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152 results for “Peromyscus”
Body size trends in response to climate and urbanization in the widespread North American deer mouse, Peromyscus maniculatus
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Data from: Microsatellite genetic structure and cytonuclear discordance in naturally fragmented populations of deer mice (Peromyscus maniculatus)
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Data from: Landscape models for nuclear genetic diversity and genetic structure in white-footed mice (Peromyscus leucopus)
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Data from: Development of homeothermic endothermy is delayed in high altitude native deer mice (Peromyscus maniculatus)
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Data from: Characterization of the transcriptome, nucleotide sequence polymorphism, and natural selection in the desert adapted mouse Peromyscus eremicus
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Data from: Signatures of rapid evolution in urban and rural transcriptomes of white-footed mice (Peromyscus leucopus) in the New York metropolitan area
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Peromyscus WGCNA supplement
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Data from: The role of isoforms in the evolution of cryptic coloration in Peromyscus mice
A central goal of evolutionary biology is to understand the molecular mechanisms underlying phenotypic adaptation. While the contribution of protein-coding and cis-regulatory mutations to adaptive traits has been well documented, additional sources of variation – such as the production of alternative RNA transcripts from a single gene, or isoforms – have been understudied. Here, we focus on the pigmentation gene Agouti, known to express multiple alternative transcripts, to investigate the role of isoform usage in the evolution of cryptic colour phenotypes in deer mice (genus Peromyscus). We first characterize the Agouti isoforms expressed in the Peromyscus skin and find two novel isoforms not previously identified in Mus. Next, we show that a locally adapted light-coloured population of P. maniculatus living on the Nebraska Sand Hills shows an upregulation of a single Agouti isoform, termed 1C, compared with their ancestral dark-coloured conspecifics. Using in vitro assays, we show that this preference for isoform 1C may be driven by isoform-specific differences in translation. In addition, using an admixed population of wild-caught mice, we find that variation in overall Agouti expression maps to a region near exon 1C, which also has patterns of nucleotide variation consistent with strong positive selection. Finally, we show that the independent evolution of cryptic light pigmentation in a different species, P. polionotus, has been driven by a preference for the same Agouti isoform. Together, these findings present an example of the role of alternative transcript processing in adaptation and demonstrate molecular convergence at the level of isoform regulation.
Data from: Estrogen receptor alpha distribution and expression in the social neural network of monogamous and polygynous Peromyscus
In microtine and dwarf hamsters low levels of estrogen receptor alpha (ERa) in the bed nucleus of the stria terminalis (BST) and medial amygdala (MeA) play a critical role in the expression of social monogamy in males, which is characterized by high levels of affiliation and low levels of aggression. In contrast, monogamous Peromyscus males display high levels of aggression and affiliative behavior with high levels of testosterone and aromatase activity. Suggesting the hypothesis that in Peromyscus ERa expression will be positively correlated with high levels of male prosocial behavior and aggression. ERa expression was compared within the social neural network, including the posterior medial BST, MeA posterodorsal, medial preoptic area (MPOA), ventromedial hypothalamus (VMH), and arcuate nucleus in two monogamous species, P. californicus and P. polionotus, and two polygynous species, P. leucopus and P. maniculatus. The results supported the prediction, with male P. polionotus and P. californicus expressing higher levels of ERa in the BST than their polygynous counter parts, and ERa expression was sexually dimorphic in the polygynous species, with females expressing significantly more than males in the BST in both polygynous species and in the MeA in P. leucopus. Peromyscus ERa expression also differed from rats, mice and microtines as in neither the MPOA nor the VMH was ERa sexually dimorphic. The results supported the hypothesis that higher levels of ERa are associated with monogamy in Peromyscus and that differential expression of ERa occurs in the same regions of the brains regardless of whether high or low expression is associated with social monogamy. Also discussed are possible mechanisms regulating this differential relationship.
Fig. 2 in Peromyscus levipes (Rodentia: Cricetidae)
Fig. 2.—Dorsal, ventral, and lateral views of cranium and lateral view of mandible of an adult female Peromyscus levipes from Mexico (Escuela Nacional de Ciencias Biolo´ gicas, 27530). Greatest length of cranium is 27.2 mm. Photograph by Horacio Cabrera Santiago.
Figure 1 in Taxonomy And Phylogenetics Of The Peromyscus Maniculatus Species Group
Figure 1. Map of the general distributions of species in the P. maniculatus group as discussed and recognized herein. Peomyscus sejugis is restricted to Isla Santa Cruz and Isla San Diego in the Gulf of California and is not figured. Numbers in parentheses refer to the DNA clades as designated by Dragoo et al. (2006), and cross hatching indicates distributional overlap of P. melanotis and P. labecula. The general distributions of species were determined by plotting the geographically marginal specimens reported in the following papers: Bowers et al. (1973), Allard and Greenbaum (1988), Hogan et al. (1993), Wike (1998), Zheng et al. (2003), Lucid and Cook (2004), Dragoo et al. (2006), Walker et al. (2006), Lucid and Cook (2007), Gering et al. (2009), Yang and Kenagy (2011), Domingues et al. (2012), Kalkvik et al. (2012), Natarajan et al. (2015), Greenbaum et al. (2017), Kingsley et al. (2017), Sawyer et al. (2017), and Kalkvik et al. (2018).
Figure 2 in Intragonadal evaluation of sexual steroid hormones during three reproductive events in two species of Peromyscus (Rodentia: Cricetidae)
Figure 2. Production and biotransformation profiles in four selected SSH of the ∆4 pathway by reproductive event in two species of Peromyscus. Mean intraovarian concentrations of sexual steroid hormones ([SSH]: progesterone, P4; androstenedione, A, testosterone, T; estradiol, E2) were assessed in free-living, adult females of P. melanotis (A) and P. difficilis (B), during estrous cycle (PRO, proestrus; EST, estrus; MET, metestrus; DIE, diestrus), pregnancy (early gestation, G1; late gestation, G2), and overall lactation. Bars depict mean [SSH] and vertical whiskers the respective standard errors; arrows signal which [SSH] had significant differences with others; when more than one [SSH] was statistically different in ANOVA analyzes, horizontal lines were added and arrows below and above them signal the respective [SSH]; number of asterisks indicate degree of significance in p-values (see Methods, Results, and the ANOVA in Table S1): * = significant; ** = very significant; *** = extremely significant; the plus sign (+) shows an almost statistically significant instance. Note that scales of plots differ.
Figure 4 in Intragonadal evaluation of sexual steroid hormones during three reproductive events in two species of Peromyscus (Rodentia: Cricetidae)
Figure 4. Comparison of intraovarian contents of each steroid hormone in two Peromyscus species: (A) progesterone [P4], (B) Androstenedione [A], (C) Testosterone [T1], (D) Estradiol [E2]. Concentrations curves include a complete estrous cycle (CEC) and a successful estrous cycle (SEC; i.e., followed by pregnancy and lactation), in free-living, adult females of P. melanotis (open markers) and P. difficilis (closed markers). The arrow and asterisk signal the only interspecific significant difference. Symbology after Fig. 1.
Fig. 1 in Parasite species co-occurrence patterns on Peromyscus: Joint species distribution modelling
Fig. 1. Summary of positive (green, +) and negative (red, -) associations between ectoparasite species (flea (Orchopeas leucopus), mite (Neotrombicula microti), botfly (Cuterebra sp.)) on deer mice with statistical support of at least 95% posterior probability (n = 229 individuals). Results presented are from the constrained model (species interactions) or unconstrained model (species associations). (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.)
Data from: The role of isoforms in the evolution of cryptic coloration in Peromyscus mice
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Data from: Phylogeography and Molecular Systematics of the Peromyscus Aztecus Species Group (Rodentia: Muridae) Inferred Using Parsimony and Likelihood
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Data from: Sexual imprinting and speciation in two Peromyscus species
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Data from: Estrogen receptor alpha distribution and expression in the social neural network of monogamous and polygynous Peromyscus
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Evolution of neuronal cell classes and types in the vertebrate retina [Peromyscus]
GEO Series GSE237208. Peromyscus maniculatus. 8 samples. Type: Expression profiling by high throughput sequencing.
Whole Transcriptome Sequencing of Peromyscus maniculatus in Response to High Fat Diet
GEO Series GSE146846. Peromyscus maniculatus. 16 samples. Type: Expression profiling by high throughput sequencing.
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
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