Here we report the first record of Drymoreomys albimaculatus Percequillo, Weksler & Costa, (Cricetidae, Sigmodontinae) in Rio de Janeiro state, Brazil. The recently described taxon Drymoreomys albimaculatus is endemic to the Brazilian Atlantic Forest and its biology and genetics are still poorly known. Herein. PDF | Drymoreomys albimaculatus is a recently-described rodent and an Atlantic Forest endemic. It is rare and has a poorly defined geographic.

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Interphotoreceptor retinoid binding protein

It lives in the humid forest on the eastern slopes of the Serra do Mar and perhaps reproduces year-round. The bony palate is broad and short, with the posterior margin between the third molars M3. Bootstrap nodal support indices and Albimacylatus posterior probabilities are shown above the branches, respectively.

Oryzomyini Mammals of Brazil Mammals described in Monotypic rodent genera. Oryzomyiniwith comments on Oryzomyine biogeography.

FISH detected telomeric signals at the ends of all chromosomes and additional telomeric sequences were found in the pericentromeric region of both X and Y chromosomes Fig. Journal of Molecular Evolution Interphotoreceptor retinoid binding protein. Unreviewed – Annotation score: The tail is brown above and below. dryymoreomys

Drymoreomys albimaculatus – Wikipédia, a enciclopédia livre

On the lower molars m1 to m3the cusps on the labial side are located slightly in front of their lingual counterparts. Although several species still remain without karyotypic information e.


The mandible lower jaw is long and low. Sigmodontinae from Misiones Province, Argentina. John Hopkins Drymmoreomys Press, Baltimore: Four distinct tokens exist: Retrieved from ” https: The karyotype herein reported for Drymoreomys albimaculatus is species-specific,since only three other Oryzomyini species present the same diploid number, but different FN: A Patton et al.

Oryzomyiniwith description of two new species from eastern Brazil. InterPro serine-type peptidase activity Source: June 16, Last modified: Sigmodontinae based on albbimaculatus nuclear IRBP exon.

On the urethral processlocated in the crater at the end of the penis, a fleshy process at the side, the lateral lobuleis present. Collection localities of Drymoreomys albimaculatus. Within Oryzomyini, Drymoreomys appears to be most closely dryomreomys to Eremoryzomys from the Andes of Peru, a biogeographically unusual relationship, in that the two populations are widely separated and each is adapted to an arid or a moist environment.

Telomeric sequences are found near the centromeres of the sex chromosomes.

Mammal Species of the World: Phylogenetic analyses based on morphological traits and DNA sequences [bp of cytochrome b Cyt b and bp of interphotoreceptor retinoid binding protein IRBP genes] revealed the placement of Drymoreomys albimaculatus in the tribe Oryzomyiniraising to 30 the number of albimacculatus Oryzomyini genera.


Molecular Phylogenetics and Evolution 1: Superfamily database of structural and functional annotation More This hypothesis could imply chromosomal plasticity in erymoreomys 2n ratios as suggested by Gardner and Patton Zoological Journal of Linnean Society Additionally, external morphological information is provided.

Gardner and Patton Species of tribe Oryzomyini rice rats.

Select the link destinations: November 22, This is version 22 of the entry and version 1 of the sequence. On the underparts, the hairs are grayish at the base and white at the tip, except on the throat, chest, and in some specimens groin, where the hairs are entirely white [12] —a trait unique among the oryzomyines. National Institutes of Health. Distribution extension of Phaenomys ferrugineus Thomas,and new data on Abrawayaomys ruschii Cunha and Cruz, and Rhagomys rufescens Thomas,three rare species of rodents Rodentia: Pelage color and external measurements were taken during the fieldwork.

As Drymoreomys albimaculatus exhibited the highest diploid number reported hitherto and diverged early in clade D, karyotype evolution in this clade based on the drymoremys Fig.