Oceanic islands of Wallacea as a source for dispersal and diversification of murine rodents

Rowe, Kevin C.; Achmadi, Anang S.; Fabre, Pierre‐Henri; Schenk, John J.; Steppan, Scott J.; Esselstyn, Jacob A.

doi:10.1111/jbi.13720

Cited by 50 publications

(115 citation statements)

References 93 publications

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“…Our estimation for the origin of Rattus based on mitogenomes, 2.82–3.85 Mya, is consistent with other representative studies, which included additional nuclear markers: 2.9–3.6 Mya in Steppan and Schenk (2017) , ~2.6 Mya in Rowe et al (2019) and 2.5–3.3 Mya in Fabre et al (2013) . The highland endemics Rattus hoogerwerfi and R. korinchi are sister taxa coalescing on relatively long branches of the tree, with a common ancestor at around 1.3 Mya, and they are peripheral to the Rattus rattus complex ( Figures 2 and 3 ).…”

Section: Discussionsupporting

confidence: 91%

“…A lineage from this complex, R. mindorensis , even seems to cross Huxley’s line into Mindoro Island, Philippines ( Figure 5 ). Another highlight, already identified in Fabre et al (2013) and Rowe et al (2019) , is the origin of R. hoffmanni in Wallacea from continental Asia without any extant Sundaic stepping lineage, likely also indicating extinctions of other Rattus in Sundaland and/or the presence of unidentified species. The cyt b sequences available for some of these taxa contained much missing data leading in some cases to their ambiguous placement in the phylogeny.…”

Section: Discussionmentioning

confidence: 89%

“…This area is part of the Indo-Pacific, a center of diversification for murines. They are an interesting model to study evolution because in their radiation across the Indo-Pacific they have occupied diverse habitats across the different archipelagos ( Fabre et al 2013 ; Rowe et al 2019 ), developing many cases of remarkable adaptive changes, such as those associated to carnivory ( Fabre et al 2017 ; Martinez et al 2018 ).…”

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confidence: 99%

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Mitogenomes Reveal Multiple Colonization of Mountains by Rattus in Sundaland

Camacho‐Sanchez

Leonard

2020

Journal of Heredity

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Tropical mountains are cradles of biodiversity and endemism. Sundaland, tropical Southeast Asia, hosts three species of Rattus endemic to elevations above 2,000 m with an apparent convergence in external morphology: Rattus korinchi and R. hoogerwerfi from Sumatra, and R. baluensis from Borneo. A fourth one, R. tiomanicus, is restricted to lowland elevations across the whole region. The origins of these endemics are little known due to the absence of a robust phylogenetic framework. We use complete mitochondrial genomes from the three high altitude Rattus, and several related species to determine their relationships, date divergences, reconstruct their history of colonization and test for selection on the mitochondrial DNA. We show that mountain colonization happened independently in Borneo (< 390 Kya) and Sumatra (~1.38 Mya), likely from lowland lineages. The origin of the Bornean endemic R. baluensis is very recent and its genetic diversity is nested within the diversity of R. tiomanicus. We found weak evidence of positive selection in the high-elevation lineages, and attributed the greater non-synonymous mutations on these branches (specially R. baluensis) to lesser purifying selection having acted on the terminal branches in the phylogeny.

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Section: Discussionsupporting

confidence: 91%

Section: Discussionmentioning

confidence: 89%

mentioning

confidence: 99%

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Mitogenomes Reveal Multiple Colonization of Mountains by Rattus in Sundaland

Camacho‐Sanchez

Leonard

2020

Journal of Heredity

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“…Biogeographic analyses based on molecular dated phylogenetic trees revealed a number of scenarios where taxa managed to cross Wallace's Line in both directions. Examples include fanged frogs (Evans et al 2003) and murine rodents (Rowe et al 2019) coming from the west, as well as birdwing butterflies (Condamine et al 2015), diving beetles (Balke et al 2009) and weevils (Tänzler et al 2014, Toussaint et al 2015 coming from the east. Despite this faunal interchange, the biotas on either side of Wallace's Line maintain a distinct composition and differ greatly from one another.…”

Section: Introductionmentioning

confidence: 99%

Transgressing Wallace's Line brings hyperdiverse weevils down to earth

et al. 2020

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Wallace's Line, located in the heart of the Indo‐Australian archipelago, has historically been hypothesized to strongly inhibit dispersal. Taxa crossing this barrier are confronted with different biota of Asian or Australian origin, respectively, but the extent to which these conditions have affected the evolution of the colonizing lineages remains largely unknown. We examined the potential correlations of body size, lifestyle and biogeographical distribution in the weevil genus Trigonopterus. These beetles are highly diverse both on foliage and in litter east of Wallace's Line but occur exclusively in leaf litter in the west. Based on a comprehensive, dated phylogeny of 303 species, we inferred nine crossing events of Wallace's Line, all from east to west. Five previously foliage‐dwelling lineages changed their lifestyle to leaf litter habitats after crossing this barrier. Our results indicate that dispersal is not more likely in edaphic lineages, but rather that abiotic and/or biotic factors may be responsible for the exclusive leaf litter habitat of Trigonopterus in Sundaland. This includes differences in climate, and the different predatory faunas of Australia‐New Guinea, Wallacea and Sundaland. A mimicry complex in New Guinea with Trigonopterus species as presumable model may be of relevance in this context.

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“…The endemic rodents of Sulawesi (Family Muridae) remain a particularly severely understudied group despite their high level of endemism (Groves, 2001;Kia et al, 2009;Desquesnes et al, 2016). To date, 48 endemic species of murid rodents have been recorded on the island (Rowe et al, 2016(Rowe et al, , 2019. Five recorded species of introduced rodents (Rattus exulans, Rattus rattus complex (Lineage IV), Rattus norvegicus, Rattus argentiventer, and Mus musculus) are encroaching on endemic species with the aid of anthropogenic habitat conversion and fragmentation (Whitten et al, 1987;Aplin et al, 2011).…”

mentioning

confidence: 99%