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.
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 contains | Matrices |
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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 |
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MorphoBank Project 657
MorphoBank Project 657
- Creation Date:
07 December 2007 - Publication Date:
06 July 2011 - Project views: 104008
- Media downloads: 1
- Matrix downloads: 38
Authors' Institutions
- American Museum of Natural History
Members
member name | taxa ![]() |
specimens ![]() |
media ![]() | chars ![]() | character
| cell scorings (scored, NPA, "-") | cell
| rules ![]() | ||||||||||
MorphoBank Curator Project Administrator | 17 | 2 | 2 | 1 | 0 | 0 | 0 | 4812 (4812, 0, 0) | 0 | 0 | 0 | 0 | ||||||
Maureen Admin Full membership ![]() | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 (0, 0, 0) | 0 | 0 | 0 | 0 | ||||||
Marcelo Weksler Full membership ![]() | 95 | 11 | 32 | 98 | 0 | 44 | 7 | 0 (0, 0, 0) | 0 | 0 | 0 | 0 |
Taxonomic Overview for Matrix 'M1488' (54 Taxa)
taxon | unscored cells |
scored cells ![]() |
no cell support ![]() |
NPA cells |
"-" cells | cell images | labels on cell images |
member access |
[1] Nyctomys sumichrasti Last Modified in 12/05/13 | 3 | 96 | 96 | 0 | 0 | 0 | 0 | 3 ![]() |
[2] Peromyscus maniculatus Last Modified in 12/05/13 | 10 | 89 | 89 | 0 | 0 | 0 | 0 | 3 ![]() |
[3] Delomys sublineatus Last Modified in 12/05/13 | 13 | 86 | 86 | 0 | 0 | 0 | 0 | 3 ![]() |
[4] Thomasomys baeops Last Modified in 12/05/13 | 3 | 98 | 96 | 0 | 0 | 0 | 0 | 3 ![]() |
[5] Wiedomys pyrrhorhinos Last Modified in 12/05/13 | 12 | 88 | 87 | 0 | 0 | 0 | 0 | 3 ![]() |
[6] Amphinectomys savamis Last Modified in 12/05/13 | 67 | 32 | 32 | 0 | 0 | 0 | 0 | 3 ![]() |
[7] Handleyomys intectus Last Modified in 12/05/13 | 16 | 85 | 83 | 0 | 0 | 0 | 0 | 3 ![]() |
[8] Holochilus brasiliensis Last Modified in 12/05/13 | 1 | 99 | 98 | 0 | 0 | 0 | 0 | 3 ![]() |
[9] Holochilus chacarius Last Modified in 12/05/13 | 22 | 77 | 77 | 0 | 0 | 0 | 0 | 3 ![]() |
[10] Lundomys molitor Last Modified in 12/05/13 | 9 | 91 | 90 | 0 | 0 | 0 | 0 | 3 ![]() |
[11] Melanomys caliginosus Last Modified in 12/05/13 | 1 | 99 | 98 | 0 | 0 | 0 | 0 | 3 ![]() |
[12] Microryzomys minutus Last Modified in 12/05/13 | 3 | 96 | 96 | 0 | 0 | 0 | 0 | 3 ![]() |
[13] Neacomys minutus Last Modified in 12/05/13 | 22 | 77 | 77 | 0 | 0 | 0 | 0 | 3 ![]() |
[14] Neacomys musseri Last Modified in 12/05/13 | 16 | 83 | 83 | 0 | 0 | 0 | 0 | 3 ![]() |
[15] Neacomys spinosus Last Modified in 12/05/13 | 1 | 99 | 98 | 0 | 0 | 0 | 0 | 3 ![]() |
[16] Nectomys apicalis Last Modified in 12/05/13 | 15 | 84 | 84 | 0 | 0 | 0 | 0 | 3 ![]() |
[17] Nectomys squamipes Last Modified in 12/05/13 | 5 | 95 | 94 | 0 | 0 | 0 | 0 | 3 ![]() |
[18] Nesoryzomys narboroughi Last Modified in 12/05/13 | 5 | 94 | 94 | 0 | 0 | 0 | 0 | 3 ![]() |
[19] Nesoryzomys swarthi Last Modified in 12/05/13 | 37 | 62 | 62 | 0 | 0 | 0 | 0 | 3 ![]() |
[20] Oecomys bicolor Last Modified in 12/05/13 | 8 | 94 | 91 | 0 | 0 | 0 | 0 | 3 ![]() |
[21] Oecomys catherinae Last Modified in 12/05/13 | 23 | 76 | 76 | 0 | 0 | 0 | 0 | 3 ![]() |
[22] Oecomys concolor Last Modified in 12/05/13 | 1 | 100 | 98 | 0 | 0 | 0 | 0 | 3 ![]() |
[23] Oecomys mamorae Last Modified in 12/05/13 | 10 | 90 | 89 | 0 | 0 | 0 | 0 | 3 ![]() |
[24] Oecomys trinitatis Last Modified in 12/05/13 | 12 | 90 | 87 | 0 | 0 | 0 | 0 | 3 ![]() |
[25] Oligoryzomys flavescens Last Modified in 12/05/13 | 11 | 88 | 88 | 0 | 0 | 0 | 0 | 3 ![]() |
[26] Oligoryzomys fornesi Last Modified in 12/05/13 | 21 | 78 | 78 | 0 | 0 | 0 | 0 | 3 ![]() |
[27] Oligoryzomys fulvescens Last Modified in 12/05/13 | 1 | 98 | 98 | 0 | 0 | 0 | 0 | 3 ![]() |
[28] Oligoryzomys nigripes Last Modified in 12/05/13 | 8 | 92 | 91 | 0 | 0 | 0 | 0 | 3 ![]() |
[29] Oligoryzomys stramineus Last Modified in 12/05/13 | 23 | 76 | 76 | 0 | 0 | 0 | 0 | 3 ![]() |
[30] Oryzomys albigularis Last Modified in 12/05/13 | 9 | 93 | 90 | 0 | 0 | 0 | 0 | 3 ![]() |
[31] Oryzomys alfaroi Last Modified in 12/05/13 | 7 | 95 | 92 | 0 | 0 | 0 | 0 | 3 ![]() |
[32] Oryzomys angouya Last Modified in 12/05/13 | 2 | 100 | 97 | 0 | 0 | 0 | 0 | 3 ![]() |
[33] Oryzomys balneator Last Modified in 12/05/13 | 16 | 83 | 83 | 0 | 0 | 0 | 0 | 3 ![]() |
[34] Oryzomys chapmani Last Modified in 12/05/13 | 10 | 92 | 89 | 0 | 0 | 0 | 0 | 3 ![]() |
[35] Oryzomys couesi Last Modified in 12/05/13 | 10 | 89 | 89 | 0 | 0 | 0 | 0 | 3 ![]() |
[36] Oryzomys hammondi Last Modified in 12/05/13 | 23 | 76 | 76 | 0 | 0 | 0 | 0 | 3 ![]() |
[37] Oryzomys lamia Last Modified in 12/05/13 | 22 | 78 | 77 | 0 | 0 | 0 | 0 | 3 ![]() |
[38] Oryzomys levipes Last Modified in 12/05/13 | 10 | 91 | 89 | 0 | 0 | 0 | 0 | 3 ![]() |
[39] Oryzomys macconnelli Last Modified in 12/05/13 | 8 | 93 | 91 | 0 | 0 | 0 | 0 | 3 ![]() |
[40] Oryzomys megacephalus Last Modified in 12/05/13 | 0 | 101 | 99 | 0 | 0 | 0 | 0 | 3 ![]() |
[41] Oryzomys melanotis Last Modified in 12/05/13 | 1 | 100 | 98 | 0 | 0 | 0 | 0 | 3 ![]() |
[42] Oryzomys palustris Last Modified in 12/05/13 | 0 | 101 | 99 | 0 | 0 | 0 | 0 | 3 ![]() |
[43] Oryzomys polius Last Modified in 12/05/13 | 22 | 77 | 77 | 0 | 0 | 0 | 0 | 3 ![]() |
[44] Oryzomys russatus Last Modified in 12/05/13 | 14 | 86 | 85 | 0 | 0 | 0 | 0 | 3 ![]() |
[45] Oryzomys subflavus Last Modified in 12/05/13 | 8 | 96 | 91 | 0 | 0 | 0 | 0 | 3 ![]() |
[46] Oryzomys talamancae Last Modified in 12/05/13 | 1 | 101 | 98 | 0 | 0 | 0 | 0 | 3 ![]() |
[47] Oryzomys xanthaeolus Last Modified in 12/05/13 | 9 | 95 | 90 | 0 | 0 | 0 | 0 | 3 ![]() |
[48] Oryzomys yunganus Last Modified in 12/05/13 | 11 | 89 | 88 | 0 | 0 | 0 | 0 | 3 ![]() |
[49] Pseudoryzomys simplex Last Modified in 12/05/13 | 9 | 91 | 90 | 0 | 0 | 0 | 0 | 3 ![]() |
[50] Scolomys ucayalensis Last Modified in 12/05/13 | 9 | 90 | 90 | 0 | 0 | 0 | 0 | 3 ![]() |
[51] Sigmodontomys alfari Last Modified in 12/05/13 | 2 | 101 | 97 | 0 | 0 | 0 | 0 | 3 ![]() |
[52] Sigmodontomys aphrastus Last Modified in 12/05/13 | 22 | 78 | 77 | 0 | 0 | 0 | 0 | 3 ![]() |
[53] Zygodontomys brevicauda Last Modified in 12/05/13 | 1 | 103 | 98 | 0 | 0 | 0 | 0 | 3 ![]() |
[54] Zygodontomys cherriei Last Modified in 12/05/13 | 1 | 101 | 98 | 0 | 0 | 0 | 0 | 3 ![]() |
Project views 
type | number of views | Individual items viewed (where applicable) |
Total project views | 104008 | |
Project overview | 4022 | |
Matrix views | 2620 | Matrix landing page (2230 views); Morphological Matrix (390 views); |
Documents list | 1719 | |
Bibliography | 19684 | |
Specimen list | 16660 | |
Media views | 33834 | Media search (5527 views); M99822 (774 views); M99811 (894 views); M99813 (779 views); M99815 (768 views); M99828 (766 views); M99824 (837 views); M99837 (769 views); M99832 (816 views); M99831 (784 views); M99829 (1070 views); M99816 (1165 views); M99873 (789 views); M99834 (823 views); M99825 (762 views); M99830 (821 views); M99833 (848 views); M99823 (800 views); M99817 (782 views); M99871 (799 views); M99853 (811 views); M99818 (804 views); M99835 (779 views); M100810 (877 views); M99870 (783 views); M99826 (813 views); M99820 (829 views); M99852 (790 views); M99836 (768 views); M99819 (820 views); M99812 (820 views); M99821 (803 views); M99851 (777 views); M100811 (835 views); M99827 (1152 views); |
Taxon list | 18748 | |
Folio views | 2055 | Folio list (1357 views); Weksler, 2008 (698 views); |
Views for media list | 4666 |
Project downloads 
type | number of downloads | Individual items downloaded (where applicable) |
Total downloads from project | 414 | |
Document downloads | 9 | Matrix containing morphological and molecular datasets (9 downloads); |
Matrix downloads | 38 | Morphological Matrix (38 downloads); |
Project downloads | 366 | |
Media downloads | 1 | M99871 (1 download); |