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Machkour-M’Rabet S, Santamaría-Rivero W, Dzib-Chay A, Torres Cristiani L, MacKinnon-Haskins B. Multi-character approach reveals a new mangrove population of the Yellow Warbler complex, Setophaga petechia, on Cozumel Island, Mexico. PLoS One 2023; 18:e0287425. [PMID: 37347741 PMCID: PMC10287016 DOI: 10.1371/journal.pone.0287425] [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: 10/05/2022] [Accepted: 06/06/2023] [Indexed: 06/24/2023] Open
Abstract
The Setophaga petechia complex includes 43 subspecies distributed within the new world, of which some are migratory and others are resident, with only two resident subspecies in the Mexican Caribbean: Setophaga petechia bryanti a mangrove subspecies belonging to the erithachorides group resident on the mainland of the Yucatan Peninsula and Setophaga petechia rufivertex endemic to Cozumel Island and belonging to the petechia group. Recently, a new population of individuals presenting intermediate phenotypic traits and living in mangrove ecosystems was discovered and reported for Cozumel Island. In this study, we used a multi-character approach including genetic (five ISSR genetic markers), morphometric (eight traits), phenotypic (four characteristics of males), and acoustic dataset (11 parameters) to understand the process of differentiation and the status of these new island individuals in relation to the two well-established subspecies using a total of 60 individuals (20 for each group). Through multivariate analyses based on different dataset used in our study, we show how the new population is related to the endemic island subspecies, S. p. rufivertex and to the mainland subspecies, S. p. bryanti while demonstrating finite differences. We conclude that the new population of S. petechia on Cozumel Island is a well-established population with high level of differentiation.
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Affiliation(s)
- Salima Machkour-M’Rabet
- Laboratorio de Ecología Molecular y Conservación, Departamento de Conservación de la Biodiversidad, El Colegio de la Frontera Sur (ECOSUR), Chetumal, Quintana Roo, México
| | | | | | - Leopoldo Torres Cristiani
- Laboratorio de Ecología Molecular y Conservación, Departamento de Conservación de la Biodiversidad, El Colegio de la Frontera Sur (ECOSUR), Chetumal, Quintana Roo, México
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de Souza TE, Cruz GADS, de Moura RDC. Impact of Limited Dispersion Capacity and Natural Barriers on the Population Structure of the Grasshopper Ommexecha virens (Orthoptera: Ommexechidae). NEOTROPICAL ENTOMOLOGY 2021; 50:706-715. [PMID: 33978918 DOI: 10.1007/s13744-021-00878-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 04/21/2021] [Indexed: 06/12/2023]
Abstract
The grasshopper Ommexecha virens Serville has low dispersion capacity, and it is regarded as a specialist, only being found in sandy, dry environments with high incidence of sunlight. Considering these aspects, we evaluated the diversity and genetic structure of O. virens natural populations using ISSR (Inter Simple Sequence Repeat) markers. The data pointed to low expected heterozygosity for some populations (HE = 0.06-0.09), probably a consequence of positive inbreeding, which is typical of species showing low or null dispersion indices. Moreover, significant genetic differentiation was observed (FST = 0.50 and GST = 0.51), as well as low number of migrants (Nm = 0.47), indicating that the populations are genetically differentiated. This is likely related to the limitation in dispersing and fragmentation of suitable environment localities colonized by O. virens. The populations of O. virens were structured in three genetic groups associated to different landscapes, revealing the presence of a secondary contact zone, possibly arisen from isolation followed by genetic divergence among populations and subsequent gene flow of divergent individuals of O. virens. At last, we found positive isolation by distance (IBD; r: 0.427; P: 0.025) which is an important factor, since it may be adding to the emergence of reproductive barriers among individuals of O. virens that have been experiencing isolation.
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Affiliation(s)
- Tyago Eufrásio de Souza
- Laboratório de Biodiversidade e Genética de Insetos, Universidade de Pernambuco (UPE), Recife, Pernambuco, Brazil
| | - Geyner Alves Dos Santos Cruz
- Laboratório de Biodiversidade e Genética de Insetos, Universidade de Pernambuco (UPE), Recife, Pernambuco, Brazil.
- Laboratório de Biodiversidade e Genética Evolutiva, Universidade de Pernambuco (UPE), Petrolina, Pernambuco, Brazil.
| | - Rita de Cássia de Moura
- Laboratório de Biodiversidade e Genética de Insetos, Universidade de Pernambuco (UPE), Recife, Pernambuco, Brazil.
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Melo AS, Cruz GAS, Félix AP, Rocha MF, Loreto V, Moura RC. Wide dispersion of B chromosomes in Rhammatocerus brasiliensis (Orthoptera, Acrididae). Genet Mol Biol 2020; 43:e20190077. [PMID: 32542305 PMCID: PMC7295183 DOI: 10.1590/1678-4685-gmb-2019-0077] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Accepted: 07/16/2019] [Indexed: 01/01/2023] Open
Abstract
The grasshopper Rhammatocerus brasiliensis shows polymorphism of B chromosomes, but the magnitude of B-chromosome occurrence and the factors that may contribute to their dispersion in the species remain unknown thus far. The present study analyzed the occurrence and dispersion of B chromosomes in R. brasiliensis individuals from 21 populations widely distributed in the Brazilian Northeast. The genetic connectivity between 10 populations was verified through analysis of ISSR markers from 200 individuals. Of the 21 populations, 19 presented individuals with one B chromosome, three with two, and one with three B chromosomes. The B chromosome is of medium size and constitutive heterochromatin (CH) located in the pericentromeric region. A variant B chromosome was observed in three populations, similar in size to that of chromosome X, gap and CH, and located in the terminal region. B chromosome frequencies in different populations varied from 0% to 18,8%, mean 8,5%. The wide distribution of the B chromosome is likely a consequence of the positive gene flow among the analyzed populations. B-chromosome occurrence in populations of R. brasiliensis possibly follows the population genetic structure of the species and, owing to the existence of a variant, its origin may not be recent.
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Affiliation(s)
- Adriana S Melo
- Universidade de Pernambuco (UPE), Instituto de Ciências Biológicas, Laboratório de Biodiversidade e Genética de Insetos, Recife, PE, Brazil
| | - Geyner A S Cruz
- Universidade de Pernambuco (UPE), Instituto de Ciências Biológicas, Laboratório de Biodiversidade e Genética de Insetos, Recife, PE, Brazil
- Universidade de Pernambuco (UPE), Laboratório de Biodiversidade e Genética Evolutiva, Campus Petrolina, Petrolina, PE, Brazil
| | - Aline P Félix
- Universidade de Pernambuco (UPE), Instituto de Ciências Biológicas, Laboratório de Biodiversidade e Genética de Insetos, Recife, PE, Brazil
| | - Marília F Rocha
- Universidade de Pernambuco (UPE), Instituto de Ciências Biológicas, Laboratório de Biodiversidade e Genética de Insetos, Recife, PE, Brazil
| | - Vilma Loreto
- Universidade Federal de Pernambuco (UFPE), Departamento de Genética, Laboratório de Genética Animal e Humana e Citogenética, Recife, PE, Brazil
| | - Rita C Moura
- Universidade de Pernambuco (UPE), Instituto de Ciências Biológicas, Laboratório de Biodiversidade e Genética de Insetos, Recife, PE, Brazil
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Genetic Structure and Connectivity of the Red Mangrove at Different Geographic Scales through a Complex Transverse Hydrological System from Freshwater to Marine Ecosystems. DIVERSITY-BASEL 2020. [DOI: 10.3390/d12020048] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Mangrove forests are ecologically and economically valuable resources composed of trees morphologically and physiologically adapted to thrive across a range of habitats. Although, mangrove trees have high dispersion capacity, complexity of hydrological systems may lead to a fine-scale genetic structure (FSGS). The Transverse Coastal Corridor (TCC) is an interesting case of hydrological systems from fresh to marine waters where mangrove forests dominate. We evaluated genetic diversity and structure of Rhizophora mangle across a range of hydrological conditions within the TCC using inter-simple sequence repeat molecular markers. Sampling included four hydrological systems, two localities inside each system, and fringe and dwarf trees. Genetic differentiation was evaluated at local (<100 km) and fine (<10 km) scales through a set of analyses, and genetic diversity was evaluated at all scale levels and between fringe and dwarf physiognomic types. Rhizophora mangle exhibited a high genetic structure at both scales with high genetic diversity. The genetic structure observed among hydrological systems likely reflects the historical dispersion of mangroves, whereas the FSGS reflect contemporary processes such as seed dispersal restriction, habitat fragmentation, and local water flow regimes. A higher genetic diversity for dwarf than for fringe trees and differentiation between both physiognomic types at a fine-scale were observed and discussed.
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Manrique-Poyato MI, Cabrero J, López-León MD, Perfectti F, Gómez R, Camacho JPM. Interpopulation spread of a parasitic B chromosome is unlikely through males in the grasshopper Eyprepocnemis plorans. Heredity (Edinb) 2020; 124:197-206. [PMID: 31285567 PMCID: PMC6906446 DOI: 10.1038/s41437-019-0248-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 06/11/2019] [Accepted: 06/25/2019] [Indexed: 11/09/2022] Open
Abstract
The near-neutral model of B chromosome evolution predicts that population invasion is quite fast. To test this prediction, in 1994, we introduced males of the grasshopper Eyprepocnemis plorans from a B-carrying population into a B-lacking population and monitored the evolution of B-chromosome frequency up to 2013. We observed fluctuating very low B frequency across years but, remarkably, the B chromosome introduced (the B2 variant) was found up to 1996 only, whereas the B1 variant was present from 1996 onwards, presumably introduced by fishermen using E. plorans males as bait. Effective introgression of genetic material from the donor population was evidenced by the presence of a satellite DNA on autosome 9 (up to 1999) and the presence of one individual in 2006 showing an ISSR marker profile being highly similar to that found in the donor population. This indicated that the males introduced by us effectively mated with resident females, but donor genes rapidly decreased in frequency after this non-recurrent migration event. Taken together, our results indicated: (i) that the non-recurrent migration event had a slight, transient genetic effect on the recipient population, which was diluted in only a few generations; and (ii) that even with recurrent migration (forced by fishermen) the B chromosome failed to increase in frequency. Bearing in mind that B chromosomes in this species drive through females only, we hypothesize that B chromosomes most likely failed invasion in both migration events because the migrating sex shows no B-drive.
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Affiliation(s)
| | - Josefa Cabrero
- Departamento de Genética, Facultad de Ciencias, Universidad de Granada, Avda. Fuentenueva s/n, 18071, Granada, Spain
| | - María Dolores López-León
- Departamento de Genética, Facultad de Ciencias, Universidad de Granada, Avda. Fuentenueva s/n, 18071, Granada, Spain
| | - Francisco Perfectti
- Departamento de Genética, Facultad de Ciencias, Universidad de Granada, Avda. Fuentenueva s/n, 18071, Granada, Spain
| | - Ricardo Gómez
- Departamento de Ciencia y Tecnología Agroforestal, E.T.S. de Ingenieros Agrónomos, Universidad de Castilla La Mancha, 02071, Albacete, Spain
| | - Juan Pedro M Camacho
- Departamento de Genética, Facultad de Ciencias, Universidad de Granada, Avda. Fuentenueva s/n, 18071, Granada, Spain.
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Dhar MK, Kour J, Kaul S. Origin, Behaviour, and Transmission of B Chromosome with Special Reference to Plantago lagopus. Genes (Basel) 2019; 10:E152. [PMID: 30781667 PMCID: PMC6410184 DOI: 10.3390/genes10020152] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 12/11/2018] [Accepted: 12/12/2018] [Indexed: 11/30/2022] Open
Abstract
B chromosomes have been reported in many eukaryotic organisms. These chromosomes occur in addition to the standard complement of a species. Bs do not pair with any of the A chromosomes and they have generally been considered to be non-essential and genetically inert. However, due to tremendous advancements in the technologies, the molecular composition of B chromosomes has been determined. The sequencing data has revealed that B chromosomes have originated from A chromosomes and they are rich in repetitive elements. In our laboratory, a novel B chromosome was discovered in Plantago lagopus. Using molecular cytogenetic techniques, the B chromosome was found to be composed of ribosomal DNA sequences. However, further characterization of the chromosome using next generation sequencing (NGS) etc. revealed that the B chromosome is a mosaic of sequences derived from A chromosomes, 5S ribosomal DNA (rDNA), 45S rDNA, and various types of repetitive elements. The transmission of B chromosome through the female sex track did not follow the Mendelian principles. The chromosome was found to have drive due to which it was perpetuating in populations. The present paper attempts to summarize the information on nature, transmission, and origin of B chromosomes, particularly the current status of our knowledge in P. lagopus.
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Affiliation(s)
- Manoj K Dhar
- Genome Research Laboratory, School of Biotechnology, University of Jammu, Jammu-180006, India.
| | - Jasmeet Kour
- Genome Research Laboratory, School of Biotechnology, University of Jammu, Jammu-180006, India.
| | - Sanjana Kaul
- Genome Research Laboratory, School of Biotechnology, University of Jammu, Jammu-180006, India.
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Variability of Minisatellite Loci and mtDNA in Individuals with and without B Chromosomes from Populations of the Grasshopper Dichroplus elongatus. Evol Biol 2017. [DOI: 10.1007/s11692-016-9406-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Sun W, Dong H, Gao YB, Su QF, Qian HT, Bai HY, Zhang ZT, Cong B. Genetic variation and geographic differentiation among populations of the nonmigratory agricultural pest Oedaleus infernalis (Orthoptera: Acridoidea) in China. JOURNAL OF INSECT SCIENCE (ONLINE) 2015; 15:iev132. [PMID: 26496789 PMCID: PMC4622177 DOI: 10.1093/jisesa/iev132] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/06/2015] [Accepted: 10/05/2015] [Indexed: 06/05/2023]
Abstract
The nonmigratory grasshopper Oedaleus infernalis Saussure (Orthoptera : Acridoidea) is an agricultural pest to crops and forage grasses over a wide natural geographical distribution in China. The genetic diversity and genetic variation among 10 geographically separated populations of O. infernalis was assessed using polymerase chain reaction-based molecular markers, including the intersimple sequence repeat and mitochondrial cytochrome oxidase sequences. A high level of genetic diversity was detected among these populations from the intersimple sequence repeat (H: 0.2628, I: 0.4129, Hs: 0.2130) and cytochrome oxidase analyses (Hd: 0.653). There was no obvious geographical structure based on an unweighted pair group method analysis and median-joining network. The values of FST, θ(II), and Gst estimated in this study are low, and the gene flow is high (Nm > 4). Analysis of the molecular variance suggested that most of the genetic variation occurs within populations, whereas only a small variation takes place between populations. No significant correlation was found between the genetic distance and geographical distance. Overall, our results suggest that the geographical distance plays an unimpeded role in the gene flow among O. infernalis populations.
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Affiliation(s)
- Wei Sun
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110161, China Key Laboratory of Integrated Pest Management on Crops in Northeast, Ministry of Agriculture, Institute of Plant Protection, Jilin Academy of Agricultural Sciences, Gongzhuling 136100, China
| | - Hui Dong
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110161, China
| | - Yue-Bo Gao
- Key Laboratory of Integrated Pest Management on Crops in Northeast, Ministry of Agriculture, Institute of Plant Protection, Jilin Academy of Agricultural Sciences, Gongzhuling 136100, China
| | - Qian-Fu Su
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110161, China Key Laboratory of Integrated Pest Management on Crops in Northeast, Ministry of Agriculture, Institute of Plant Protection, Jilin Academy of Agricultural Sciences, Gongzhuling 136100, China
| | - Hai-Tao Qian
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110161, China
| | - Hong-Yan Bai
- General Station of Forest Pest Management, State Forestry Administration, Shenyang 110034, China
| | - Zhu-Ting Zhang
- School of Environment & Life Science, Kaili University, Kaili 556011, China
| | - Bin Cong
- College of Plant Protection, Shenyang Agricultural University, Shenyang 110161, China
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Manrique-Poyato MI, López-León MD, Cabrero J, Gómez R, Perfectti F, Camacho JPM. Geographical Barriers Impeded the Spread of a Parasitic Chromosome. PLoS One 2015; 10:e0131277. [PMID: 26111020 PMCID: PMC4482515 DOI: 10.1371/journal.pone.0131277] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2015] [Accepted: 06/01/2015] [Indexed: 11/29/2022] Open
Abstract
Parasitic supernumerary (B) chromosomes show high capability to spread across populations. But the existence of abrupt discontinuities in their distribution demands an explanation. The grasshopper Eyprepocnemis plorans plorans harbour supernumerary chromosomes in all natural populations hitherto analyzed from the Circum-Mediterranean region, with the single exception of the headwaters of the Iberian Segura River and several of its tributaries. To ascertain the causes of this distribution pattern, we analyze here the genetic structure of five natural populations collected in this zone (two +B and three -B), by means of ISSR markers. We found significant population structure, with two kinds of populations coinciding with +B and -B ones, separated by strong barriers to gene flow. This gives strong support to the hypothesis that the non-B populations precede B origin, and that B-carrying individuals from coastal zones have been able to colonize upstream areas, until geographical barriers (usually narrow canyons and arid areas surrounding them) impeded their advance.
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Affiliation(s)
| | | | - Josefa Cabrero
- Departamento de Genética, Facultad de Ciencias, Universidad de Granada, 18071, Granada, Spain
| | - Ricardo Gómez
- Departamento de Ciencia y Tecnología Agroforestal, E.T.S. de Ingenieros Agrónomos, Universidad de Castilla La Mancha, 02071, Albacete, Spain
| | - Francisco Perfectti
- Departamento de Genética, Facultad de Ciencias, Universidad de Granada, 18071, Granada, Spain
| | - Juan Pedro M. Camacho
- Departamento de Genética, Facultad de Ciencias, Universidad de Granada, 18071, Granada, Spain
- * E-mail:
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Ruiz-Ruano FJ, Cuadrado Á, Montiel EE, Camacho JPM, López-León MD. Next generation sequencing and FISH reveal uneven and nonrandom microsatellite distribution in two grasshopper genomes. Chromosoma 2014; 124:221-34. [PMID: 25387401 DOI: 10.1007/s00412-014-0492-7] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2014] [Revised: 10/17/2014] [Accepted: 10/29/2014] [Indexed: 11/29/2022]
Abstract
Simple sequence repeats (SSRs), also known as microsatellites, are one of the prominent DNA sequences shaping the repeated fraction of eukaryotic genomes. In spite of their profuse use as molecular markers for a variety of genetic and evolutionary studies, their genomic location, distribution, and function are not yet well understood. Here we report the first thorough joint analysis of microsatellite motifs at both genomic and chromosomal levels in animal species, by a combination of 454 sequencing and fluorescent in situ hybridization (FISH) techniques performed on two grasshopper species. The in silico analysis of the 454 reads suggested that microsatellite expansion is not driving size increase of these genomes, as SSR abundance was higher in the species showing the smallest genome. However, the two species showed the same uneven and nonrandom location of SSRs, with clear predominance of dinucleotide motifs and association with several types of repetitive elements, mostly histone gene spacers, ribosomal DNA intergenic spacers (IGS), and transposable elements (TEs). The FISH analysis showed a dispersed chromosome distribution of microsatellite motifs in euchromatic regions, in coincidence with chromosome location patterns previously observed for many mobile elements in these species. However, some SSR motifs were clustered, especially those located in the histone gene cluster.
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Affiliation(s)
- Francisco J Ruiz-Ruano
- Departamento de Genética Facultad de Ciencias, Universidad de Granada, 18071, Granada, Spain
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11
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Fan Z, Jiang GF, Liu YX, He QX, Blanchard B. Population explosion in the yellow-spined bamboo locust Ceracris kiangsu and inferences for the impact of human activity. PLoS One 2014; 9:e89873. [PMID: 24603526 PMCID: PMC3946154 DOI: 10.1371/journal.pone.0089873] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2013] [Accepted: 01/27/2014] [Indexed: 11/29/2022] Open
Abstract
Geographic distance and geographical barriers likely play a considerable role in structuring genetic variation in species, although some migratory species may have less phylogeographic structure on a smaller spatial scale. Here, genetic diversity and the phylogenetic structure among geographical populations of the yellow-spined bamboo locust, Ceracris kiangsu, were examined with 16S rDNA and amplified fragment length polymorphisms (AFLPs). In this study, no conspicuous phylogeographical structure was discovered from either Maximum parsimony (MP) and Neighbor-joining (NJ) phylogenetic analyses. The effect of geographical isolation was not conspicuous on a large spatial scale.At smaller spatial scales local diversity of some populations within mountainous areas were detected using Nei's genetic distance and AMOVA. There is a high level of genetic diversity and a low genetic differentiation among populations in the C. kiangsu of South and Southeast China. Our analyses indicate that C. kiangsu is a monophyletic group. Our results also support the hypothesis that the C. kiangsu population is in a primary differentiation stage. Given the mismatch distribution, it is likely that a population expansion in C. kiangsu occurred about 0.242 Ma during the Quaternary interglaciation. Based on historical reports, we conjecture that human activities had significant impacts on the C. kiangsu gene flow.
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Affiliation(s)
- Zhou Fan
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Guo-Fang Jiang
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
- Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Yu-Xiang Liu
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Qi-Xin He
- Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Benjamin Blanchard
- Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, Michigan, United States of America
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12
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Manrique-Poyato MI, López-León MD, Cabrero J, Perfectti F, Camacho JPM. Spread of a new parasitic B chromosome variant is facilitated by high gene flow. PLoS One 2014; 8:e83712. [PMID: 24386259 PMCID: PMC3873393 DOI: 10.1371/journal.pone.0083712] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Accepted: 11/13/2013] [Indexed: 11/19/2022] Open
Abstract
The B24 chromosome variant emerged several decades ago in a Spanish population of the grasshopper Eyprepocnemis plorans and is currently reaching adjacent populations. Here we report, for the first time, how a parasitic B chromosome (a strictly vertically transmitted parasite) expands its geographical range aided by high gene flow in the host species. For six years we analyzed B frequency in several populations to the east and west of the original population and found extensive spatial variation, but only a slight temporal trend. The highest B24 frequency was found in its original population (Torrox) and it decreased closer to both the eastern and the western populations. The analysis of Inter Simple Sequence Repeat (ISSR) markers showed the existence of a low but significant degree of population subdivision, as well as significant isolation by distance (IBD). Pairwise Nem estimates suggested the existence of high gene flow between the four populations located in the Torrox area, with higher values towards the east. No significant barriers to gene flow were found among these four populations, and we conclude that high gene flow is facilitating B24 diffusion both eastward and westward, with minor role for B24 drive due to the arrival of drive suppressor genes which are also frequent in the donor population.
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Affiliation(s)
- María Inmaculada Manrique-Poyato
- Departamento de Genética, Facultad de Ciencias, Universidad de Granada, Granada, Spain
- Departamento de Células Troncales, Centro Andaluz de Biología Molecular y Medicina Regenerativa (CABIMER), Sevilla, Spain
| | | | - Josefa Cabrero
- Departamento de Genética, Facultad de Ciencias, Universidad de Granada, Granada, Spain
| | - Francisco Perfectti
- Departamento de Genética, Facultad de Ciencias, Universidad de Granada, Granada, Spain
| | - Juan Pedro M. Camacho
- Departamento de Genética, Facultad de Ciencias, Universidad de Granada, Granada, Spain
- * E-mail:
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13
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Bristol RM, Tucker R, Dawson DA, Horsburgh G, Prys-Jones RP, Frantz AC, Krupa A, Shah NJ, Burke T, Groombridge JJ. Comparison of historical bottleneck effects and genetic consequences of re-introduction in a critically endangered island passerine. Mol Ecol 2013; 22:4644-62. [DOI: 10.1111/mec.12429] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2012] [Revised: 06/21/2013] [Accepted: 06/24/2013] [Indexed: 11/26/2022]
Affiliation(s)
- Rachel M. Bristol
- Durrell Institute of Conservation and Ecology; School of Anthropology and Conservation; University of Kent; Marlowe Building Canterbury CT2 7NR UK
- NERC Biomolecular Analysis Facility; Department of Animal and Plant Sciences; University of Sheffield; Western Bank; Alfred Denny Building Sheffield South Yorkshire S20 2TN UK
| | - Rachel Tucker
- Durrell Institute of Conservation and Ecology; School of Anthropology and Conservation; University of Kent; Marlowe Building Canterbury CT2 7NR UK
- NERC Biomolecular Analysis Facility; Department of Animal and Plant Sciences; University of Sheffield; Western Bank; Alfred Denny Building Sheffield South Yorkshire S20 2TN UK
- Imperial College London; Silwood Park Campus, Buckhurst Road Ascot Berkshire SL5 7PY UK
| | - Deborah A. Dawson
- NERC Biomolecular Analysis Facility; Department of Animal and Plant Sciences; University of Sheffield; Western Bank; Alfred Denny Building Sheffield South Yorkshire S20 2TN UK
| | - Gavin Horsburgh
- NERC Biomolecular Analysis Facility; Department of Animal and Plant Sciences; University of Sheffield; Western Bank; Alfred Denny Building Sheffield South Yorkshire S20 2TN UK
| | - Robert P. Prys-Jones
- Bird Group; Department of Life Sciences; Natural History Museum; Akeman St Tring Herts HP23 6AP UK
| | - Alain C. Frantz
- NERC Biomolecular Analysis Facility; Department of Animal and Plant Sciences; University of Sheffield; Western Bank; Alfred Denny Building Sheffield South Yorkshire S20 2TN UK
| | - Andy Krupa
- NERC Biomolecular Analysis Facility; Department of Animal and Plant Sciences; University of Sheffield; Western Bank; Alfred Denny Building Sheffield South Yorkshire S20 2TN UK
| | - Nirmal J. Shah
- Nature Seychelles; Centre for Environment and Education; Roche Caiman PO Box 1310 Mahé Seychelles
| | - Terry Burke
- NERC Biomolecular Analysis Facility; Department of Animal and Plant Sciences; University of Sheffield; Western Bank; Alfred Denny Building Sheffield South Yorkshire S20 2TN UK
| | - Jim J. Groombridge
- Durrell Institute of Conservation and Ecology; School of Anthropology and Conservation; University of Kent; Marlowe Building Canterbury CT2 7NR UK
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