Pliocene colonization and adaptive radiations in Australia and New Guinea (Sahul): Multilocus systematics of the old endemic rodents (Muroidea: Murinae)

Rowe, Kevin C.; Reno, Michael L.; Richmond, Daniel; Adkins, Ronald M.; Steppan, Scott J.

doi:10.1016/j.ympev.2008.01.001

Cited by 189 publications

(295 citation statements)

References 73 publications

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“…TTO, T. tokunoshimensis chromosome tokunoshimensis generated by chromosome painting (Nakamura et al 2007): MMU1b/17a/17e, a single segment of MMU14, and the two distinct chromosomal segments of MMU15 occurred in T. muenninki, whereas MMU1b/17a, two distinct chromosomal segments of MMU14, and a single segment of MMU15 occurred in T. osimensis and T. tokunoshimensis. The former segments found in T. muenninki are also conserved in the ancestral karyotype of the genus Apodemus (Matsubara et al 2004), which is the most closely related group to the genus Tokudaia in Murinae (Michaux et al 2002;Sato and Suzuki 2004;Rowe et al 2008), suggesting that the ancestor of genus Tokudaia might have the same segments as T. muenninki, MMU1b/17a/17e, two distinct chromosomal segments of MMU14 and a single segment of MMU15. Therefore, we have demonstrated that the ancestral karyotype of the genus Tokudaia had a diploid chromosome number of 48 and contained the following chromosomes that are homologous to mouse: 1a, 1b/17a/ 17e, 2, 3, 4, 5a, 5b/11a, 5c/6, 7/19, 8a, 8b, 9, 10a, 10b/ 17b, 10c/17c, 11b/16a, 12/17d, 13a, 13b/15a, 14, 15b, 16b, 18, X, and Y (Fig.…”

Section: Ancestral Karyotype Of the Genus Tokudaiamentioning

confidence: 92%

The Y chromosome of the Okinawa spiny rat, Tokudaia muenninki, was rescued through fusion with an autosome

Murata

Yamada

Kawauchi³

et al. 2011

Chromosome Res

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The genus Tokudaia comprises three species, two of which have lost their Y chromosome and have an XO/XO sex chromosome constitution. Although Tokudaia muenninki (Okinawa spiny rat) retains the Y chromosome, both sex chromosomes are unusually large. We conducted a molecular cytogenetic analysis to characterize the sex chromosomes of T. muenninki. Using crossspecies fluorescence in situ hybridization (Zoo-FISH), we found that both short arms of the T. muenninki sex chromosomes were painted by probes from mouse chromosomes 11 and 16. Comparative genomic hybridization analysis was unable to detect sex-specific regions in the sex chromosomes because both sex probes highlighted the large heterochromatic blocks on the Y chromosome as well as five autosomal pairs. We then performed comparative FISH mapping using 29 mouse complementary DNA (cDNA) clones of the 22 X-linked genes and the seven genes linked to mouse chromosome 11 (whose homologue had fused to the sex chromosomes), and FISH mapping using two T. muenninki cDNA clones of the Y-linked genes. This analysis revealed that the ancestral gene order on the long arm of the X chromosome and the centromeric region of the short arm of the Y chromosome were conserved. Whereas six of the mouse chromosome 11 genes were also mapped to Xp and Yp, in addition, one gene, CBX2, was also mapped to Xp, Yp, and chromosome 14 in T. muenninki. CBX2 is the candidate gene for the novel sex determination system in the two other species of Tokudaia, which lack a Y chromosome and SRY gene. Overall, these results indicated that the Y chromosome of T. muenninki avoided a loss event, which occurred in an ancestral lineage of T. osimensis and T. tokunoshimensis, through fusion with an autosome. Despite retaining the Y chromosome, sex determination Chromosome Res (2012) 20:111-125

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Section: Ancestral Karyotype Of the Genus Tokudaiamentioning

confidence: 92%

The Y chromosome of the Okinawa spiny rat, Tokudaia muenninki, was rescued through fusion with an autosome

Murata

Yamada

Kawauchi³

et al. 2011

Chromosome Res

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“…Between 50,000 and 60,000 y ago, people left Africa, crossing into southwest Asia (2). From there they spread rapidly through southern Eurasia, reaching Australia by 45,000 y ago, a feat that only one other terrestrial mammal (a murid rodent) was able to accomplish (3). Soon after this, people penetrated far north, reaching the latitude of Moscow by 40,000 y ago and the Arctic Ocean by 30,000 y ago.…”

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confidence: 99%

The cultural niche: Why social learning is essential for human adaptation

Boyd

Richerson

Henrich

2011

Proc. Natl. Acad. Sci. U.S.A.

963

766

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In the last 60,000 y humans have expanded across the globe and now occupy a wider range than any other terrestrial species. Our ability to successfully adapt to such a diverse range of habitats is often explained in terms of our cognitive ability. Humans have relatively bigger brains and more computing power than other animals, and this allows us to figure out how to live in a wide range of environments. Here we argue that humans may be smarter than other creatures, but none of us is nearly smart enough to acquire all of the information necessary to survive in any single habitat. In even the simplest foraging societies, people depend on a vast array of tools, detailed bodies of local knowledge, and complex social arrangements and often do not understand why these tools, beliefs, and behaviors are adaptive. We owe our success to our uniquely developed ability to learn from others. This capacity enables humans to gradually accumulate information across generations and develop well-adapted tools, beliefs, and practices that are too complex for any single individual to invent during their lifetime.cognitive niche | cultural evolution | human evolution | human adaptation | intelligence

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“…native rodents, Figure S2 I-J ). This result reflects the fact that Australia harbours a unique fauna within which convergence with other faunas of the world has occurred repeatedly through evolutionary time, and is not restricted to one particular clade [29,30]. Interestingly, we did not recover extreme cases of assemblage convergence in Madagascar, while it is known that it occurred in some endemic groups to the island (e.g.…”

Section: Europe Pmc Funders Author Manuscriptsmentioning

confidence: 54%

“…Importantly, this result is recovered across all our sensitivity analysis ( Figure S2-3), demonstrating that Australia shows a strong and recurrent pattern of convergence. This is due to the fact that Australia has experienced multiple adaptive radiations during its long geological isolation [28][29][30]. In particular, Australia's mammalian fauna is dominated by marsupials, a clade for which we found strong similarities with placental species in the species-level analyses (Figure 1 and S1) and that significantly contributes to the extreme Australian assemblage convergence ( Figure S2 K ).…”

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confidence: 98%

The Geography of Ecological Niche Evolution in Mammals

et al. 2017

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SummaryConvergent adaptive evolution of species' ecological niches -i.e. the appearance of similar niches in independent lineages-is the result of natural selection acting on niche-related species traits ('traits' hereafter) and contrasts with neutral evolution [1][2][3][4]. While trait convergences are recognized as being of importance at the species scale, we still know little about the impact of species convergence on the overall trait and niche structure of entire biotas at large spatial scales [5]. Here, we map the convergent evolution of four traits (diet, body-mass, activity cycle and foraging strata) for mammal species and assemblages (defined at 200x200km resolution) at a global scale. Using data on the geographic distributions, traits, and phylogenetic relationships of species and by comparing observed patterns of trait β-diversity to evolutionary neutral expectations, we show that trait convergence is not restricted to particular lineages, but scales up to entire assemblages (i.e. whole species communities). We find region-wide biota convergence in traits between regions with similar climates, particularly between Australia and other continents.Corresponding author (and lead author): Mazel, Florent, flo.mazel@gmail.com. The authors declare no conflicts of interest. Author contributionsJR formatted the distribution data. FM conceived the study, with advices from SL, ROW and WT. FM performed all analyses, with help of ROW and MG. FM interpreted the results with help of ROW, GFF, SL and WT. FM & WT wrote the first version of the manuscript and all authors contributed to revisions. Pairs of assemblages that show trait divergence often involve arctic regions where rapid evolutionary changes occurred in response to extreme climatic constraints. By integrating both macro-ecological and macro-evolutionary approaches into a single framework, our study quantifies the crucial role of evolutionary processes such as natural selection in the spatial distribution and structure of large-scale species assemblages. Europe PMC Funders Group KeywordsCommunity convergence; Community divergence; Marsupials; trait beta-diversity; functional betadiversity; neutral evolution; Brownian motion Results and DiscussionConvergent evolution caused by natural selection occurs when independent lineages that experience the same environmental constraints evolve similar morphological, physiological and/or behavioural traits [1,4], ultimately leading them to occupy similar ecological niches. Parallelism, where similar trait changes occur in closely-related ancestors, is sometimes distinguished from convergence because it usually occurs at a smaller phylogenetic scale. However, parallelism and convergence are part of a continuum, hampering any clear distinction among them [1,4], thus, we use the term convergence for all phylogenetic scales (as proposed by ref [4], 'parallelism' should be restricted to characterize the degree of molecular similarities underlying phenotypic convergences). Convergent evolution leads to higher ecological niche...

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Pliocene colonization and adaptive radiations in Australia and New Guinea (Sahul): Multilocus systematics of the old endemic rodents (Muroidea: Murinae)

Cited by 189 publications

References 73 publications

The Y chromosome of the Okinawa spiny rat, Tokudaia muenninki, was rescued through fusion with an autosome

The Y chromosome of the Okinawa spiny rat, Tokudaia muenninki, was rescued through fusion with an autosome

The cultural niche: Why social learning is essential for human adaptation

The Geography of Ecological Niche Evolution in Mammals

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