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Hu Y, Jia F, Hu L, Wu C, Tian T, Li T, Chen B. Comparative mitogenome research revealed the phylogenetics and evolution of the superfamily Tenebrionoidea (Coleoptera: Polyphage). Ecol Evol 2024; 14:e11520. [PMID: 38932962 PMCID: PMC11199344 DOI: 10.1002/ece3.11520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 05/13/2024] [Accepted: 05/20/2024] [Indexed: 06/28/2024] Open
Abstract
Despite the worldwide distribution and rich diversity of the superfamily Tenebrionoidea, the knowledge of the mitochondrial genomes (mtgenome) characteristics of the superfamily is still very limited, and its phylogenetics and evolution remain unresolved. In the present study, we newly sequenced mtgenomes from 19 species belonging to Tenebrionoidea, and a total of 90 mitochondrial genomes from 16 families of Tenebrionoidea were used for phylogenetic analysis. There exist 37 genes for all 82 species of complete mtgenomes of 16 families investigated, and their characteristics are identical as reported mtgenomes of other Tenebrionoids. The Ka/Ks analysis suggests that all 13 PCGs have undergone a strong purifying selection. The phylogenetic analysis suggests the monophyly of Mordellidae, Meloidae, Oedemeridae, Pyrochroidae, Salpingidae, Scraptiidae, Lagriidae, and Tenebrionidae, and the Mordellidae is close to the Ripiphoridae. The "Tenebrionidae clade" and "Meloidae clade" are monophyletic, and both of them are sister groups. In the "Meloidae clade," Meloidae is close to Anthicidae. In the "Tenebrionidae clade," the family Lagriidae and Tenebrionidae are sister groups. The divergence time analysis suggests that Tenebrionoidea originated in the late Jurassic, Meloidae Mordellidae, Lagriidae, and Tenebrionidae in the Cretaceous, Oedemeridae in Paleogene. The work lays a base for the study of mtgenome, phylogenetics, and evolution of the superfamily Tenebrionoidea.
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Affiliation(s)
- Yun‐Jian Hu
- Chongqing Key Laboratory of Vector Insects, Institute of Entomology and Molecular Biology, College of Life SciencesChongqing Normal UniversityChongqingChina
| | - Feng‐Fan Jia
- Chongqing Key Laboratory of Vector Insects, Institute of Entomology and Molecular Biology, College of Life SciencesChongqing Normal UniversityChongqingChina
| | - Li Hu
- Chongqing Key Laboratory of Vector Insects, Institute of Entomology and Molecular Biology, College of Life SciencesChongqing Normal UniversityChongqingChina
| | - Chuan Wu
- Chongqing Key Laboratory of Vector Insects, Institute of Entomology and Molecular Biology, College of Life SciencesChongqing Normal UniversityChongqingChina
| | - Tian Tian
- Chongqing Key Laboratory of Vector Insects, Institute of Entomology and Molecular Biology, College of Life SciencesChongqing Normal UniversityChongqingChina
| | - Ting‐Jing Li
- Chongqing Key Laboratory of Vector Insects, Institute of Entomology and Molecular Biology, College of Life SciencesChongqing Normal UniversityChongqingChina
| | - Bin Chen
- Chongqing Key Laboratory of Vector Insects, Institute of Entomology and Molecular Biology, College of Life SciencesChongqing Normal UniversityChongqingChina
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González-Ferreiro M, García-París M, Sainz-Escudero L, López-Estrada EK. Analyses of head and thorax in Eupomphini (Meloidae) suggest that complex behaviors are not associated to changes in general shape. Integr Zool 2023; 18:949-957. [PMID: 36929152 DOI: 10.1111/1749-4877.12708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Abstract
Our results reject an association between general shape of head and thorax with defensive and courtship behaviors in the studied Eupomphini blister beetles. Instead we found that shape of thorax and head radiated in all directions of the morphospace. We also identified a radical separation between two lineages that could represent future evolutionary constraints for thorax evolution.
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Affiliation(s)
| | | | | | - E Karen López-Estrada
- Museo Nacional de Ciencias Naturales (MNCN-CSIC), Madrid, Spain
- Real Jardín Botánico (RJB-CSIC), Madrid, Spain
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3
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Chaitanya R, McGuire JA, Karanth P, Meiri S. Their fates intertwined: diversification patterns of the Asian gliding vertebrates may have been forged by dipterocarp trees. Proc Biol Sci 2023; 290:20231379. [PMID: 37583322 PMCID: PMC10427812 DOI: 10.1098/rspb.2023.1379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 07/19/2023] [Indexed: 08/17/2023] Open
Abstract
The repeated evolution of gliding in diverse Asian vertebrate lineages is hypothesized to have been triggered by the dominance of tall dipterocarp trees in the tropical forests of Southeast Asia. These dipterocarp forests have acted as both centres of diversification and climatic refugia for gliding vertebrates, and support most of their extant diversity. We predict similarities in the diversification patterns of dipterocarp trees and gliding vertebrates, and specifically test whether episodic diversification events such as rate shifts and/or mass extinctions were temporally congruent in these groups. We analysed diversification patterns in reconstructed timetrees of Asian dipterocarps, the most speciose gliding vertebrates from different classes (Draco lizards, gliding frogs and Pteromyini squirrels) and compared them with similar-sized clades of non-gliding relatives (Diploderma lizards, Philautus frogs and Callosciurinae squirrels) from Southeast Asia. We found significant declines in net-diversification rates of dipterocarps and the gliding vertebrates during the Pliocene-Pleistocene, but not in the non-gliding groups. We conclude that the homogeneity and temporal coincidence of these rate declines point to a viable ecological correlation between dipterocarps and the gliding vertebrates. Further, we suggest that while the diversification decay in dipterocarps was precipitated by post-Miocene aridification of Asia, the crises in the gliding vertebrates were induced by both events concomitantly.
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Affiliation(s)
| | - Jimmy A. McGuire
- Museum of Vertebrate Zoology and Department of Integrative Biology, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Praveen Karanth
- Centre for Ecological Sciences, Indian Institute of Science, Bangalore, Karnataka 560012, India
| | - Shai Meiri
- School of Zoology, Tel Aviv University 6997801, Tel Aviv, Israel
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4
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Rodríguez-Flores P, Macpherson E, Schnabel K, Ahyong S, Corbari L, Machordom A. Depth as a driver of evolution and diversification of ancient squat lobsters (Decapoda, Galatheoidea, Phylladiorhynchus). Mol Phylogenet Evol 2022; 171:107467. [DOI: 10.1016/j.ympev.2022.107467] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 03/09/2022] [Accepted: 03/15/2022] [Indexed: 11/28/2022]
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5
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López-Estrada EK, Sanmartín I, Uribe JE, Abalde S, Jiménez-Ruiz Y, García-París M. Mitogenomics and hidden-trait models reveal the role of phoresy and host shifts in the diversification of parasitoid blister beetles (Coleoptera: Meloidae). Mol Ecol 2022; 31:2453-2474. [PMID: 35146829 PMCID: PMC9305437 DOI: 10.1111/mec.16390] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 01/24/2022] [Accepted: 01/31/2022] [Indexed: 11/28/2022]
Abstract
Changes in life history traits are often considered speciation triggers and can have dramatic effects on the evolutionary history of a lineage. Here, we examine the consequences of changes in two life history traits, host‐type and phoresy, in the hypermetamorphic blister beetles, Meloidae. Subfamilies Nemognathinae and Meloinae exhibit a complex life cycle involving multiple metamorphoses and parasitoidism. Most genera and tribes are bee‐parasitoids, and include phoretic or nonphoretic species, while two tribes feed on grasshopper eggs. These different life strategies are coupled with striking differences in species richness among clades. We generated a mitogenomic phylogeny for Nemognathinae and Meloinae, confirming the monophyly of these two clades, and used the dated phylogeny to explore the association between diversification rates and changes in host specificity and phoresy, using state‐dependent speciation and extinction (SSE) models that include the effect of hidden traits. To account for the low taxon sampling, we implemented a phylogenetic‐taxonomic approach based on birth‐death simulations, and used a Bayesian framework to integrate parameter and phylogenetic uncertainty. Results show that the ancestral hypermetamorphic Meloidae was a nonphoretic bee‐parasitoid, and that transitions towards a phoretic bee‐parasitoid and grasshopper parasitoidism occurred multiple times. Nonphoretic bee‐parasitoid lineages exhibit significantly higher relative extinction and lower diversification rates than phoretic bee‐and grasshopper‐parasitoids, but no significant differences were found between the latter two strategies. This suggests that Orthopteran host shifts and phoresy contributed jointly to the evolutionary success of the parasitoid meloidae. We also demonstrate that SSE models can be used to identify hidden traits coevolving with the focal trait in driving a lineage's diversification dynamics.
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Affiliation(s)
- E K López-Estrada
- Museo Nacional de Ciencias Naturales (MNCN-CSIC), José Gutiérrez Abascal, 2, 28006, Madrid, España.,Real Jardín Botánico (RJB-CSIC). Plaza de Murillo, 2, 28014. Madrid, España
| | - I Sanmartín
- Real Jardín Botánico (RJB-CSIC). Plaza de Murillo, 2, 28014. Madrid, España
| | - J E Uribe
- Museo Nacional de Ciencias Naturales (MNCN-CSIC), José Gutiérrez Abascal, 2, 28006, Madrid, España
| | - S Abalde
- Museo Nacional de Ciencias Naturales (MNCN-CSIC), José Gutiérrez Abascal, 2, 28006, Madrid, España.,Centro de Estudios Avanzados de Blanes (CEAB-CSIC). Accéss, Cala Sant Francesc, 14, 17300, Blanes, España
| | - Y Jiménez-Ruiz
- Museo Nacional de Ciencias Naturales (MNCN-CSIC), José Gutiérrez Abascal, 2, 28006, Madrid, España
| | - M García-París
- Museo Nacional de Ciencias Naturales (MNCN-CSIC), José Gutiérrez Abascal, 2, 28006, Madrid, España
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Mas-Peinado P, García-París M, Ruiz JL, Buckley D. The Strait of Gibraltar is an ineffective palaeogeographic barrier for some flightless darkling beetles (Coleoptera: Tenebrionidae: Pimelia). Zool J Linn Soc 2021. [DOI: 10.1093/zoolinnean/zlab088] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Abstract
The geographic distribution of a species is shaped by its biology and by environmental and palaeogeographic factors that interact at different spatial-temporal scales, which leads to distributions and diversification patterns observed between and within lineages. The darkling beetle genus Pimelia has been diversifying for more than 31.2 Mya showing different colonization patterns after the opening of the Gibraltar Strait 5 Mya. Three of the 14 subgenera of Pimelia have populations on both sides of the Strait. Through extensive sampling and the analysis of three molecular markers, we determine levels of intra- and interspecific genetic variation, identify evolutionary lineages in subgenera, estimate their temporal origin and distribution ranges and discuss the historical basis for the geographic and diversification patterns of Pimelia around the Strait. This single geographical feature acted both as a barrier and as a dispersal route for different Pimelia species. The Strait has represented a strong barrier for the subgenus Magrebmelia since the Middle Miocene. However, the subgenera Amblyptera and Amblypteraca share repetitive signatures of post-Messinian colonization across the Strait, possibly driven by stochastic or ‘catastrophic’ events such as tsunamis. Our demographic analyses support Wallace’s hypothesis on insect dispersal stochasticity. Some taxonomic changes, including the designation of a lectotype for Pimelia maura, are also proposed.
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Affiliation(s)
- Paloma Mas-Peinado
- Departamento de Biodiversidad y Biología Evolutiva, Museo Nacional de Ciencias Naturales (MNCN-CSIC), c/ José Gutiérrez Abascal 2, 28006-Madrid, Spain
- Centro de Investigación en Biodiversidad y Cambio Global (CIBC-UAM), Facultad de Ciencias, Universidad Autónoma de Madrid, c/ Darwin 2, 28049-Madrid, Spain
| | - Mario García-París
- Departamento de Biodiversidad y Biología Evolutiva, Museo Nacional de Ciencias Naturales (MNCN-CSIC), c/ José Gutiérrez Abascal 2, 28006-Madrid, Spain
| | - José L Ruiz
- Instituto de Estudios Ceutíes, Paseo del Revellín 30, 51001-Ceuta, Spain
| | - David Buckley
- Departamento de Biodiversidad y Biología Evolutiva, Museo Nacional de Ciencias Naturales (MNCN-CSIC), c/ José Gutiérrez Abascal 2, 28006-Madrid, Spain
- Centro de Investigación en Biodiversidad y Cambio Global (CIBC-UAM), Facultad de Ciencias, Universidad Autónoma de Madrid, c/ Darwin 2, 28049-Madrid, Spain
- Departamento de Biología (Genética), Facultad de Ciencias, Universidad Autónoma de Madrid (UAM), c/ Darwin 2, 28049-Madrid, Spain
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7
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Culshaw V, Villaverde T, Mairal M, Olsson S, Sanmartín I. Rare and widespread: integrating Bayesian MCMC approaches, Sanger sequencing and Hyb-Seq phylogenomics to reconstruct the origin of the enigmatic Rand Flora genus Camptoloma. AMERICAN JOURNAL OF BOTANY 2021; 108:1673-1691. [PMID: 34550605 DOI: 10.1002/ajb2.1727] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Revised: 04/14/2021] [Accepted: 04/16/2021] [Indexed: 06/13/2023]
Abstract
PREMISE Genera that are widespread, with geographically discontinuous distributions and represented by few species, are intriguing. Is their achieved disjunct distribution recent or ancient in origin? Why are they species-poor? The Rand Flora is a continental-scale pattern in which closely related species appear codistributed in isolated regions over the continental margins of Africa. Genus Camptoloma (Scrophulariaceae) is the most notable example, comprising three species isolated from each other on the northwest, eastern, and southwest Africa. METHODS We employed Sanger sequencing of nuclear and plastid markers, together with genomic target sequencing of 2190 low-copy nuclear genes, to infer interspecies relationships and the position of Camptoloma within Scrophulariaceae by using supermatrix and multispecies-coalescent approaches. Lineage divergence times and ancestral ranges were inferred with Bayesian Markov chain Monte Carlo (MCMC) approaches. The population history was estimated with phylogeographic coalescent methods. RESULTS Camptoloma rotundifolium, restricted to Southern Africa, was shown to be a sister species to the disjunct clade formed by C. canariense, endemic to the Canary Islands, and C. lyperiiflorum, distributed in the Horn of Africa-Southern Arabia. Camptoloma was inferred to be sister to the mostly South African tribes Teedieae and Buddlejeae. Stem divergence was dated in the Late Miocene, while the origin of the extant disjunction was inferred as Early Pliocene. CONCLUSIONS The current disjunct distribution of Camptoloma across Africa was likely the result of fragmentation and extinction and/or population bottlenecking events associated with historical aridification cycles during the Neogene; the pattern of species divergence, from south to north, is consistent with the "climatic refugia" Rand Flora hypothesis.
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Affiliation(s)
- Victoria Culshaw
- Real Jardín Botánico (RJB), CSIC, Plaza de Murillo, 2, Madrid, 28014, Spain
| | - Tamara Villaverde
- Real Jardín Botánico (RJB), CSIC, Plaza de Murillo, 2, Madrid, 28014, Spain
- Department of Botany, Universidad de Almeria, Carretera Sacramento, La Cañada de San Urbano, Almeria, 04120, Spain
| | - Mario Mairal
- Department of Biodiversity, Ecology and Evolution, Universidad Complutense de Madrid, Madrid, Spain
| | - Sanna Olsson
- Department of Forest Ecology and Genetics, Forest Research Centre, INIA-CIFOR, Carretera de la Coruña km 7.5, Madrid, 28040, Spain
| | - Isabel Sanmartín
- Real Jardín Botánico (RJB), CSIC, Plaza de Murillo, 2, Madrid, 28014, Spain
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8
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Camacho AI, Mas-Peinado P, Reddy YR, Bandari E, Shaik S, Perina G, Dorda BA, Casado A, Rey I. An integrated approach to re-evaluate the validity of the family Leptobathynellidae (Crustacea: Bathynellacea). Zool J Linn Soc 2021. [DOI: 10.1093/zoolinnean/zlaa121] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
The systematic status of the controversial crustacean family Leptobathynellidae is investigated using molecular and morphological methods in this study. Partial sequences of the nuclear 18S gene are studied from 28 genera of Bathynellacea from several continents. The analysis includes some of the most plesiomorphic genera of the family Parabathynellidae, such as Billibathynella and Brevisomabathynella from Australia; Habrobathynella and Parvulobathynella from India; the diverse Iberobathynella; the cosmopolitan genus Hexabathynella; and representative genera of two subfamilies of Bathynellidae (Gallobathynellinae and Bathynellinae). We used a molecular approach to analyse the systematic relationships amongst 64 species from Europe, North America, Australia and Asia, and review the morphological characters relevant at the family level. The molecular phylogeny clearly shows the presence of three highly divergent clades that could represent the three families. This is the first molecular phylogenetic reconstruction of Bathynellacea that can be used to: (1) verify the validity of Leptobathynellidae, (2) explore the diversity of the families and (3) explore the phylogenetic relationships among families. We propose a plausible evolutionary scenario for the order Bathynellacea.
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Affiliation(s)
- Ana I Camacho
- Museo Nacional de Ciencias Naturales (CSIC), Dpto. Biodiversidad y Biología Evolutiva, José Gutiérrez Abascal, Madrid, Spain
| | - Paloma Mas-Peinado
- Museo Nacional de Ciencias Naturales (CSIC), Dpto. Biodiversidad y Biología Evolutiva, José Gutiérrez Abascal, Madrid, Spain
- Centro de Investigación en Biodiversidad y Cambio Global CIBC-UAM, Facultad de Ciencias, Universidad Autónoma de Madrid, Darwin, Madrid, Spain
| | | | - Elia Bandari
- Department of Zoology, Government Degree College, Pithapuram, A-P-, India
| | - Shabbudin Shaik
- Department of Zoology, Acharya Nagarjuna University, Nagarjunagar, India
| | - Giulia Perina
- Centre for Ecosystem Management, School of Science, Edith Cowan University,Joondalup, WA, Australia
- Western Australian Museum 49 Kew Street, Welshpool, Welshpool DC, WA, Australia
| | - Beatriz A Dorda
- Museo Nacional de Ciencias Naturales (CSIC), Dpto. Colecciones, Colección de Tejidos y ADN, José Gutiérrez Abascal, Madrid, Spain
| | - Adrian Casado
- Museo Nacional de Ciencias Naturales (CSIC), Dpto. Colecciones, Colección de Tejidos y ADN, José Gutiérrez Abascal, Madrid, Spain
| | - Isabel Rey
- Museo Nacional de Ciencias Naturales (CSIC), Dpto. Colecciones, Colección de Tejidos y ADN, José Gutiérrez Abascal, Madrid, Spain
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9
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Rosas-Ramos N, Rodríguez-Flores PC, García-París M. Proctodeal extrusion as a defensive behavioral response in blister beetles (Coleoptera: Meloidae). Naturwissenschaften 2021; 108:19. [PMID: 33900461 DOI: 10.1007/s00114-021-01728-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 03/14/2021] [Accepted: 03/21/2021] [Indexed: 11/28/2022]
Abstract
Defensive mechanisms in blister beetles (Coleoptera: Meloidae) include a wide variety of behavioral responses, chemical defense, and conspicuous external colorations. Although some of these mechanisms have been previously described, proctodeal extrusion, a defensive behavior involving the extrusion of inner abdominal membranes from the proctodeal region which appear intensely red or orange colored when the hemolymph is seen through them, has not been reported to date. Here, we tested the ability to display proctodeal extrusion in response to threat stimuli in wild populations of three blister beetle species inhabiting Central Spain: Berberomeloe majalis (Linnaeus, 1758), Berberomeloe comunero Sánchez-Vialas, García-París, Ruiz & Recuero, 2020, and Physomeloe corallifer (Germar, 1818). In addition, we observed and recorded various other defensive behaviors such as immobility, antennal threat display, autohemorrhage (reflex bleeding), defecation, and thanatosis (death feigning). The frequency at which proctodeal extrusion was observed differed among species, as did the stress intensity needed for extrusion and the probability of proctodeal extrusion in response to a particular threatening stimulus. Our findings indicate that, although proctodeal extrusion might be a widespread potential defensive mechanism in Meloidae, the ability to elicit it is not generalized across lineages. Physomeloe and Berberomeloe are endemic to the semi-arid Mediterranean region, and species adapted to such a climate would have developed strategies that limit hydric stress such as proctodeal extrusion, which mirrors the effect of autohemorrhage but without the fluid loss.
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Affiliation(s)
- Natalia Rosas-Ramos
- Museo Nacional de Ciencias Naturales (MNCN-CSIC), Madrid, Spain. .,Departamento de Biología Animal (Área de Zoología), Universidad de Salamanca, Salamanca, Spain.
| | - Paula C Rodríguez-Flores
- Museo Nacional de Ciencias Naturales (MNCN-CSIC), Madrid, Spain.,Centre D'Estudis Avançats de Blanes (CEAB-CSIC), Blanes, Spain
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Sánchez‐Vialas A, Recuero E, Jiménez‐Ruiz Y, Ruiz JL, Marí‐Mena N, García‐París M. Phylogeny of Meloini blister beetles (Coleoptera, Meloidae) and patterns of island colonization in the Western Palaearctic. ZOOL SCR 2021. [DOI: 10.1111/zsc.12474] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
| | - Ernesto Recuero
- Museo Nacional de Ciencias Naturales (MNCN‐CSIC) Madrid Spain
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11
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Phylomitogenomics provides new perspectives on the Euphasmatodea radiation (Insecta: Phasmatodea). Mol Phylogenet Evol 2020; 155:106983. [PMID: 33059069 DOI: 10.1016/j.ympev.2020.106983] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 09/11/2020] [Accepted: 10/06/2020] [Indexed: 11/20/2022]
Abstract
Phasmatodea species diversity lies almost entirely within its suborder Euphasmatodea, which exhibits a pantropical distribution and is considered to derive from a recent and rapid evolutionary radiation. To shed light on Euphasmatodea origins and diversification, we assembled the mitogenomes of 17 species from transcriptomic sequencing data and analysed them along with 22 already available Phasmatodea mitogenomes and 33 mitogenomes representing most of the Polyneoptera lineages. Maximum Likelihood and Bayesian Inference approaches retrieved consistent topologies, both showing the widespread conflict between phylogenetic approaches and traditional systematics. We performed a divergence time analysis leveraging ten fossil specimens representative of most polyneopteran lineages: the time tree obtained supports an older radiation of the clade with respect to previous hypotheses. Euphasmatodea diversification is inferred to have started ~ 187 million years ago, suggesting that the Triassic-Jurassic mass extinction and the breakup of Pangea could have contributed to the process. We also investigated Euphasmatodea mitogenomes patterns of dN, dS and dN/dS ratio throughout our time-tree, trying to characterize the selective regime which may have shaped the clade evolution.
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12
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Czekanski-Moir JE, Rundell RJ. The Ecology of Nonecological Speciation and Nonadaptive Radiations. Trends Ecol Evol 2019; 34:400-415. [DOI: 10.1016/j.tree.2019.01.012] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2018] [Revised: 01/24/2019] [Accepted: 01/28/2019] [Indexed: 01/08/2023]
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13
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Moharrek F, Sanmartín I, Kazempour-Osaloo S, Nieto Feliner G. Morphological Innovations and Vast Extensions of Mountain Habitats Triggered Rapid Diversification Within the Species-Rich Irano-Turanian Genus Acantholimon (Plumbaginaceae). Front Genet 2019; 9:698. [PMID: 30745908 PMCID: PMC6360523 DOI: 10.3389/fgene.2018.00698] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Accepted: 12/12/2018] [Indexed: 01/24/2023] Open
Abstract
The Irano-Turanian floristic region spans a topographically complex and climatically continental territory, which has served as a source of xerophytic taxa for neighboring regions and is represented by a high percent of endemics. Yet, a comprehensive picture of the abiotic and biotic factors that have driven diversification within this biota remains to be established due to the scarcity of phylogenetic studies. Acantholimon is an important component of the subalpine steppe flora of the Irano-Turanian region, containing c. 200 cushion-forming sub-shrubby pungent-leaved species. Our recent molecular phylogenetic study has led to enlarging the circumscription of this genus to include eight mono- or oligospecific genera lacking the characteristic life-form and leaves. Using the same molecular phylogeny, here we investigate the tempo and mode of diversification as well as the biogeographic patterns in this genus, to test the hypothesis that a combination of key morphological innovations and abiotic factors is behind Acantholimon high species diversity. Molecular dating analysis indicates that Acantholimon s.l. started to diversify between the Late Miocene and the Pliocene and the biogeographic analysis points to an Eastern Iran-Afghanistan origin. Macroevolutionary models support the hypothesis that the high diversity of the genus is explained by accelerated diversification rates in two clades associated with the appearance of morphological key innovations such as a cushion life-form and pungent leaves; this would have favored the colonization of water-stressed, substrate-poor mountainous habitats along the newly uplifted IT mountains during the Mio-Pliocene. Given the apparent similarity of mountain habitats for most species of Acantholimon, we hypothesize that its current high species diversity responds to a scenario of non-adaptive radiation fueled by allopatric speciation rather than evolutionary radiation driven by ecological opportunity. Similar scenarios might underlie the high diversity of other speciose genera in the topographically complex Irano-Turanian landscape, though this remains to be tested with fine-grained distribution and climatic data.
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Affiliation(s)
- Farideh Moharrek
- Department of Plant Biology, Faculty of Biological Sciences, Tarbiat Modares University (TMU), Tehran, Iran
| | - Isabel Sanmartín
- Department of Biodiversity and Conservation, Real Jardín Botánico (CSIC), Madrid, Spain
| | - Shahrokh Kazempour-Osaloo
- Department of Plant Biology, Faculty of Biological Sciences, Tarbiat Modares University (TMU), Tehran, Iran
| | - Gonzalo Nieto Feliner
- Department of Biodiversity and Conservation, Real Jardín Botánico (CSIC), Madrid, Spain
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