Molecular time scale of diversification of feeding strategy and morphology in New World Leaf-Nosed Bats (Phyllostomidae): a phylogenetic perspective

Baker, Robert J.; Bininda‐Emonds, Olaf R. P.; Meluk, Hugo Mantilla; Porter, Calvin A.; Bussche, Ronald A. Van Den

doi:10.1017/cbo9781139045599.012

Cited by 81 publications

(138 citation statements)

References 47 publications

Supporting

Mentioning

103

Contrasting

Unclassified

Order By: Relevance

“…The branch lengths used were the divergence time estimates obtained from Baker et al . (2010) [3]. This phylogeny has been independently corroborated in a recent paper [4], although the time estimates are slightly different between the publications.…”

Section: Methodssupporting

confidence: 61%

Evolutionary patterns and processes in the radiation of phyllostomid bats

2011

View full text Add to dashboard Cite

BackgroundThe phyllostomid bats present the most extensive ecological and phenotypic radiation known among mammal families. This group is an important model system for studies of cranial ecomorphology and functional optimisation because of the constraints imposed by the requirements of flight. A number of studies supporting phyllostomid adaptation have focused on qualitative descriptions or correlating functional variables and diet, but explicit tests of possible evolutionary mechanisms and scenarios for phenotypic diversification have not been performed. We used a combination of morphometric and comparative methods to test hypotheses regarding the evolutionary processes behind the diversification of phenotype (mandible shape and size) and diet during the phyllostomid radiation.ResultsThe different phyllostomid lineages radiate in mandible shape space, with each feeding specialisation evolving towards different axes. Size and shape evolve quite independently, as the main directions of shape variation are associated with mandible elongation (nectarivores) or the relative size of tooth rows and mandibular processes (sanguivores and frugivores), which are not associated with size changes in the mandible. The early period of phyllostomid diversification is marked by a burst of shape, size, and diet disparity (before 20 Mya), larger than expected by neutral evolution models, settling later to a period of relative phenotypic and ecological stasis. The best fitting evolutionary model for both mandible shape and size divergence was an Ornstein-Uhlenbeck process with five adaptive peaks (insectivory, carnivory, sanguivory, nectarivory and frugivory).ConclusionsThe radiation of phyllostomid bats presented adaptive and non-adaptive components nested together through the time frame of the family's evolution. The first 10 My of the radiation were marked by strong phenotypic and ecological divergence among ancestors of modern lineages, whereas the remaining 20 My were marked by stasis around a number of probable adaptive peaks. A considerable amount of cladogenesis and speciation in this period is likely to be the result of non-adaptive allopatric divergence or adaptations to peaks within major dietary categories.

show abstract

Section: Methodssupporting

confidence: 61%

Evolutionary patterns and processes in the radiation of phyllostomid bats

2011

View full text Add to dashboard Cite

show abstract

“…One of the major challenges to understanding bat evolution is the quantitative evaluation of morphological disparity in extant taxa and the lack of fossils needed to trace evolutionary modifications. Within the order Chiroptera, the New World leaf‐nosed bats (Phyllostomidae) have been extensively studied for their ecology, anatomy, and phylogeny, making them an exceptional model for examining mechanisms underlying morphological diversification. As a group, they have evolved an extraordinary array of distinct faces and skulls (Figure ) adapted for consuming many different food types such as insects, fruit, nectar, pollen, small vertebrates, and blood .…”

Section: Introductionmentioning

confidence: 99%

Peramorphosis, an evolutionary developmental mechanism in neotropical bat skull diversity

Camacho

Heyde

Bhullar

et al. 2019

Developmental Dynamics

View full text Add to dashboard Cite

Background The neotropical leaf‐nosed bats (Chiroptera, Phyllostomidae) are an ecologically diverse group of mammals with distinctive morphological adaptations associated with specialized modes of feeding. The dramatic skull shape changes between related species result from changes in the craniofacial development process, which brings into focus the nature of the underlying evolutionary developmental processes. Results In this study, we use three‐dimensional geometric morphometrics to describe, quantify, and compare morphological modifications unfolding during evolution and development of phyllostomid bats. We examine how changes in development of the cranium may contribute to the evolution of the bat craniofacial skeleton. Comparisons of ontogenetic trajectories to evolutionary trajectories reveal two separate evolutionary developmental growth processes contributing to modifications in skull morphogenesis: acceleration and hypermorphosis. Conclusion These findings are consistent with a role for peramorphosis, a form of heterochrony, in the evolution of bat dietary specialists.

show abstract

“…This lineage diverged from a sister group, Lampronycteris , approximately 23.2 million years ago (MYA) [2-5]. The Sanborn review [6] recognized 13 species classified in six subgenera: Glyphonycteris, Lampronycteris, Micronycteris, Neonycteris, Trinycteris and Xenoctenes.…”

Section: Introductionmentioning

confidence: 99%

Two new cytotypes reinforce that Micronycteris hirsuta Peters, 1869 does not represent a monotypic taxon

et al. 2013

View full text Add to dashboard Cite

BackgroundThe genus Micronycteris is a diverse group of phyllostomid bats currently comprising 11 species, with diploid number (2n) ranging from 26 to 40 chromosomes. The karyotypic relationships within Micronycteris and between Micronycteris and other phyllostomids remain poorly understood. The karyotype of Micronycteris hirsuta is of particular interest: three different diploid numbers were reported for this species in South and Central Americas with 2n = 26, 28 and 30 chromosomes. Although current evidence suggests some geographic differentiation among populations of M. hirsuta based on chromosomal, morphological, and nuclear and mitochondrial DNA markers, the recognition of new species or subspecies has been avoided due to the need for additional data, mainly chromosomal data.ResultsWe describe two new cytotypes for Micronycteris hirsuta (MHI) (2n = 26 and 25, NF = 32), whose differences in diploid number are interpreted as the products of Robertsonian rearrangements. C-banding revealed a small amount of constitutive heterochromatin at the centromere and the NOR was located in the interstitial portion of the short arm of a second pair, confirmed by FISH. Telomeric probes hybridized to the centromeric regions and weakly to telomeric regions of most chromosomes. The G-banding analysis and chromosome painting with whole chromosome probes from Carollia brevicauda (CBR) and Phyllostomus hastatus (PHA) enabled the establishment of genome-wide homologies between MHI, CBR and PHA.ConclusionsThe karyotypes of Brazilian specimens of Micronycteris hirsuta described here are new to Micronycteris and reinforce that M. hirsuta does not represent a monotypic taxon. Our results corroborate the hypothesis of karyotypic megaevolution within Micronycteris, and strong evidence for this is that the entire chromosome complement of M. hirsuta was shown to be derivative with respect to species compared in this study.

show abstract

Molecular time scale of diversification of feeding strategy and morphology in New World Leaf-Nosed Bats (Phyllostomidae): a phylogenetic perspective

Cited by 81 publications

References 47 publications

Evolutionary patterns and processes in the radiation of phyllostomid bats

Evolutionary patterns and processes in the radiation of phyllostomid bats

Peramorphosis, an evolutionary developmental mechanism in neotropical bat skull diversity

Two new cytotypes reinforce that Micronycteris hirsuta Peters, 1869 does not represent a monotypic taxon

Contact Info

Product

Resources

About