Phylogenetic diversity, types of endemism and the evolutionary history of New World bats

Ecography ◽  
2018 ◽  
Vol 41 (12) ◽  
pp. 1955-1966 ◽  
Author(s):  
Camilo López-Aguirre ◽  
Suzanne J. Hand ◽  
Shawn W. Laffan ◽  
Michael Archer
Keyword(s):  
Evolutionary History ◽  
Phylogenetic Diversity ◽  
New World ◽  
History Of

The genus Capsicum (Solanaceae) in Africa

Bothalia ◽  
1983 ◽  
Vol 14 (3/4) ◽  
pp. 845-848 ◽  
Author(s):  
W. H. Eshbaugh
Keyword(s):  
Wild Species ◽  
Evolutionary History ◽  
New World ◽  
Slave Trade ◽  
Old World ◽  
Trade Routes ◽  
Local Phenomenon ◽  
History Of ◽  
Genus Capsicum ◽  
Large Acreage

The genus Capsicum (Solanaceae) includes approximately 20 wild species and 4-5 domesticated taxa commonly referred to as ‘chilies’ or ‘peppers’. The pre-Colombian distribution of the genus was New World. The evolutionary history of the genus is now envisaged as including three distinct lines leading to the domesticated taxa. The route of Capsicum to the Old World is thought to have followed three different courses. First, explorers introduced it to Europe with secondary introduction into Africa via further exploratory expeditions; second, botanical gardens played a major role in introduction; and third, introduction followed the slave trade routes. Today, pepper production in Africa is of two types, vegetable and spice. Statistical profiles on production are difficult to interpret, but the data available indicate that Nigeria, Egypt, Tunisia and Ghana are the leading producers. Production is mainly a local phenomenon and large acreage is seldom devoted to the growing of peppers. The primary peppers in Africa are C.  annuum and C.  frutescens.

scholarly journals Old World and New World Phasmatodea: Phylogenomics Resolve the Evolutionary History of Stick and Leaf Insects

2019 ◽  
Vol 7 ◽  
Author(s):  
Sabrina Simon ◽  
Harald Letsch ◽  
Sarah Bank ◽  
Thomas R. Buckley ◽  
Alexander Donath ◽  
...  
Keyword(s):  
Evolutionary History ◽  
New World ◽  
Old World ◽  
History Of

Evolutionary history of New World ticks of the genus Dermacentor (Ixodida: Ixodidae), and the origin of D. variabilis

2019 ◽  
Vol 127 (4) ◽  
pp. 863-875 ◽  
Author(s):  
Paula Lado ◽  
Hans Klompen
Keyword(s):  
North America ◽  
Evolutionary History ◽  
New World ◽  
Dermacentor Variabilis ◽  
Eastern North America ◽  
Western North America ◽  
Land Bridge ◽  
Phylogenetic Reconstructions ◽  
History Of ◽  
Migration Event

Abstract This study integrates biogeographical and phylogenetic data to determine the evolutionary history of the New World Dermacentor, and the origin of D. variabilis. The phylogenetic reconstructions presented here strongly support the hypothesis of an Afrotropical origin for Dermacentor, with later dispersal to Eurasia and the Nearctic. Phylogenetic and biogeographical data suggest that the genus reached the New World through the Beringia land bridge, from south-east Asia. The monophyly of the genus is supported, and most of the New World Dermacentor species appear as monophyletic. Dermacentor occidentals constitutes the sister lineage of D. variabilis, and the latter is subdivided into two well-supported clades: an eastern and a western clade. The western clade is genetically more variable than the eastern. The genus Dermacentor probably originated in Africa, and dispersed to the Palearctic and then to the New World through the Beringian route. Dermacentor variabilis appears to have originated in western North America, and then dispersed to eastern North America, probably in a single migration event.

The evolutionary history of Drosophila buzzatti. XXVI. Macrogeographic patterns of inversion polymorphism in New World populations

1995 ◽  
Vol 8 (3) ◽  
pp. 369-384 ◽  
Author(s):  
Esteban Hasson ◽  
Constantina Rodriguez ◽  
Juan J. Fanara ◽  
Horacio Naveira ◽  
Osvaldo A. Reig ◽  
...  
Keyword(s):  
Evolutionary History ◽  
New World ◽  
Inversion Polymorphism ◽  
History Of

scholarly journals How global extinctions impact regional biodiversity in mammals

2011 ◽  
Vol 8 (2) ◽  
pp. 222-225 ◽  
Author(s):  
Shan Huang ◽  
T. Jonathan Davies ◽  
John L. Gittleman
Keyword(s):  
Evolutionary History ◽  
Phylogenetic Diversity ◽  
Spatial Scales ◽  
Spatial Location ◽  
Ecosystem Processes ◽  
Biodiversity Hotspots ◽  
Species Assemblage ◽  
Species Extinction ◽  
History Of ◽  
And Function

Phylogenetic diversity (PD) represents the evolutionary history of a species assemblage and is a valuable measure of biodiversity because it captures not only species richness but potentially also genetic and functional diversity. Preserving PD could be critical for maintaining the functional integrity of the world's ecosystems, and species extinction will have a large impact on ecosystems in areas where the ecosystem cost per species extinction is high. Here, we show that impacts from global extinctions are linked to spatial location. Using a phylogeny of all mammals, we compare regional losses of PD against a model of random extinction. At regional scales, losses differ dramatically: several biodiversity hotspots in southern Asia and Amazonia will lose an unexpectedly large proportion of PD. Global analyses may therefore underestimate the impacts of extinction on ecosystem processes and function because they occur at finer spatial scales within the context of natural biogeography.

scholarly journals RecPD: A Recombination-Aware Measure of Phylogenetic Diversity

2021 ◽  
Author(s):  
Cedoljub Bundalovic-Torma ◽  
Darrell Desveaux ◽  
David S Guttman
Keyword(s):  
Pseudomonas Syringae ◽  
Evolutionary History ◽  
Phylogenetic Diversity ◽  
Evolutionary Dynamics ◽  
Gene Families ◽  
Ancestral State ◽  
History Of ◽  
Preliminary Study ◽  
Potential Impact ◽  
Study Type

A critical step in studying biological features (e.g., genetic variants, gene families, metabolic capabilities, or taxa) underlying traits or outcomes of interest is assessing their diversity and distribution. Accurate assessments of these patterns are essential for linking features to traits or outcomes and understanding their functional impact. Consequently, it is of crucial importance that the metrics employed for quantifying feature diversity can perform robustly under any evolutionary scenario. However, the standard metrics used for quantifying and comparing the distribution of features, such as prevalence, phylogenetic diversity, and related approaches, either do not take into consideration evolutionary history, or assume strictly vertical patterns of inheritance. Consequently, these approaches cannot accurately assess diversity for features that have undergone recombination or horizontal transfer. To address this issue, we have devised RecPD, a novel recombination-aware phylogenetic-diversity metric for measuring the distribution and diversity of features under all evolutionary scenarios. RecPD utilizes ancestral-state reconstruction to map the presence / absence of features onto ancestral nodes in a species tree, and then identifies potential recombination events in the evolutionary history of the feature. We also derive a number of related metrics from RecPD that can be used to assess and quantify evolutionary dynamics and correlation of feature evolutionary histories. We used simulation studies to show that RecPD reliably identifies evolutionary histories under diverse recombination and loss scenarios. We then apply RecPD in a real-world scenario in a preliminary study type III effector protein families secreted by the plant pathogenic bacterium Pseudomonas syringae and demonstrate that prevalence is an inadequate metric that obscures the potential impact of recombination. We believe RecPD will have broad utility for revealing and quantifying complex evolutionary processes for features at any biological level.

Diversity and preserved shell coloration patterns of Miocene Conidae (Neogastropoda) from an exposure of the Gatun Formation, Colón Province, Panama

2018 ◽  
Vol 92 (5) ◽  
pp. 804-837 ◽  
Author(s):  
Jonathan R. Hendricks
Keyword(s):  
Evolutionary History ◽  
Phylogenetic Diversity ◽  
Feeding Habits ◽  
Shell Morphology ◽  
Snail Species ◽  
Cone Snail ◽  
Phylogenetic Studies ◽  
Biogeographic History ◽  
History Of ◽  
Coloration Patterns

AbstractExtant members of the neogastropod family Conidae (cone snails) are renowned for their often dazzling shell coloration patterns and venomous feeding habits. Many cone snail species have also been described from the fossil record, but to date have been little used to understand the evolutionary history of extant clades. The cone snail fauna of the Miocene Gatun Formation of Colón Province, Panama is especially important for understanding the temporal and biogeographic history of tropical American Conidae. Intensive, focused collecting from an exposure of the lower Gatun Formation (deposited ca. 11–10 Ma) resulted in the discovery of nearly 900 specimens of Conidae. Remarkably, many of these well-preserved specimens exhibit revealed coloration patterns when exposed to ultraviolet light. The fluorescing coloration patterns were used in conjunction with other features of shell morphology to differentiate species and, in most cases, evaluate their potential relationships to members of the extant tropical American fauna. Nine species are fully described from this locality, one of which is recognized as new:Conus(Stephanoconus)woodringin. sp. At least one, and perhaps more, additional Conidae species are also present at the study locality. The diversity of this Conidae fauna is considered moderate relative to other recently analyzed tropical American fossil assemblages. The phylogenetic diversity of the assemblage, however, is noteworthy: six of the ten species can be confidently assigned to six different clades of extant Conidae, providing potentially useful calibration points for future phylogenetic studies.http://zoobank.org/8fe00c31-8f3f-4514-85af-29068e468cd3

scholarly journals Phylogeography of the ‘cosmopolitan’ orb-weaver Argiope trifasciata (Araneae: Araneidae)

2020 ◽  
Vol 131 (1) ◽  
pp. 61-75
Author(s):  
Christoph Abel ◽  
Jutta M Schneider ◽  
Matjaž Kuntner ◽  
Danilo Harms
Keyword(s):  
Species Delimitation ◽  
Evolutionary History ◽  
New World ◽  
Phylogenetic Analyses ◽  
Single Species ◽  
Spider Species ◽  
Evolutionary Origins ◽  
History Of ◽  
Argiope Trifasciata ◽  
Species Taxonomy

Abstract Few spider species show truly cosmopolitan distributions. Among them is the banded garden spider Argiope trifasciata, which is reported from six continents across major climatic gradients and geographical boundaries. In orb-weaver spiders, such global distributions might be a result of lively dispersal via ballooning. However, wide distributions might also be artefactual, owing to our limited understanding of species taxonomy. To test the hypothesis that A. trifasciata might be a complex of cryptic species with more limited geographical ranges, we investigated the biogeographical structure and evolutionary history of A. trifasciata through a combination of time-calibrated phylogenetic analyses (57 terminals and three genes), ancestral range reconstruction and species delimitation methods. Our results strongly suggest that A. trifasciata as currently defined is not a single species. Its populations fall into five reciprocally monophyletic clades that are genetically distinct and have evolutionary origins in the Plio-Pleistocene. These clades are confined to East Asia, temperate Australia, Hawaii, the New World and the Old World (Africa and most of the Palaearctic). Our results provide the basis for future investigation of morphological and/or ecological disparity between the populations that are likely to represent species, in addition to examinations of the attributes and dispersal modes of these species.

scholarly journals Specificity in the symbiotic association between fungus-growing ants and protective Pseudonocardia bacteria

2010 ◽  
Vol 278 (1713) ◽  
pp. 1814-1822 ◽  
Author(s):  
Matías J. Cafaro ◽  
Michael Poulsen ◽  
Ainslie E. F. Little ◽  
Shauna L. Price ◽  
Nicole M. Gerardo ◽  
...  
Keyword(s):  
Evolutionary History ◽  
Phylogenetic Diversity ◽  
Antibiotic Production ◽  
Symbiotic Association ◽  
Free Living ◽  
Ant Colonies ◽  
History Of ◽  
Fungus Growing Ants ◽  
Related Fungus

Fungus-growing ants (tribe Attini) engage in a mutualism with a fungus that serves as the ants' primary food source, but successful fungus cultivation is threatened by microfungal parasites (genus Escovopsis ). Actinobacteria (genus Pseudonocardia ) associate with most of the phylogenetic diversity of fungus-growing ants; are typically maintained on the cuticle of workers; and infection experiments, bioassay challenges and chemical analyses support a role of Pseudonocardia in defence against Escovopsis through antibiotic production. Here we generate a two-gene phylogeny for Pseudonocardia associated with 124 fungus-growing ant colonies, evaluate patterns of ant– Pseudonocardia specificity and test Pseudonocardia antibiotic activity towards Escovopsis . We show that Pseudonocardia associated with fungus-growing ants are not monophyletic: the ants have acquired free-living strains over the evolutionary history of the association. Nevertheless, our analysis reveals a significant pattern of specificity between clades of Pseudonocardia and groups of related fungus-growing ants. Furthermore, antibiotic assays suggest that despite Escovopsis being generally susceptible to inhibition by diverse Actinobacteria, the ant-derived Pseudonocardia inhibit Escovopsis more strongly than they inhibit other fungi, and are better at inhibiting this pathogen than most environmental Pseudonocardia strains tested. Our findings support a model that many fungus-growing ants maintain specialized Pseudonocardia symbionts that help with garden defence.

scholarly journals Convergent evolution of olfactory and thermoregulatory capacities in small amphibious mammals

2020 ◽  
Vol 117 (16) ◽  
pp. 8958-8965 ◽  
Author(s):  
Quentin Martinez ◽  
Julien Clavel ◽  
Jacob A. Esselstyn ◽  
Anang S. Achmadi ◽  
Camille Grohé ◽  
...  
Keyword(s):  
Evolutionary History ◽  
Phylogenetic Diversity ◽  
Soft Tissues ◽  
Three Dimensional ◽  
Aquatic Environments ◽  
Evolutionary Models ◽  
Trade Off ◽  
Avoidance Behaviors ◽  
Vital Functions ◽  
History Of

Olfaction and thermoregulation are key functions for mammals. The former is critical to feeding, mating, and predator avoidance behaviors, while the latter is essential for homeothermy. Aquatic and amphibious mammals face olfactory and thermoregulatory challenges not generally encountered by terrestrial species. In mammals, the nasal cavity houses a bony system supporting soft tissues and sensory organs implicated in either olfactory or thermoregulatory functions. It is hypothesized that to cope with aquatic environments, amphibious mammals have expanded their thermoregulatory capacity at the expense of their olfactory system. We investigated the evolutionary history of this potential trade-off using a comparative dataset of three-dimensional (3D) CT scans of 189 skulls, capturing 17 independent transitions from a strictly terrestrial to an amphibious lifestyle across small mammals (Afrosoricida, Eulipotyphla, and Rodentia). We identified rapid and repeated loss of olfactory capacities synchronously associated with gains in thermoregulatory capacity in amphibious taxa sampled from across mammalian phylogenetic diversity. Evolutionary models further reveal that these convergences result from faster rates of turbinal bone evolution and release of selective constraints on the thermoregulatory-olfaction trade-off in amphibious species. Lastly, we demonstrated that traits related to vital functions evolved faster to the optimum compared to traits that are not related to vital functions.

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