset for oryzomyine higher-level relationships. Morphological analyses, although showing discrepancies from the combined or IRBP consensus cladograms and with low nodal support values, recovered several clades similar to the combined and IRBP analyses. Systematics of the tribe and the evolution of a few pivotal characters are discussed in light of the proposed phylogeny. Different taxonomic arrangements for species currently included in the genus Oryzomys are suggested. Finally, I evaluate evolutionary and biogeographic hypotheses that are compatible with our current knowledge on oryzomyine relationships.


Read the article »

Project DOI: 10.7934/P657, http://dx.doi.org/10.7934/P657
This project containsMatrices
  • 34 Media
  • 1 Matrix
  • 2 Documents
  • 1 Folio
  • 112 Taxa
  • 13 Specimens
  • 99 Characters
Total size of project's media files: 49 MB

Download Project SDD File
Total scored cells: 4812
Total media associated with cells: 0
Total labels associated with cell media: 0
Characters
Total characters: 99
Total characters with associated media: 39
Total characters with media with labels: 9
Total character states: 242
Total character states with associated media: 2
Total character states with media with labels:0
Total unordered/ordered characters:99/0
Currently Viewing:
MorphoBank Project 657


    Members

    member name taxa specimens media chars character
    comms
       
    media
    labels
    cell scorings
    (scored, NPA, "-")
    cell
    notes  medialabels
    rules
    MorphoBank Curator
    Project Administrator
    Last logged in 02/02/12
    172210004812
    (4812, 0, 0)
    0000
    Maureen Admin
    Full membership
    Last logged in 01/30/12
    00000000
    (0, 0, 0)
    0000
    Marcelo Weksler
    Full membership
    Last logged in 01/26/12
    9511329804470
    (0, 0, 0)
    0000


    Taxonomic Overview for Matrix 'M1488' (54 Taxa)

    taxon unscored
    cells
    scored
    cells
    no cell
    support
    NPA
    cells
    "-" cellscell images labels on
    cell images
    member
    access
    [1] Nyctomys sumichrasti
    Last Modified in 12/05/13
    3969600003
    [2] Peromyscus maniculatus
    Last Modified in 12/05/13
    10898900003
    [3] Delomys sublineatus
    Last Modified in 12/05/13
    13868600003
    [4] Thomasomys baeops
    Last Modified in 12/05/13
    3989600003
    [5] Wiedomys pyrrhorhinos
    Last Modified in 12/05/13
    12888700003
    [6] Amphinectomys savamis
    Last Modified in 12/05/13
    67323200003
    [7] Handleyomys intectus
    Last Modified in 12/05/13
    16858300003
    [8] Holochilus brasiliensis
    Last Modified in 12/05/13
    1999800003
    [9] Holochilus chacarius
    Last Modified in 12/05/13
    22777700003
    [10] Lundomys molitor
    Last Modified in 12/05/13
    9919000003
    [11] Melanomys caliginosus
    Last Modified in 12/05/13
    1999800003
    [12] Microryzomys minutus
    Last Modified in 12/05/13
    3969600003
    [13] Neacomys minutus
    Last Modified in 12/05/13
    22777700003
    [14] Neacomys musseri
    Last Modified in 12/05/13
    16838300003
    [15] Neacomys spinosus
    Last Modified in 12/05/13
    1999800003
    [16] Nectomys apicalis
    Last Modified in 12/05/13
    15848400003
    [17] Nectomys squamipes
    Last Modified in 12/05/13
    5959400003
    [18] Nesoryzomys narboroughi
    Last Modified in 12/05/13
    5949400003
    [19] Nesoryzomys swarthi
    Last Modified in 12/05/13
    37626200003
    [20] Oecomys bicolor
    Last Modified in 12/05/13
    8949100003
    [21] Oecomys catherinae
    Last Modified in 12/05/13
    23767600003
    [22] Oecomys concolor
    Last Modified in 12/05/13
    11009800003
    [23] Oecomys mamorae
    Last Modified in 12/05/13
    10908900003
    [24] Oecomys trinitatis
    Last Modified in 12/05/13
    12908700003
    [25] Oligoryzomys flavescens
    Last Modified in 12/05/13
    11888800003
    [26] Oligoryzomys fornesi
    Last Modified in 12/05/13
    21787800003
    [27] Oligoryzomys fulvescens
    Last Modified in 12/05/13
    1989800003
    [28] Oligoryzomys nigripes
    Last Modified in 12/05/13
    8929100003
    [29] Oligoryzomys stramineus
    Last Modified in 12/05/13
    23767600003
    [30] Oryzomys albigularis
    Last Modified in 12/05/13
    9939000003
    [31] Oryzomys alfaroi
    Last Modified in 12/05/13
    7959200003
    [32] Oryzomys angouya
    Last Modified in 12/05/13
    21009700003
    [33] Oryzomys balneator
    Last Modified in 12/05/13
    16838300003
    [34] Oryzomys chapmani
    Last Modified in 12/05/13
    10928900003
    [35] Oryzomys couesi
    Last Modified in 12/05/13
    10898900003
    [36] Oryzomys hammondi
    Last Modified in 12/05/13
    23767600003
    [37] Oryzomys lamia
    Last Modified in 12/05/13
    22787700003
    [38] Oryzomys levipes
    Last Modified in 12/05/13
    10918900003
    [39] Oryzomys macconnelli
    Last Modified in 12/05/13
    8939100003
    [40] Oryzomys megacephalus
    Last Modified in 12/05/13
    01019900003
    [41] Oryzomys melanotis
    Last Modified in 12/05/13
    11009800003
    [42] Oryzomys palustris
    Last Modified in 12/05/13
    01019900003
    [43] Oryzomys polius
    Last Modified in 12/05/13
    22777700003
    [44] Oryzomys russatus
    Last Modified in 12/05/13
    14868500003
    [45] Oryzomys subflavus
    Last Modified in 12/05/13
    8969100003
    [46] Oryzomys talamancae
    Last Modified in 12/05/13
    11019800003
    [47] Oryzomys xanthaeolus
    Last Modified in 12/05/13
    9959000003
    [48] Oryzomys yunganus
    Last Modified in 12/05/13
    11898800003
    [49] Pseudoryzomys simplex
    Last Modified in 12/05/13
    9919000003
    [50] Scolomys ucayalensis
    Last Modified in 12/05/13
    9909000003
    [51] Sigmodontomys alfari
    Last Modified in 12/05/13
    21019700003
    [52] Sigmodontomys aphrastus
    Last Modified in 12/05/13
    22787700003
    [53] Zygodontomys brevicauda
    Last Modified in 12/05/13
    11039800003
    [54] Zygodontomys cherriei
    Last Modified in 12/05/13
    11019800003


    Project views

    type number of views Individual items viewed (where applicable)
    Total project views54619
    Project overview2242
    Matrix views1460Matrix landing page (1207 views); Morphological Matrix (253 views);
    Documents list988
    Bibliography10687
    Specimen list8784
    Media views18484Media search (3033 views); M99822 (424 views); M99811 (436 views); M99813 (425 views); M99815 (419 views); M99828 (397 views); M99824 (443 views); M99837 (409 views); M99832 (438 views); M99831 (404 views); M99829 (709 views); M99816 (759 views); M99873 (413 views); M99834 (430 views); M99825 (405 views); M99830 (461 views); M99833 (481 views); M99823 (418 views); M99817 (406 views); M99871 (443 views); M99853 (449 views); M99818 (407 views); M99835 (409 views); M100810 (500 views); M99870 (398 views); M99826 (458 views); M99820 (422 views); M99852 (423 views); M99836 (372 views); M99819 (427 views); M99812 (434 views); M99821 (439 views); M99851 (395 views); M100811 (454 views); M99827 (744 views);
    Taxon list8376
    Folio views1118Folio list (744 views); Weksler, 2008 (374 views);
    Views for media list2480




    Project downloads

    type number of downloads Individual items downloaded (where applicable)
    Total downloads from project219
    Document downloads8Matrix containing morphological and molecular datasets (8 downloads);
    Matrix downloads29Morphological Matrix (29 downloads);
    Project downloads181
    Media downloads1M99871 (1 download);