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Kwak H, Lee Y, Hwai ATS, Kim J, Nakano T, Park JK. Multiple origins of freshwater invasion and parental care reflecting ancient vicariances in the bivalve family Cyrenidae (Mollusca). Commun Biol 2024; 7:1212. [PMID: 39341940 PMCID: PMC11438898 DOI: 10.1038/s42003-024-06871-6] [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] [Received: 11/26/2023] [Accepted: 09/10/2024] [Indexed: 10/01/2024] Open
Abstract
Habitat transitions in living organisms are key innovations often coupled with species diversification after their successful adaptation to new environment. The Cyrenidae is among the most well-known heterodont bivalve groups that have successfully invaded freshwater systems from brackish water environments and display diverse lineage-specific developmental modes. Phylogenetic and molecular clock-based divergence time analyses using 12 complete mitochondrial genome sequences suggest that Cyrenidae species independently colonized freshwater habitats during three distinct spatial and geological periods: one from the American continents approximately in the Early Jurassic and the two others from Australasian/East Asian continents in the Early/Middle Cretaceous and the Paleogene-Neogene boundary, respectively. This study provides significant insight into the temporal and spatial patterns of multiple freshwater invasions, aligning with ancient vicariance events inferred from different geological timelines of plate tectonics. Additionally, mitogenome phylogeny confirms the earlier hypothesis of the repeated parallel evolution of parental care system within this bivalve group.
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Affiliation(s)
- Haena Kwak
- Division of EcoScience, Ewha Womans University, Seoul, Republic of Korea
| | - Yucheol Lee
- Marine Research Center, National Park Research Institute, Yeosu, Republic of Korea
| | - Aileen Tan Shau Hwai
- Centre for Marine and Coastal Studies, Universiti Sains Malaysia, Penang, Malaysia
| | - Jiyeon Kim
- Strategic Planning Department, Nakdonggang National Institute of Biological Resources, Sangju, Republic of Korea
| | - Tomoyuki Nakano
- Seto Marine Biological Laboratory, Kyoto University, Wakayama, Nishimuro, Japan
| | - Joong-Ki Park
- Division of EcoScience, Ewha Womans University, Seoul, Republic of Korea.
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2
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Hugall AF, Byrne M, O'Hara TD. Genetic variation in the brooding brittle-star: a global hybrid polyploid complex? ROYAL SOCIETY OPEN SCIENCE 2024; 11:240428. [PMID: 39113777 PMCID: PMC11304335 DOI: 10.1098/rsos.240428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 07/10/2024] [Accepted: 07/10/2024] [Indexed: 08/10/2024]
Abstract
The widespread and abundant brooding brittle-star (Amphipholis squamata) is a simultaneous hermaphrodite with a complex mitochondrial phylogeography of multiple divergent overlapping mtDNA lineages, high levels of inbreeding or clonality and unusual sperm morphology. We use exon-capture and transcriptome data to show that the nuclear genome comprises multiple (greater than 3) divergent (π > 6%) expressed components occurring across samples characterized by highly divergent (greater than 20%) mitochondrial lineages, and encompassing several other genera, including diploid dioecious species. We report a massive sperm genome size in A. squamata, an order of magnitude larger than that present in other brittle-stars, and consistent with our SNP-based measure of greatly elevated ploidy. Similarity of these genetic signatures to well-known animal systems suggests that A. squamata (and related taxa) is a hybrid polyploid asexual complex of variable subgenome origins, ploidy and reproductive mode. We discuss enigmatic aspects of A. squamata biology in this light. This putative allopolyploid complex would be the first to be reported from the phylum Echinodermata.
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Affiliation(s)
- Andrew F. Hugall
- Museums Victoria, GPO Box 666, Melbourne, Victoria3001, Australia
| | - Maria Byrne
- School of Life and Environmental Science, University of Sydney, Camperdown, New South Wales2050, Australia
| | - Timothy D. O'Hara
- School of Life and Environmental Science, University of Sydney, Camperdown, New South Wales2050, Australia
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3
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Hünicken LA, Paolucci EM, Lavinia PD, Sylvester F. Morphological and Genetic Assessment of Invasive Corbicula Lineages in Southern South America: A Case Study in Argentina. Animals (Basel) 2024; 14:1843. [PMID: 38997955 PMCID: PMC11240789 DOI: 10.3390/ani14131843] [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: 05/05/2024] [Revised: 06/02/2024] [Accepted: 06/14/2024] [Indexed: 07/14/2024] Open
Abstract
The broad global distribution of freshwater clams belonging to the genus Corbicula is driven by multiple hermaphroditic lineages. These lineages, characterized by shared morphological traits and phenotypic plasticity, pose challenges to morphological identification. Genetic markers, such as the mitochondrial COI gene, play a crucial role in delineating these lineages and their ranges. Morphotypes represent observed phenotypic variations, while lineages are defined based on genetic markers. Here, we comprehensively review Corbicula's distribution in Argentina, discriminate extant lineages based on both morphological and genetic (COI) data, and describe variations in internal and external morphologies using 15 Argentine populations. Genetic analyses identified two mitochondrial lineages: the AR morphotype (FW5 haplotype) and CS morphotype (FW17 haplotype). Strikingly, despite having similar vectors, origins, and invasive stages, Corbicula lineages exhibit virtually segregated distributions. However, mitochondrial haplotypes are found in sympatry mainly in northeastern Argentina where individuals with intermediate morphotypes exist, suggesting the presence of hybrids due to maternal genome retention. These findings contribute to the clarification of the identity and distribution of Corbicula lineages in Argentina, where the genus has been found for over half a century. Similar studies are needed in other areas to better understand the invasion patterns of this successful and adaptable group.
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Affiliation(s)
- Leandro A Hünicken
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires C1425FQB, Argentina
- Museo Argentino de Ciencias Naturales 'Bernardino Rivadavia', Av. Ángel Gallardo 470, Buenos Aires C1405DJR, Argentina
- Instituto Para el Estudio de la Biodiversidad de Invertebrados (IEBI), Facultad de Ciencias Naturales, Universidad Nacional de Salta, Av. Bolivia 5150, Salta A4408FVY, Argentina
| | - Esteban M Paolucci
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires C1425FQB, Argentina
- Museo Argentino de Ciencias Naturales 'Bernardino Rivadavia', Av. Ángel Gallardo 470, Buenos Aires C1405DJR, Argentina
| | - Pablo D Lavinia
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires C1425FQB, Argentina
- Laboratorio de Investigación y Conservación de la Biodiversidad (UNRN-InCoBIO), Universidad Nacional de Río Negro, Sede Atlántica, RPNº1 y Rotonda de la Cooperación, Viedma R8500JCG, Argentina
- CIT Río Negro (UNRN-CONICET), Universidad Nacional de Río Negro, Sede Atlántica, Viedma R8500JCG, Argentina
| | - Francisco Sylvester
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires C1425FQB, Argentina
- Instituto Para el Estudio de la Biodiversidad de Invertebrados (IEBI), Facultad de Ciencias Naturales, Universidad Nacional de Salta, Av. Bolivia 5150, Salta A4408FVY, Argentina
- Faculty of Biological Sciences, Goethe University Frankfurt, Max-von-Laue Str. 13, 60438 Frankfurt am Main, Germany
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4
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Janko K, Mikulíček P, Hobza R, Schlupp I. Sperm-dependent asexual species and their role in ecology and evolution. Ecol Evol 2023; 13:e10522. [PMID: 37780083 PMCID: PMC10534198 DOI: 10.1002/ece3.10522] [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: 01/11/2023] [Revised: 08/16/2023] [Accepted: 08/24/2023] [Indexed: 10/03/2023] Open
Abstract
Sexual reproduction is the primary mode of reproduction in eukaryotes, but some organisms have evolved deviations from classical sex and switched to asexuality. These asexual lineages have sometimes been viewed as evolutionary dead ends, but recent research has revealed their importance in many areas of general biology. Our review explores the understudied, yet important mechanisms by which sperm-dependent asexuals that produce non-recombined gametes but rely on their fertilization, can have a significant impact on the evolution of coexisting sexual species and ecosystems. These impacts are concentrated around three major fields. Firstly, sperm-dependent asexuals can potentially impact the gene pool of coexisting sexual species by either restricting their population sizes or by providing bridges for interspecific gene flow whose type and consequences substantially differ from gene flow mechanisms expected under sexual reproduction. Secondly, they may impact on sexuals' diversification rates either directly, by serving as stepping-stones in speciation, or indirectly, by promoting the formation of pre- and postzygotic reproduction barriers among nascent species. Thirdly, they can potentially impact on spatial distribution of species, via direct or indirect (apparent) types of competition and Allee effects. For each such mechanism, we provide empirical examples of how natural sperm-dependent asexuals impact the evolution of their sexual counterparts. In particular, we highlight that these broad effects may last beyond the tenure of the individual asexual lineages causing them, which challenges the traditional perception that asexual lineages are short-lived evolutionary dead ends and minor sideshows. Our review also proposes new research directions to incorporate the aforementioned impacts of sperm-dependent asexuals. These research directions will ultimately enhance our understanding of the evolution of genomes and biological interactions in general.
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Affiliation(s)
- Karel Janko
- Laboratory of Non‐Mendelian Evolution, Institute of Animal Physiology and GeneticsAcademy of Sciences of the Czech RepublicLiběchovCzech Republic
- Department of Biology and Ecology, Faculty of ScienceUniversity of OstravaOstravaCzech Republic
| | - Peter Mikulíček
- Department of Zoology, Faculty of Natural SciencesComenius University in BratislavaBratislavaSlovakia
| | - Roman Hobza
- Department of Plant Developmental Genetics, Institute of BiophysicsAcademy of Sciences of the Czech RepublicBrnoCzech Republic
| | - Ingo Schlupp
- Department of BiologyUniversity of OklahomaOklahomaNormanUSA
- Department of BiologyInternational Stock Center for Livebearing FishesOklahomaNormanUSA
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5
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Zeng C, Tang Y, Vastrade M, Coughlan NE, Zhang T, Cai Y, Van Doninck K, Li D. Salinity appears to be the main factor shaping spatial
COI
diversity of Corbicula lineages within the Chinese Yangtze River Basin. DIVERS DISTRIB 2022. [DOI: 10.1111/ddi.13666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Affiliation(s)
- Cong Zeng
- Hunan Engineering Technology Research Center of Featured Aquatic Resources Utilization, College of Animal Science and Technology Hunan Agricultural University Changsha China
- School of Oceanography Shanghai Jiao Tong University Shanghai China
| | - Yangxin Tang
- Hunan Engineering Technology Research Center of Featured Aquatic Resources Utilization, College of Animal Science and Technology Hunan Agricultural University Changsha China
| | - Martin Vastrade
- Laboratory of Evolutionary Genetics and Ecology; Research Unit in Environmental and Evolutionary Biology; Institute of Life, Earth and Environment (ILEE) University of Namur Namur Belgium
| | - Neil E. Coughlan
- School of Biological, Earth and Environmental Sciences University College Cork Cork Ireland
| | - Ting Zhang
- College of Chemistry and Chemical Engineering Central South University Changsha China
| | - Yongjiu Cai
- Nanjing Institute of Geography and Limnology Chinese Academy of Sciences Nanjing China
| | - Karine Van Doninck
- Laboratory of Evolutionary Genetics and Ecology; Research Unit in Environmental and Evolutionary Biology; Institute of Life, Earth and Environment (ILEE) University of Namur Namur Belgium
- Molecular Biology & Evolution Université Libre de Bruxelles Brussels Belgium
| | - Deliang Li
- Hunan Engineering Technology Research Center of Featured Aquatic Resources Utilization, College of Animal Science and Technology Hunan Agricultural University Changsha China
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6
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Bespalaya YV, Kropotin AV, Kondakov AV, Aksenova OV, Gofarov MY, Kim SK, Lee JH, Travina OV, Vikhrev IV, Vinarski MV, Bolotov IN. A taxonomic reassessment of native and invasive species of Corbicula clams (Bivalvia: Cyrenidae) from the Russian Far East and Korea. Zool J Linn Soc 2022. [DOI: 10.1093/zoolinnean/zlac078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Currently, the validity of many nominal bivalve species of the genus Corbicula endemic to the Russian Far East and South Korea needs a critical reassessment. In this study, we clarify the taxonomic status of Corbicula species of this area based on a combination of molecular genetic, conchological and anatomical data. According to our results, four Corbicula lineages, corresponding to the nominal species Corbicula japonica, Corbicula elatior, Corbicula leana and Corbicula fluminea, can be delineated in samples collected in the Primorye and Khabarovsk regions of Russia and South Korea. Two species endemic to the Russian Far East (i.e. Corbicula finitima and Corbicula lindholmi) are considered here as junior synonyms of the species C. japonica, which is widely distributed in estuarine habitats around the Japanese Archipelago, Sakhalin Island, southern Kurile Islands, Primorye and Khabarovsk regions, Korean Peninsula and China. Three nominal species described from the Lower Amur basin (Corbicula amurensis, Corbicula nevelskoyi and Corbicula sirotskii) appeared to be synonyms of C. elatior, whose range covers the Korean Peninsula, Primorye and Khabarovsk regions and, perhaps, China. We delineated several colour morphs of C. fluminea and C. japonica. The distinctness between these colour morphs can be attributed to both heritable and environmental factors.
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Affiliation(s)
- Yulia V Bespalaya
- N. Laverov Federal Center for Integrated Arctic Research, Russian Academy of Sciences , Severnaya Dvina Embankment 23, 163000 Arkhangelsk , Russia
| | - Alexander V Kropotin
- N. Laverov Federal Center for Integrated Arctic Research, Russian Academy of Sciences , Severnaya Dvina Embankment 23, 163000 Arkhangelsk , Russia
| | - Alexander V Kondakov
- N. Laverov Federal Center for Integrated Arctic Research, Russian Academy of Sciences , Severnaya Dvina Embankment 23, 163000 Arkhangelsk , Russia
| | - Olga V Aksenova
- N. Laverov Federal Center for Integrated Arctic Research, Russian Academy of Sciences , Severnaya Dvina Embankment 23, 163000 Arkhangelsk , Russia
| | - Mikhail Yu Gofarov
- N. Laverov Federal Center for Integrated Arctic Research, Russian Academy of Sciences , Severnaya Dvina Embankment 23, 163000 Arkhangelsk , Russia
| | - Sang Ki Kim
- Nakdonggang National Institute of Biological Resources , Gyeongsangbuk-do, Sangju, 37242 South Korea
| | - Jin Hee Lee
- Daegu Science High School , Daegu, 42110 South Korea
| | - Oksana V Travina
- N. Laverov Federal Center for Integrated Arctic Research, Russian Academy of Sciences , Severnaya Dvina Embankment 23, 163000 Arkhangelsk , Russia
| | - Ilya V Vikhrev
- N. Laverov Federal Center for Integrated Arctic Research, Russian Academy of Sciences , Severnaya Dvina Embankment 23, 163000 Arkhangelsk , Russia
| | - Maxim V Vinarski
- Laboratory of Macroecology & Biogeography of Invertebrates, Saint Petersburg State University , Universitetskaya Embankment 7–9, Saint Petersburg, 199034 , Russia
| | - Ivan N Bolotov
- N. Laverov Federal Center for Integrated Arctic Research, Russian Academy of Sciences , Severnaya Dvina Embankment 23, 163000 Arkhangelsk , Russia
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7
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Martínez-Fortún J, Phillips DW, Jones HD. Natural and artificial sources of genetic variation used in crop breeding: A baseline comparator for genome editing. Front Genome Ed 2022; 4:937853. [PMID: 36072906 PMCID: PMC9441798 DOI: 10.3389/fgeed.2022.937853] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 07/13/2022] [Indexed: 11/13/2022] Open
Abstract
Traditional breeding has successfully selected beneficial traits for food, feed, and fibre crops over the last several thousand years. The last century has seen significant technological advancements particularly in marker assisted selection and the generation of induced genetic variation, including over the last few decades, through mutation breeding, genetic modification, and genome editing. While regulatory frameworks for traditional varietal development and for genetic modification with transgenes are broadly established, those for genome editing are lacking or are still evolving in many regions. In particular, the lack of "foreign" recombinant DNA in genome edited plants and that the resulting SNPs or INDELs are indistinguishable from those seen in traditional breeding has challenged development of new legislation. Where products of genome editing and other novel breeding technologies possess no transgenes and could have been generated via traditional methods, we argue that it is logical and proportionate to apply equivalent legislative oversight that already exists for traditional breeding and novel foods. This review analyses the types and the scale of spontaneous and induced genetic variation that can be selected during traditional plant breeding activities. It provides a base line from which to judge whether genetic changes brought about by techniques of genome editing or other reverse genetic methods are indeed comparable to those routinely found using traditional methods of plant breeding.
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Affiliation(s)
| | | | - Huw D. Jones
- IBERS, Aberystwyth University, Aberystwyth, United Kingdom
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8
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Weber MM, Cibulka D. Overwinter survival of Corbicula fluminea in a central Minnesota lake. PLoS One 2022; 17:e0271402. [PMID: 35839229 PMCID: PMC9286253 DOI: 10.1371/journal.pone.0271402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 06/29/2022] [Indexed: 11/18/2022] Open
Abstract
Although Corbicula fluminea has been one of the more prolific freshwater invasive species in the world, previous studies have suggested a low probability for overwinter survival in northern latitudes without an artificially created thermal refuge. The discovery of live C. fluminea in a central Minnesota lake absent any known thermal refuge in 2020 presented an opportunity to further evaluate the overwinter survival and population structure of C. fluminea at the presumed edge of their potential range. The population was monitored from December 2020 through September 2021 alongside water temperature to better understand at which temperatures C. fluminea survived and if the population structure suggested reproduction occurring in the lake. We documented live C. fluminea in temperatures as low as 0.3°C. Shell size of recovered individuals suggested multiple cohorts, and the appearance of a new cohort at the end of the study, indicating active reproduction in the lake and suggesting the population had likely been present in the lake for at least two winters by the conclusion of the study period. Our findings provide evidence of the survival below historically documented lower lethal temperature limits and suggests adaptations to modeling predicting suitable habitat, both present and in a changing climate, are necessary to better assess risk of invasion by this species.
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Affiliation(s)
- Megan M. Weber
- University of Minnesota Extension, Andover, Minnesota, United States of America
- Minnesota Aquatic Invasive Species Research Center, University of Minnesota, St. Paul, Minnesota, United States of America
- * E-mail:
| | - Daniel Cibulka
- Sherburne Soil and Water Conservation District, Elk River, Minnesota, United States of America
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9
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Voroshilova IS, Pryanichnikova EG, Prokin AA, Sabitova RZ, Karabanov DP, Pavlov DD, Kurina EM. Morphological and Genetic Traits of the First Invasive Population of the Asiatic Clam Corbicula fluminea (O.F. Müller, 1774) Naturalized in the Volga River Basin. RUSSIAN JOURNAL OF BIOLOGICAL INVASIONS 2021. [DOI: 10.1134/s2075111721010148] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Bespalaya YV, Aksenova OV, Gofarov MY, Kondakov AV, Kropotin AV, Kononov OD, Bolotov IN. Who inhabits the world’s deepest crater lake? A taxonomic review of
Corbicula
(Bivalvia: Cyrenidae) clams from Lake Toba, North Sumatra, Indonesia. J ZOOL SYST EVOL RES 2020. [DOI: 10.1111/jzs.12428] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yulia V. Bespalaya
- N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of Russian Academy of Sciences Arkhangelsk Russia
| | - Olga V. Aksenova
- N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of Russian Academy of Sciences Arkhangelsk Russia
| | - Mikhail Yu. Gofarov
- N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of Russian Academy of Sciences Arkhangelsk Russia
| | - Alexander V. Kondakov
- N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of Russian Academy of Sciences Arkhangelsk Russia
| | - Alexander V. Kropotin
- N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of Russian Academy of Sciences Arkhangelsk Russia
| | - Oleg D. Kononov
- N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of Russian Academy of Sciences Arkhangelsk Russia
| | - Ivan N. Bolotov
- N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of Russian Academy of Sciences Arkhangelsk Russia
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11
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Noh P, Oh S, Park S, Kwon T, Kim Y, Choe JC, Jeong G. Association between host wing morphology polymorphism and Wolbachia infection in Vollenhovia emeryi (Hymenoptera: Myrmicinae). Ecol Evol 2020; 10:8827-8837. [PMID: 32884660 PMCID: PMC7452775 DOI: 10.1002/ece3.6582] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 05/14/2020] [Accepted: 05/20/2020] [Indexed: 12/12/2022] Open
Abstract
Many eusocial insects, including ants, show complex colony structures, distributions, and reproductive strategies. In the ant Vollenhovia emeryi Wheeler (Hymenoptera: Myrmicinae), queens and males are produced clonally, while sterile workers arise sexually, unlike other ant species and Hymenopteran insects in general. Furthermore, there is a wing length polymorphism in the queen caste. Despite its evolutionary remarkable traits, little is known about the population structure of this ant species, which may provide insight into its unique reproductive mode and polymorphic traits. We performed in-depth analyses of ant populations from Korea, Japan, and North America using three mitochondrial genes (COI, COII, and Cytb). The long-winged (L) morph is predominant in Korean populations, and the short-winged (S) morph is very rare. Interestingly, all L morphs were infected with Wolbachia, while all Korean S morphs lacked Wolbachia, demonstrating a association between a symbiont and a phenotypic trait. A phylogenetic analysis revealed that the S morph is derived from the L morph. We propose that the S morph is associated with potential resistance to Wolbachia infection and that Wolbachia infection does not influence clonal reproduction (as is the case in other ant species).
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Affiliation(s)
- Pureum Noh
- Division of EcoScienceEwha Womans UniversitySeoulKorea
- National Institute of EcologySeochun‐gunKorea
- Present address:
Herbal Medicine Resources Research CenterKorea Institute of Oriental MedicineNajuKorea
| | - Seung‐Yoon Oh
- School of Biological SciencesSeoul National UniversitySeoulKorea
| | - Soyeon Park
- National Institute of EcologySeochun‐gunKorea
- Interdisciplinary Program of EcoCreativeThe Graduate SchoolEwha Womans UniversitySeoulKorea
| | - Taesung Kwon
- Division of Forest EcologyKorea Forest Research InstituteSeoulKorea
| | - Yonghwan Kim
- Department of PhysicsKonkuk UniversitySeoulKorea
| | - Jae Chun Choe
- Division of EcoScienceEwha Womans UniversitySeoulKorea
- National Institute of EcologySeochun‐gunKorea
| | - Gilsang Jeong
- Division of EcoScienceEwha Womans UniversitySeoulKorea
- National Institute of EcologySeochun‐gunKorea
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12
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Phenotype and Genotype Characterisation of the Asian Clam of the Genus Corbicula Megerle von Mϋhlfeld, 1811 (Venerida, Cyrenidae) from the East Coast of Peninsular Malaysia. BORNEO JOURNAL OF RESOURCE SCIENCE AND TECHNOLOGY 2020. [DOI: 10.33736/bjrst.2211.2020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The Corbicula taxonomy in Malaysia is equivocal and scarcely being reported. This study aims to characterise phenotype and genotype of the Asian clam of the genus Corbicula (Mergele Von Mühlfeld, 1811) from three locations in east coast of Peninsular Malaysia. The phenotypic characterisation of the three population of the clam was evaluated on the basis of morphometric characters, while mtDNA cytochrome b (cytb) was used to characterise the genotypes. Results of morphometric analysis showed a significant difference (p<0.05) in shell height (SH), shell width (SW) and umbo length (UL) among three locations between the evaluated population. Discriminant analysis also revealed significant difference of the characters among the study sites. However, cluster analysis revealed an overlapping of morphometric characters among evaluated C. fluminea intricate complete separation between populations. Besides, a comparison of the Corbicula with the morphotypes and holotypes had proposed the Corbicula in this region known as C. fluminea. The genotypes characterisation using mtDNA cytb verifies the existence of C. fluminea. Phylogenetic trees demonstrated polymorphism and low genetic variances although geographically separated which parallel to the phenotypic characterisation. Thus, these findings enhance the knowledge on geographical variation and elucidate the complexity of taxa.
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13
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Haponski AE, Ó Foighil D. Phylogenomic analyses confirm a novel invasive North American Corbicula (Bivalvia: Cyrenidae) lineage. PeerJ 2019; 7:e7484. [PMID: 31497390 PMCID: PMC6708575 DOI: 10.7717/peerj.7484] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Accepted: 07/15/2019] [Indexed: 11/20/2022] Open
Abstract
The genus Corbicula consists of estuarine or freshwater clams native to temperate/tropical regions of Asia, Africa, and Australia that collectively encompass both sexual species and clonal (androgenetic) lineages. The latter have become globally invasive in freshwater systems and they represent some of the most successful aquatic invasive lineages. Previous studies have documented four invasive clonal lineages, Forms A, B, C, and Rlc, with varying known distributions. Form A (R in Europe) occurs globally, Form B is found solely in North America, mainly the western United States, Form C (S in Europe) occurs both in European watersheds and in South America, and Rlc is known from Europe. A putative fifth invasive morph, Form D, was recently described in the New World from the Illinois River (Great Lakes watershed), where it occurs in sympatry with Forms A and B. An initial study showed Form D to be conchologically distinct: possessing rust-colored rays and white nacre with purple teeth. However, its genetic distinctiveness using standard molecular markers (mitochondrial cytochrome c oxidase subunit I and nuclear ribosomal 28S RNA) was ambiguous. To resolve this issue, we performed a phylogenomic analysis using 1,699-30,027 nuclear genomic loci collected via the next generation double digested restriction-site associated DNA sequencing method. Our results confirmed Form D to be a distinct invasive New World lineage with a population genomic profile consistent with clonality. A majority (7/9) of the phylogenomic analyses recovered the four New World invasive Corbicula lineages (Forms A, B, C, and D) as members of a clonal clade, sister to the non-clonal Lake Biwa (Japan) endemic, Corbicula sandai. The age of the clonal clade was estimated at 1.49 million years (my; ± 0.401-2.955 my) whereas the estimated ages of the four invasive lineage crown clades ranged from 0.27 to 0.44 my. We recovered very little evidence of nuclear genomic admixture among the four invasive lineages in our study populations. In contrast, 2/6 C. sandai individuals displayed partial nuclear genomic Structure assignments with multiple invasive clonal lineages. These results provide new insights into the origin and maintenance of clonality in this complex system.
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Affiliation(s)
- Amanda E. Haponski
- Department of Ecology and Evolutionary Biology and Museum of Zoology, University of Michigan, Ann Arbor, MI, USA
| | - Diarmaid Ó Foighil
- Department of Ecology and Evolutionary Biology and Museum of Zoology, University of Michigan, Ann Arbor, MI, USA
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14
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Abstract
The basket clam genus, Corbicula, commonly known as the Asian clam, has become one of the most internationally high-profile and widespread aquatic invasive species. This genus is now considered to comprise a polymorphic species complex. The international invasion of Corbicula is characterised by four lineages, each fixed for one morphotype, genotype and haplotype combination: the American form (A) and European round form (R), the American form (C) and European saddle from (S), American form B, form round light colour (Rlc) and an intermediate between forms R and S known as Int. We investigated the genetic and morphometric makeup of each Irish population in order to establish which invasive lineages were present so as to identify the number of introductions to Ireland. A combination of morphometric, mitochondrial cytochrome oxidase subunit I (mtCOI) gene analysis and microsatellite markers were used to determine the invasive form at each Irish site. All Irish Corbicula samples conformed morphometrically to the invasive form A/R. All mtCOI sequences retrieved for 25 Irish individuals were identical to the international A/R form, while microsatellite markers again showed a common clustering with the international A/R forms of Corbicula. The combined approach of morphometries, total genomic DNA and microsatellite markers indicate only one form of Corbicula invaded Ireland; the international A/R form.
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15
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Bespalaya YV, Bolotov IN, Aksenova OV, Kondakov AV, Gofarov MY, Laenko TM, Sokolova SE, Shevchenko AR, Travina OV. Aliens are moving to the Arctic frontiers: an integrative approach reveals selective expansion of androgenic hybrid Corbicula lineages towards the North of Russia. Biol Invasions 2018. [DOI: 10.1007/s10530-018-1698-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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16
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Schwander T, Oldroyd BP. Androgenesis: where males hijack eggs to clone themselves. Philos Trans R Soc Lond B Biol Sci 2017; 371:rstb.2015.0534. [PMID: 27619698 DOI: 10.1098/rstb.2015.0534] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/02/2016] [Indexed: 11/12/2022] Open
Abstract
Androgenesis is a form of quasi-sexual reproduction in which a male is the sole source of the nuclear genetic material in the embryo. Two types of androgenesis occur in nature. Under the first type, females produce eggs without a nucleus and the embryo develops from the male gamete following fertilization. Evolution of this type of androgenesis is poorly understood as the parent responsible for androgenesis (the mother) gains no benefit from it. Ultimate factors driving the evolution of the second type of androgenesis are better understood. In this case, a zygote is formed between a male and a female gamete, but the female genome is eliminated. When rare, androgenesis with genome elimination is favoured because an androgenesis-determining allele has twice the reproductive success of an allele that determines sexual reproduction. Paradoxically, except in hermaphrodites, a successful androgenetic strain can drive such a male-biased sex ratio that the population goes extinct. This likely explains why androgenesis with genome elimination appears to be rarer than androgenesis via non-nucleate eggs, although both forms are either very rare or remain largely undetected in nature. Nonetheless, some highly invasive species including ants and freshwater clams are androgenetic, for reasons that are largely unexplained.This article is part of the themed issue 'Weird sex: the underappreciated diversity of sexual reproduction'.
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Affiliation(s)
- Tanja Schwander
- Department of Ecology and Evolution, University of Lausanne, 1015 Lausanne, Switzerland
| | - Benjamin P Oldroyd
- Behaviour and Genetics of Social Insects Lab, School of Life and Environmental Sciences, University of Sydney, Macleay Building A12, Sydney, New South Wales 2006, Australia
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Cao L, Damborenea C, Penchaszadeh PE, Darrigran G. Gonadal cycle of Corbicula fluminea (Bivalvia: Corbiculidae) in Pampean streams (Southern Neotropical Region). PLoS One 2017; 12:e0186850. [PMID: 29065185 PMCID: PMC5655357 DOI: 10.1371/journal.pone.0186850] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2017] [Accepted: 10/09/2017] [Indexed: 12/03/2022] Open
Abstract
Corbicula fluminea is an aggressive invasive species of bivalve that arrived into the Río de la Plata River between the late 60’s and early 70’s, and dispersed widely throughout the Neotropical region, evidencing a great adaptive flexibility to different environmental conditions. This species is a functional hermaphrodite with larval incubation inside the inner demibranch. Despite its widespread distribution, there are no previous studies of complete gonadal histology and reproductive cycle for this species in the Neotropical region. In this study, the reproductive dynamics of C. fluminea in a temperate region, the Santa Catalina Pampean stream, Argentina, is described. Samples of 20–30 individuals were collected monthly from April 2003-April 2005 and processed using traditional histological techniques. During the two years of this study, seven spawning events were recognized. Three major spawns occurred in spring and summer, and other four minor ones during summer and autumn. Events of oocyte recovery were observed after spawning. A high number of incubating individuals was detected. The results stressed the difficulty of identifying a particular pattern of gamete release and of spawning behaviour in this invasive species, especially when inhabiting an unstable environment.
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Affiliation(s)
- Luciana Cao
- División Zoología Invertebrados, Museo de La Plata FCNyM-UNLP & CONICET, La Plata, Argentina
| | - Cristina Damborenea
- División Zoología Invertebrados, Museo de La Plata FCNyM-UNLP & CONICET, La Plata, Argentina
| | - Pablo E. Penchaszadeh
- Laboratorio de Ecosistemas Costeros-Malacología, Museo Argentino de Ciencias Naturales “Bernardino Rivadavia” (CONICET), Buenos Aires, Argentina
| | - Gustavo Darrigran
- División Zoología Invertebrados, Museo de La Plata FCNyM-UNLP & CONICET, La Plata, Argentina
- * E-mail:
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Morgado-Santos M, Carona S, Vicente L, Collares-Pereira MJ. First empirical evidence of naturally occurring androgenesis in vertebrates. ROYAL SOCIETY OPEN SCIENCE 2017; 4:170200. [PMID: 28573029 PMCID: PMC5451830 DOI: 10.1098/rsos.170200] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Accepted: 04/27/2017] [Indexed: 06/07/2023]
Abstract
Androgenesis among vertebrates is considered a rare phenomenon, with some cases reported so far, but linked to experiments involving gamete manipulation (artificial androgenesis). Herein, we report the first empirical evidence of the natural occurrence of spontaneous androgenesis in a vertebrate, the Squalius alburnoides allopolyploid complex. A genetically screened random sample of a natural population was allowed to reproduce in an isolated pond without any human interference, and the viable offspring obtained was later analysed for paternity. Both nuclear and mitochondrial markers showed that the only allodiploid fish found among all the allotriploid offspring was androgenetically produced by an allodiploid male. This specimen had no female nuclear genomic input, and the sequence of the mitochondrial fragment examined differed from that of the male progenitor, matching one of the parental females available in the pond, probably the mother. The possible role of androgenesis in the reproductive dynamics of this highly successful vertebrate complex is discussed.
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Affiliation(s)
- Miguel Morgado-Santos
- Centro de Ecologia, Evolução e Alterações Ambientais (cE3c), Universidade de Lisboa, 1749-016 Lisboa, Portugal
| | - Sara Carona
- Centro de Ecologia, Evolução e Alterações Ambientais (cE3c), Universidade de Lisboa, 1749-016 Lisboa, Portugal
| | - Luís Vicente
- Centro de Filosofia das Ciências da Universidade de Lisboa (CFCUL), Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal
| | - Maria João Collares-Pereira
- Centro de Ecologia, Evolução e Alterações Ambientais (cE3c), Universidade de Lisboa, 1749-016 Lisboa, Portugal
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Low Genetic Diversity and High Invasion Success of Corbicula fluminea (Bivalvia, Corbiculidae) (Müller, 1774) in Portugal. PLoS One 2016; 11:e0158108. [PMID: 27391333 PMCID: PMC4938217 DOI: 10.1371/journal.pone.0158108] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2015] [Accepted: 06/12/2016] [Indexed: 12/05/2022] Open
Abstract
The Asian clam, Corbicula fluminea, is an invasive alien species (IAS) originally from Asia that has spread worldwide causing major ecological and economic impacts in aquatic ecosystems. Here, we evaluated C. fluminea genetic (using COI mtDNA, CYTb mtDNA and 18S rDNA gene markers), morphometric and sperm morphology variation in Portuguese freshwater ecosystems. The COI marker revealed a single haplotype, which belongs to the Asian FW5 invasive lineage, suggesting a common origin for all the 13 Portuguese C. fluminea populations analysed. Morphometric analyses showed differences between the populations colonizing the North (with the exception of the Lima River) and the Centre/South ecosystems. The sperm morphology examination revealed the presence of biflagellate sperm, a distinctive character of the invasive androgenetic lineages. The low genetic variability of the Portuguese C. fluminea populations and the pattern of sperm morphology have been illuminating for understanding the demographic history of this invasive species. We hypothesize that these populations were derived from a unique introductory event of a Corbicula fluminea FW5 invasive androgenic lineage in the Tejo River, which subsequently dispersed to other Portuguese freshwater ecosystems. The C. fluminea asexual reproductive mode may have assisted these populations to become highly invasive despite the low genetic diversity.
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Zhou R, Xiao J, Qin Q, Zhu B, Zhao R, Zhang C, Tao M, Luo K, Wang J, Peng L, Liu S. YY super sperm lead to all male triploids and tetraploids. BMC Genet 2015; 16:68. [PMID: 26108606 PMCID: PMC4479108 DOI: 10.1186/s12863-015-0230-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Accepted: 06/10/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Androgenesis is a unique and rarely encountered reproductive mode in which the offspring only inherit the paternal nuclear genome, resulting in relatively few viable individuals. RESULTS In this study, a super male (YY) crucian carp was obtained by androgenesis with the diploid sperm of autotetraploid crucian carp (4n = 200). Flow cytometry assay confirmed the fish was diploid. The scanning electron microscopy and flow cytometry analysis results of sperm revealed that the YY crucian carp produced unreduced diploid sperm. To prove the special reproductive characteristic and homozygosity of the YY crucian carp, three rounds of hybridization experiments were performed. First, self-crossing between female androgenic progenies and YY crucian carp generated all male tetraploids. Then, hybridization of female red crucian carp (2n = 100) and female autotetraploid fish (4n = 200) with YY crucian carp produced all male triploids and all male tetraploids, respectively. CONCLUSIONS This is the first time reported producing a viable diploid homozygous YY fish with unreduced diploid sperm of the autotetraploid fish, which were derived from distant hybridization. These results will not only help explaining the sex determination mechanism in teleost fish, but also play a significant role in genetic breeding in aquaculture.
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Affiliation(s)
- Rong Zhou
- Key Laboratory of Protein Chemistry and Developmental Biology of the State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha, Hunan, People's Republic of China, , 410081.
| | - Jun Xiao
- Key Laboratory of Protein Chemistry and Developmental Biology of the State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha, Hunan, People's Republic of China, , 410081.
| | - Qinbo Qin
- Key Laboratory of Protein Chemistry and Developmental Biology of the State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha, Hunan, People's Republic of China, , 410081.
| | - Bin Zhu
- Key Laboratory of Protein Chemistry and Developmental Biology of the State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha, Hunan, People's Republic of China, , 410081.
| | - Rurong Zhao
- Key Laboratory of Protein Chemistry and Developmental Biology of the State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha, Hunan, People's Republic of China, , 410081.
| | - Chun Zhang
- Key Laboratory of Protein Chemistry and Developmental Biology of the State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha, Hunan, People's Republic of China, , 410081.
| | - Min Tao
- Key Laboratory of Protein Chemistry and Developmental Biology of the State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha, Hunan, People's Republic of China, , 410081.
| | - Kaikun Luo
- Key Laboratory of Protein Chemistry and Developmental Biology of the State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha, Hunan, People's Republic of China, , 410081.
| | - Jing Wang
- Key Laboratory of Protein Chemistry and Developmental Biology of the State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha, Hunan, People's Republic of China, , 410081.
| | - Liangyue Peng
- Key Laboratory of Protein Chemistry and Developmental Biology of the State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha, Hunan, People's Republic of China, , 410081.
| | - Shaojun Liu
- Key Laboratory of Protein Chemistry and Developmental Biology of the State Education Ministry of China, College of Life Sciences, Hunan Normal University, Changsha, Hunan, People's Republic of China, , 410081.
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Ross L, Normark BB. Evolutionary problems in centrosome and centriole biology. J Evol Biol 2015; 28:995-1004. [PMID: 25781035 PMCID: PMC4979663 DOI: 10.1111/jeb.12620] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Revised: 03/10/2015] [Accepted: 03/11/2015] [Indexed: 01/01/2023]
Abstract
Centrosomes have been an enigma to evolutionary biologists. Either they have been the subject of ill-founded speculation or they have been ignored. Here, we highlight evolutionary paradoxes and problems of centrosome and centriole evolution and seek to understand them in the light of recent advances in centrosome biology. Most evolutionary accounts of centrosome evolution have been based on the hypothesis that centrosomes are replicators, independent of the nucleus and cytoplasm. It is now clear, however, that this hypothesis is not tenable. Instead, centrosomes are formed de novo each cell division, with the presence of an old centrosome regulating, but not essential for, the assembly of a new one. Centrosomes are the microtubule-organizing centres of cells. They can potentially affect sensory and motor characters (as the basal body of cilia), as well as the movements of chromosomes during cell division. This latter role does not seem essential, however, except in male meiosis, and the reasons for this remain unclear. Although the centrosome is absent in some taxa, when it is present, its structure is extraordinarily conserved: in most taxa across eukaryotes, it does not appear to evolve at all. And yet a few insect groups display spectacular hypertrophy of the centrioles. We discuss how this might relate to the unusual reproductive system found in these insects. Finally, we discuss why the fate of centrosomes in sperm and early embryos might differ between different groups of animals.
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Affiliation(s)
- L Ross
- Institute of Evolutionary Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, UK
| | - B B Normark
- Department of Biology and Graduate Program in Organismic and Evolutionary Biology, University of Massachusetts, Amherst, MA, USA
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22
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Pigneur LM, Etoundi E, Aldridge DC, Marescaux J, Yasuda N, Van Doninck K. Genetic uniformity and long-distance clonal dispersal in the invasive androgenetic Corbicula clams. Mol Ecol 2014; 23:5102-16. [PMID: 25208249 DOI: 10.1111/mec.12912] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2014] [Revised: 08/26/2014] [Accepted: 08/27/2014] [Indexed: 11/28/2022]
Abstract
The clam genus Corbicula is an interesting model system to study the evolution of reproductive modes as it includes both sexual and asexual (androgenetic) lineages. While the sexual populations are restricted to the native Asian areas, the androgenetic lineages are widely distributed being also found in America and Europe where they form a major aquatic invasive pest. We investigated the genetic diversity of native and invasive Corbicula populations through a worldwide sampling. The use of mitochondrial and nuclear (microsatellite) markers revealed an extremely low diversity in the invasive populations with only four, undiversified, genetic lineages distributed across Europe and America. On the contrary, in the native populations, both sexual and androgenetic lineages exhibited much higher genetic diversity. Remarkably, the most abundant and widely distributed invasive forms, the so-called form A and form R found in America and Europe respectively, are fixed for the same single COI (cytochrome c oxydase subunit I) haplotype and same multilocus genotype. This suggests that form R, observed in Europe since the 1980s, derived directly from form A found in America since the 1920s. In addition, this form shares alleles with some Japanese populations, indicating a Japanese origin for this invasive lineage. Finally, our study suggests that few androgenetic Corbicula individuals successfully invaded the non-native range and then dispersed clonally. This is one striking case of genetic paradox raising the issue of invasive and evolutionary success of genetically undiversified populations.
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Affiliation(s)
- Lise-Marie Pigneur
- Laboratory of Evolutionary Genetics and Ecology, Research Unit in Environmental and Evolutionary Biology, University of Namur, 5000, Namur, Belgium
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Rey O, Facon B, Foucaud J, Loiseau A, Estoup A. Androgenesis is a maternal trait in the invasive ant Wasmannia auropunctata. Proc Biol Sci 2013; 280:20131181. [PMID: 23864597 DOI: 10.1098/rspb.2013.1181] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Androgenesis is the production of an offspring containing exclusively the nuclear genome of the fathering male via the maternal eggs. This unusual mating system is generally considered a male trait, giving to androgenetic males a substantial fitness advantage over their sexually reproducing relatives. We here provide the first empirical study of the evolutionary outcomes of androgenesis in a haplo-diploid organism: the invasive ant Wasmannia auropunctata. Some of the populations of this species have a classical haplo-diploid sexual mating system. In other populations, females and males are produced through parthenogenesis and androgenesis, respectively, whereas workers are produced sexually. We conducted laboratory reciprocal-cross experiments with reproductive individuals from both types of populations and analysed their progenies with genetic markers, to determine the respective contribution of males and females to the production of androgenetic males. We found that androgenesis was a parthenogenetic female trait. A population genetic study conducted in natura confirmed the parthenogenetic female origin of androgenesis, with the identification of introgression events of sexual male genotypes into androgenetic/parthenogenetic lineages. We argue that by producing males via androgenesis, parthenogenetic queen lineages may increase and/or maintain their adaptive potential, while maintaining the integrity of their own genome, by occasionally acquiring new male genetic material and avoiding inbreeding depression within the sexually produced worker cast.
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Evolutionary and ecological implications of sexual parasitism. Trends Ecol Evol 2013; 28:297-306. [DOI: 10.1016/j.tree.2012.12.006] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2012] [Revised: 12/14/2012] [Accepted: 12/30/2012] [Indexed: 11/21/2022]
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