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Zhou J, Wang S, Yu S, Li Y, Qiao M, Zhao Q, Hughes E, Liu H, Bu W. Limits of mitochondrial genes in delimiting species within a Carbula species complex (Hemiptera: Pentatomidae). ARCHIVES OF INSECT BIOCHEMISTRY AND PHYSIOLOGY 2024; 115:e22075. [PMID: 38288487 DOI: 10.1002/arch.22075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 11/27/2023] [Accepted: 12/08/2023] [Indexed: 02/01/2024]
Abstract
Molecular data has become a powerful tool for species delimitation, particularly among those that present limited morphological differences; while the mitochondrial genome, with its moderate length, low cost of sequencing and fast lineage sorting, has emerged as a practical data set. Due to the limited morphological differences among the closely related species of Carbula Stål 1865, the species boundaries between Carbula abbreviata (Motschulsky, 1866), Carbula humerigera (Uhler, 1860), and Carbula putoni (Jakovlev, 1876) have remained particularly unclear. In this study, we applied two phylogenetic reconstruction methods to two data sets (mitogenome and COI) to assess the phylogeny of Carbula distributed in Asia, and five species delimitation methods to determine the boundaries between East Asian Carbula species. Our phylogenetic analyses showed Carbula to be paraphyletic; the seven known species distributed within East Asia to form a single monophyletic group, and within this, C. abbreviata, C. humerigera, C. putoni and middle-type to comprise a C. humerigera species complex. Our results show that mitogenome data alone, while effective in the differentiation of more distantly related Carbula species, is not sufficient to accurately delimit the species within this newly described complex.
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Affiliation(s)
- Jiayue Zhou
- Institute of Entomology, College of Life Sciences, Nankai University, Tianjin, PR China
| | - Shujing Wang
- Institute of Entomology, College of Life Sciences, Nankai University, Tianjin, PR China
| | - Shengjie Yu
- Institute of Entomology, College of Life Sciences, Nankai University, Tianjin, PR China
| | - Yanfei Li
- Institute of Entomology, College of Life Sciences, Nankai University, Tianjin, PR China
| | - Mu Qiao
- Institute of Entomology, College of Life Sciences, Nankai University, Tianjin, PR China
| | - Qing Zhao
- College of Plant Protection, Shanxi Agricultural University, Taigu, PR China
| | | | - Huaxi Liu
- Department of Life Science, Natural History Museum, London, UK
| | - Wenjun Bu
- Institute of Entomology, College of Life Sciences, Nankai University, Tianjin, PR China
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Riquet F, De Kuyper CA, Fauvelot C, Airoldi L, Planes S, Fraschetti S, Mačić V, Milchakova N, Mangialajo L, Bottin L. Highly restricted dispersal in habitat-forming seaweed may impede natural recovery of disturbed populations. Sci Rep 2021; 11:16792. [PMID: 34408197 PMCID: PMC8373921 DOI: 10.1038/s41598-021-96027-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 07/14/2021] [Indexed: 02/07/2023] Open
Abstract
Cystoseira sensu lato (Class Phaeophyceae, Order Fucales, Family Sargassaceae) forests play a central role in marine Mediterranean ecosystems. Over the last decades, Cystoseira s.l. suffered from a severe loss as a result of multiple anthropogenic stressors. In particular, Gongolaria barbata has faced multiple human-induced threats, and, despite its ecological importance in structuring rocky communities and hosting a large number of species, the natural recovery of G. barbata depleted populations is uncertain. Here, we used nine microsatellite loci specifically developed for G. barbata to assess the genetic diversity of this species and its genetic connectivity among fifteen sites located in the Ionian, the Adriatic and the Black Seas. In line with strong and significant heterozygosity deficiencies across loci, likely explained by Wahlund effect, high genetic structure was observed among the three seas (ENA corrected FST = 0.355, IC = [0.283, 0.440]), with an estimated dispersal distance per generation smaller than 600 m, both in the Adriatic and Black Sea. This strong genetic structure likely results from restricted gene flow driven by geographic distances and limited dispersal abilities, along with genetic drift within isolated populations. The presence of genetically disconnected populations at small spatial scales (< 10 km) has important implications for the identification of relevant conservation and management measures for G. barbata: each population should be considered as separated evolutionary units with dedicated conservation efforts.
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Affiliation(s)
- Florentine Riquet
- Institut de Recherche pour le Développement (IRD), UMR ENTROPIE, Nouméa, New Caledonia.
- Sorbonne Université, CNRS, UMR LOV, Villefranche‑sur‑Mer, France.
| | | | - Cécile Fauvelot
- Institut de Recherche pour le Développement (IRD), UMR ENTROPIE, Nouméa, New Caledonia
- Sorbonne Université, CNRS, UMR LOV, Villefranche‑sur‑Mer, France
| | - Laura Airoldi
- Department of Biology, Chioggia Hydrobiological Station Umberto D'Ancona, University of Padova, Chioggia, Italy
- Department of Biological, Geological, and Environmental Sciences, University of Bologna, UO CoNISMa, Ravenna, Italy
| | - Serge Planes
- PSL Research University, EPHE-UPVD-CNRS, USR 3278 CRIOBE, Université de Perpignan, Perpignan, France
| | - Simonetta Fraschetti
- Department of Biology, University of Naples Federico II, Naples, Italy
- Stazione Zoologica Anton Dohrn, Naples, Italy
- CoNISMa, Rome, Italy
| | - Vesna Mačić
- Institut za biologiju mora, Univerzitet Crne Gore, Kotor, Montenegro
| | - Nataliya Milchakova
- Laboratory of Phytoresources, Kovalevsky Institute of Biology of the Southern Seas of RAS (IBSS), Sevastopol, Russia
| | | | - Lorraine Bottin
- Université Côte d'Azur, CNRS, UMR 7035 ECOSEAS, Nice, France
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