The Chalcidoidea bush of life – a massive radiation blurred by mutational saturation

bioRxiv (Cold Spring Harbor Laboratory), Год журнала: 2022, Номер unknown

Опубликована: Сен. 13, 2022

ABSTRACT Capturing phylogenetic signal from a massive radiation can be daunting. The superfamily Chalcidoidea is an excellent example of hyperdiverse group that has remained recalcitrant to resolution. are mostly parasitoid wasps until now included 27 families, 87 subfamilies and as many 500,000 estimated species. We combined 1007 exons obtained with Anchored Hybrid Enrichment 1048 Ultra-Conserved Elements (UCEs) for 433 taxa including all extant over 95% 356 genera chosen represent the vast diversity superfamily. Going back forth between molecular results our collective morphological biological knowledge, we detected insidious bias driven by saturation nucleotide data highlighted convergences. Our final based on concatenated analysis least saturated UCE sets (2054 loci, 284,106 sites). analyses support sister relationship Mymarommatoidea. Seven previously recognized families were not monophyletic, so foundations new classification discussed. Biology appears potentially more informative than morphology, illustrated elucidation clade plant gall associates planidial first-instar larvae. phylogeny suggests shift smaller soft-bodied larger heavily sclerotized wasps. Deep divergences in coincide increase insect fossil record, early phytophagy corresponds beginning “Angiosperm Terrestrial Revolution”. dating suggest Middle Jurassic origin 174 Ma (167.3-180.5 Ma) crown age 162.2 (153.9–169.8 Chalcidoidea. During Cretaceous, underwent rapid southern Gondwana subsequent dispersals Northern Hemisphere. This scenario discussed regard knowledge about host chalcid wasps, their Earth’s paleogeographic history.

Язык: Английский

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Extant species fail to estimate ancestral geographical ranges at older nodes in primate phylogeny

Proceedings of the Royal Society B Biological Sciences, Год журнала: 2022, Номер 289(1975)

Опубликована: Май 18, 2022

A clade's evolutionary history is shaped, in part, by geographical range expansion, sweepstakes dispersal and local extinction. rigorous understanding of historical biogeography may therefore yield insights into macroevolutionary dynamics such as adaptive radiation. Modern biogeographic analyses typically fit statistical models to molecular phylogenies, but it remains unclear whether extant species provide sufficient signal or if well-sampled phylogenies extinct taxa are necessary produce meaningful estimates past ranges. We investigated the Primates their euarchontan relatives using a novel meta-analytical phylogeny over 900 (n= 419) (n = 483) spanning entire history. Ancestral for young nodes were largely congruent with those derived from phylogeny. However, node age exerts significant effect on ancestral estimate congruence, probability inference dropped below 0.5 older than late Eocene, corresponding origins higher-level clades. Discordance was not observed alone. Fossils essential robust clades originating deep should be viewed scepticism without them.

Язык: Английский

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Comparing diversification rates in lakes, rivers, and the sea

Evolution, Год журнала: 2021, Номер 75(8), С. 2055 - 2073

Опубликована: Июнь 28, 2021

The diversity of species inhabiting freshwater relative to marine habitats is striking, given that encompass <1% Earth's water. most commonly proposed explanation for this pattern are more fragmented than habitats, allowing opportunities allopatric speciation and thus increased diversification rates in freshwater. However, may be generally faster sympatry allopatry, as illustrated by lacustrine radiations such African cichlids. Such differences between rivers lakes important consider when comparing broadly among groups. Here I compared teleost fishes marine, riverine habitats. found had net other aquatic arose rivers. Surprisingly, similar on average. Biogeographic models suggest evolutionarily unstable, explaining the dearth spite their rapid diversification. Collectively, these results strong rate unlikely explain paradox. Instead, attributable comparable amount time spent over 200‐million‐year history teleosts.

Язык: Английский

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Phylogenetic inference of where species spread or split across barriers

Proceedings of the National Academy of Sciences, Год журнала: 2022, Номер 119(13)

Опубликована: Март 25, 2022

SignificanceGeography molds how species evolve in space. Strong geographical barriers to movement, for instance, both inhibit dispersal between regions and allow isolated populations diverge as new species. Weak barriers, by contrast, permit range expansion persistence. These factors present a conundrum: How strong must barrier be before between-region speciation outpaces dispersal? We designed phylogenetic model of dispersal, extinction, that allows regional features influence rates biogeographic change applied it the neotropical radiation Anolis lizards. Separation water induces threefold steeper movement than equivalent distances over land. Our will help biologists detect relationships evolutionary processes spatial contexts which they operate.

Язык: Английский

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Systematics and diversification of the Ichthyomyini (Cricetidae, Sigmodontinae) revisited: evidence from molecular, morphological, and combined approaches

PeerJ, Год журнала: 2023, Номер 11, С. e14319 - e14319

Опубликована: Янв. 13, 2023

Ichthyomyini, a morphologically distinctive group of Neotropical cricetid rodents, lacks an integrative study its systematics and biogeography. Since this tribe is crucial element the Sigmodontinae, most speciose subfamily Cricetidae, we conducted that includes recognized diversity (five genera 19 species distributed from southern Mexico to northern Bolivia). For report analyzed combined matrix composed four molecular markers (

Язык: Английский

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The evolution of wasp mimicry and biogeography in the genus Temnostoma (Diptera: Syrphidae)

Molecular Phylogenetics and Evolution, Год журнала: 2025, Номер 205, С. 108298 - 108298

Опубликована: Фев. 1, 2025

Язык: Английский

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Seeing through the hedge: Phylogenomics of Thuja (Cupressaceae) reveals prominent incomplete lineage sorting and ancient introgression for Tertiary relict flora

Cladistics, Год журнала: 2021, Номер 38(2), С. 187 - 203

Опубликована: Сен. 22, 2021

The Eastern Asia (EA) - North America (NA) disjunction is a well-known biogeographic pattern of the Tertiary relict flora; however, few studies have investigated evolutionary history this using phylogenomic approach. Here, we used 2369 single copy nuclear genes and nearly full plastomes to reconstruct small genus Thuja, which consists five disjunctly distributed species. species tree strongly supported an EA clade Thuja standishii-Thuja sutchuenensis "disjunct clade", where western NA T. plicata sister EA-eastern disjunct occidentalis-Thuja koraiensis group. Our results suggested that observed topological discordance among gene trees as well cytonuclear mainly due incomplete lineage sorting, probably facilitated by fast diversification around Early Miocene large effective population sizes ancestral lineages. Furthermore, approximately 20% genome derived from unknown might explain close resemblance its cone morphology ancient fossil Overall, our study demonstrates may not resolve interspecific relationships for taxa, more reliable will come hundreds or thousands loci, revealing complex history. This steadily improve understanding their origin evolution.

Язык: Английский

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Phylogeny of Marsdenieae (Apocynaceae, Asclepiadoideae) based on chloroplast and nuclear loci, with a conspectus of the genera

Taxon, Год журнала: 2022, Номер 71(4), С. 833 - 875

Опубликована: Март 31, 2022

Abstract A densely sampled molecular phylogeny of the pantropical, predominantly forest‐dwelling tribe Marsdenieae (Apocynaceae) is presented, including almost a quarter ca. 740 species. Sampling focused on resolving circumscription Marsdenia , which ranges from sensu Bullock with less than 10 Asian species closely related to type, M. tinctoria Forster, 300 distributed throughout range tribe, encompassing genera Cionura Dregea Gongronema Gymnema Leichhardtia Stephanotis and Wattakaka as synonyms. All analyses resolve two well‐supported clades: an Asia‐Pacific Clade that includes large epiphytic Dischidia ‐ Hoya alliance number species, among them type Cosmopolitan most rest several moderately subclades span entire geographic Marsdenieae. The position small genera, Rhyssolobium (southern Africa) Sicyocarpus (Madagascar), ambiguous. Given this topology, monophyletic s.l. would subsume all Instead, we propose classification maintains distinct genera. We revise generic circumscriptions, reducing s.str. clade Two new Gongreos gen. nov. Gongronemopsis nov., are described, nine respectively. total twenty‐six combinations, one name, six synonyms proposed. Three neotypes eleven lectotypes selected, 2nd step lectotypification carried out. Diagnostic morphological characters for identified clades discussed. Biogeographic analysis retrieves tropical Asia likely ancestral area Marsdenieae, widespread Asia‐Africa equally likely. first‐branching lineages in both major Asian; comprises sizeable radiation Pacific area, dispersals Australia New Caledonia. ( Telosma ) Africa Asia, some also Madagascar, World genus Ruehssia .

Язык: Английский

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Incorporating Topological and Age Uncertainty into Event-Based Biogeography of Sand Spiders Supports Paleo-Islands in Galapagos and Ancient Connections among Neotropical Dry Forests

Diversity, Год журнала: 2021, Номер 13(9), С. 418 - 418

Опубликована: Авг. 31, 2021

Event-based biogeographic methods, such as dispersal-extinction-cladogenesis, have become increasingly popular for attempting to reconstruct the history of organisms. Such methods employ distributional data sampled species and a dated phylogenetic tree estimate ancestral distribution ranges. Because input is often single consensus tree, uncertainty in topology age estimates are rarely accounted for, even when they may affect outcome estimates. Even uncertainties taken into account ranges, usually ignored researchers compare competing hypotheses. We explore effect incorporating this analysis 21 sand spiders (Sicariidae: Sicarius) from Neotropical xeric biomes, based on total-evidence phylogeny including complete sampling genus. Using custom R script, we ages by estimating ranges over sample trees posterior Bayesian analysis, using stochastic maps. This approach allows counting events dispersal among areas, lineages through time per area, testing hypotheses, while not overestimating confidence topology. Including indicates that Sicarius dispersed Galapagos Islands archipelago was formed paleo-islands now submerged; model comparison strongly favors scenario where took place before current islands emerged. also investigated past connections currently disjunct dry forests; failing topological underestimates possible Caatinga Andean forests favor Caribbean + Mesoamerican forests. Additionally, find models founder-event speciation parameter (“+J”) more prone suffer overconfidence effects alleviated maps, increasing similarity inference between with or without parameter. argue hypothesis-testing valuable should be commonplace presence rogue taxa wide intervals estimates, especially speciation.

Язык: Английский

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Himalayan orogeny and monsoon intensification explain species diversification in an endemic ginger (Hedychium: Zingiberaceae) from the Indo-Malayan Realm

Molecular Phylogenetics and Evolution, Год журнала: 2022, Номер 170, С. 107440 - 107440

Опубликована: Фев. 19, 2022

Язык: Английский

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