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Stazione L, Norry FM, Gomez FH, Sambucetti P. Heat knockdown resistance and chill-coma recovery as correlated responses to selection on mating success at high temperature in Drosophila buzzatii. Ecol Evol 2020; 10:1998-2006. [PMID: 32128132 PMCID: PMC7042739 DOI: 10.1002/ece3.6032] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 12/23/2019] [Accepted: 12/24/2019] [Indexed: 01/13/2023] Open
Abstract
Reproduction and related traits such as mating success are strongly affected by thermal stress. We tested direct and correlated responses to artificial selection in replicated lines of Drosophila buzzatii that were selected for mating success at high temperature. Knockdown resistance at high temperature (KRHT) and chill-coma recovery (CCR) were tested as correlated selection responses. Virgin flies were allowed to mate for four hours at 33°C in three replicated lines (S lines) to obtain the selected flies and then returned at 25°C to lay eggs. Other three replicated lines were maintained at 25°C without any selection as control (C lines). After 15 selection generations, KRHT and CCR were measured. Both traits were assessed in flies that did not receive any hardening pretreatments as well as in flies that were either heat or cold hardened. Thermotolerance traits showed significant correlated responses with higher KRHT in S than in C lines, both with a heat-hardening pretreatment and without a heat-hardening pretreatment. CCR time was longer in S than in C lines both with a cold-hardening pretreatment and without a cold-hardening pretreatment. Hardening treatments improved both KRHT and CCR in all cases excepting KRHT in C lines. Overall, KRHT and CCR showed an antagonistic pattern of correlated responses to our selection regime, suggesting either pleiotropy or tightly linked trait-specific genes partially affecting KRHT and CCR.
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Affiliation(s)
- Leonel Stazione
- Departamento de EcologíaGenética y EvoluciónFacultad de Ciencias Exactas y NaturalesUniversidad de Buenos AiresBuenos AiresArgentina
- Instituto de EcologíaGenética y Evolución (IEGEBA)CONICET‐Universidad de Buenos AiresBuenos AiresArgentina
| | - Fabian M. Norry
- Departamento de EcologíaGenética y EvoluciónFacultad de Ciencias Exactas y NaturalesUniversidad de Buenos AiresBuenos AiresArgentina
- Instituto de EcologíaGenética y Evolución (IEGEBA)CONICET‐Universidad de Buenos AiresBuenos AiresArgentina
| | - Federico H. Gomez
- Departamento de EcologíaGenética y EvoluciónFacultad de Ciencias Exactas y NaturalesUniversidad de Buenos AiresBuenos AiresArgentina
- Instituto de EcologíaGenética y Evolución (IEGEBA)CONICET‐Universidad de Buenos AiresBuenos AiresArgentina
| | - Pablo Sambucetti
- Departamento de EcologíaGenética y EvoluciónFacultad de Ciencias Exactas y NaturalesUniversidad de Buenos AiresBuenos AiresArgentina
- Instituto de EcologíaGenética y Evolución (IEGEBA)CONICET‐Universidad de Buenos AiresBuenos AiresArgentina
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Tolomeo D, Capozzi O, Chiatante G, Sineo L, Ishida T, Archidiacono N, Rocchi M, Stanyon R. Eight million years of maintained heterozygosity in chromosome homologs of cercopithecine monkeys. Chromosoma 2020; 129:57-67. [PMID: 31925526 DOI: 10.1007/s00412-020-00731-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 12/13/2019] [Accepted: 01/02/2020] [Indexed: 10/25/2022]
Abstract
In the Cercopithecini ancestor two chromosomes, homologous to human chromosomes 20 and 21, fused to form the Cercopithecini specific 20/21 association. In some individuals from the genus Cercopithecus, this association was shown to be polymorphic for the position of the centromere, suggesting centromere repositioning events. We set out to test this hypothesis by defining the evolutionary history of the 20/21 association in four Cercopithecini species from three different genera. The marker order of the various 20/21 associations was established using molecular cytogenetic techniques, including an array of more than 100 BACs. We discovered that five different forms of the 20/21 association were present in the four studied Cercopithecini species. Remarkably, in the two Cercopithecus species, we found individuals in which one homolog conserved the ancestral condition, but the other homolog was highly rearranged. The phylogenetic analysis showed that the heterozygosity in these two species originated about 8 million years ago and was maintained for this entire arc of time, surviving multiple speciation events. Our report is a remarkable extension of Dobzhansky's pioneering observation in Drosophila concerning the maintenance of chromosomal heterozygosity due to selective advantage. Dobzhansky's hypothesis recently received strong support in a series of detailed reports on the fruit fly genome. Our findings are first extension to primates, indeed to Old World monkeys phylogenetically close to humans of an analogous situation. Our results have important implications for hypotheses on how chromosome rearrangements, selection, and speciation are related.
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Affiliation(s)
- Doron Tolomeo
- Department of Biology, University of Florence, Florence, Italy
| | | | | | - Luca Sineo
- Dipartimento di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche, Università degli Studi di Palermo, Palermo, Italy
| | - Takafumi Ishida
- Department of Biological Sciences, Graduate School of Science, University of Tokyo, Tokyo, Japan
| | | | | | - Roscoe Stanyon
- Department of Biology, University of Florence, Florence, Italy.
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Vrdoljak J, Padró J, De Panis D, Soto IM, Carreira VP. Protein–alkaloid interaction in larval diet affects fitness in cactophilic Drosophila (Diptera: Drosophilidae). Biol J Linn Soc Lond 2019. [DOI: 10.1093/biolinnean/blz028] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Juan Vrdoljak
- Instituto de Ecología, Genética y Evolución de Buenos Aires (IEGEBA – CONICET), DEGE, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Intendente Guiraldes, Buenos Aires, Argentina
| | - Julián Padró
- Instituto de Ecología, Genética y Evolución de Buenos Aires (IEGEBA – CONICET), DEGE, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Intendente Guiraldes, Buenos Aires, Argentina
| | - Diego De Panis
- Instituto de Ecología, Genética y Evolución de Buenos Aires (IEGEBA – CONICET), DEGE, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Intendente Guiraldes, Buenos Aires, Argentina
| | - Ignacio M Soto
- Instituto de Ecología, Genética y Evolución de Buenos Aires (IEGEBA – CONICET), DEGE, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Intendente Guiraldes, Buenos Aires, Argentina
| | - Valeria P Carreira
- Instituto de Ecología, Genética y Evolución de Buenos Aires (IEGEBA – CONICET), DEGE, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Intendente Guiraldes, Buenos Aires, Argentina
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Serrato-Capuchina A, Matute DR. The Role of Transposable Elements in Speciation. Genes (Basel) 2018; 9:E254. [PMID: 29762547 PMCID: PMC5977194 DOI: 10.3390/genes9050254] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 04/26/2018] [Accepted: 04/26/2018] [Indexed: 01/20/2023] Open
Abstract
Understanding the phenotypic and molecular mechanisms that contribute to genetic diversity between and within species is fundamental in studying the evolution of species. In particular, identifying the interspecific differences that lead to the reduction or even cessation of gene flow between nascent species is one of the main goals of speciation genetic research. Transposable elements (TEs) are DNA sequences with the ability to move within genomes. TEs are ubiquitous throughout eukaryotic genomes and have been shown to alter regulatory networks, gene expression, and to rearrange genomes as a result of their transposition. However, no systematic effort has evaluated the role of TEs in speciation. We compiled the evidence for TEs as potential causes of reproductive isolation across a diversity of taxa. We find that TEs are often associated with hybrid defects that might preclude the fusion between species, but that the involvement of TEs in other barriers to gene flow different from postzygotic isolation is still relatively unknown. Finally, we list a series of guides and research avenues to disentangle the effects of TEs on the origin of new species.
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Affiliation(s)
- Antonio Serrato-Capuchina
- Biology Department, Genome Sciences Building, University of North Carolina, Chapel Hill, NC 27514, USA.
| | - Daniel R Matute
- Biology Department, Genome Sciences Building, University of North Carolina, Chapel Hill, NC 27514, USA.
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Fuller ZL, Haynes GD, Richards S, Schaeffer SW. Genomics of natural populations: Evolutionary forces that establish and maintain gene arrangements inDrosophila pseudoobscura. Mol Ecol 2017; 26:6539-6562. [DOI: 10.1111/mec.14381] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Revised: 10/04/2017] [Accepted: 10/07/2017] [Indexed: 12/19/2022]
Affiliation(s)
- Zachary L. Fuller
- Department of Biology; 208 Erwin W. Mueller Laboratory; The Pennsylvania State University; University Park PA USA
| | - Gwilym D. Haynes
- Department of Biology; 208 Erwin W. Mueller Laboratory; The Pennsylvania State University; University Park PA USA
| | - Stephen Richards
- Human Genome Sequencing Center; Baylor College of Medicine; Houston TX USA
| | - Stephen W. Schaeffer
- Department of Biology; 208 Erwin W. Mueller Laboratory; The Pennsylvania State University; University Park PA USA
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Fanara JJ, Soto IM, Lipko P, Hasson E. First Record of Drosophila buzzatii (Patterson & Wheeler) (Diptera: Drosophilidae) Emerging from a Non-Cactus Host. NEOTROPICAL ENTOMOLOGY 2016; 45:333-335. [PMID: 26960546 DOI: 10.1007/s13744-016-0373-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Accepted: 01/22/2016] [Indexed: 06/05/2023]
Abstract
Drosophila buzzatii (Patterson & Wheeler), a typical cactophilic species of the repleta group, is registered for the first time emerging from Melon (Cucumis melo) in western Argentina. The analysis of inversion polymorphism and genetic diversity of mitochondrial cytochrome oxidase subunit I gene (mtCOI) provided additional evidence that corroborated the presence of a high proportion of D. buzzatii among the flies emerged from melon. This finding set the scenario for a broader range of possible hosts and host-related distribution and dispersion for this widespread species.
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Affiliation(s)
- J J Fanara
- Depto de Ecología, Genética y Evolución, Fac de Ciencias Exactas y Naturales, Ciudad Universitaria, Pabellón II, Univ de Buenos Aires, Buenos Aires, 1428, Argentina.
- Instituto de Ecología, Genética y Evolución (IEGEBA), CONICET, Buenos Aires, Argentina.
| | - I M Soto
- Depto de Ecología, Genética y Evolución, Fac de Ciencias Exactas y Naturales, Ciudad Universitaria, Pabellón II, Univ de Buenos Aires, Buenos Aires, 1428, Argentina
- Instituto de Ecología, Genética y Evolución (IEGEBA), CONICET, Buenos Aires, Argentina
| | - P Lipko
- Depto de Ecología, Genética y Evolución, Fac de Ciencias Exactas y Naturales, Ciudad Universitaria, Pabellón II, Univ de Buenos Aires, Buenos Aires, 1428, Argentina
- Instituto de Ecología, Genética y Evolución (IEGEBA), CONICET, Buenos Aires, Argentina
- Instituto de Filosofía "Dr. Alejandro Korn", Fac de Filosofía y Letras, Univ de Buenos Aires, Buenos Aires, Argentina
| | - E Hasson
- Depto de Ecología, Genética y Evolución, Fac de Ciencias Exactas y Naturales, Ciudad Universitaria, Pabellón II, Univ de Buenos Aires, Buenos Aires, 1428, Argentina
- Instituto de Ecología, Genética y Evolución (IEGEBA), CONICET, Buenos Aires, Argentina
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Ji LD, Qiu YQ, Xu J, Irwin DM, Tam SC, Tang NLS, Zhang YP. Genetic adaptation of the hypoxia-inducible factor pathway to oxygen pressure among eurasian human populations. Mol Biol Evol 2012; 29:3359-70. [PMID: 22628534 DOI: 10.1093/molbev/mss144] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Research into the mechanisms of human adaptation to the hypoxic environment of high altitude is of great interest to the fields of human physiology and clinical medicine. Recently, the gene EGLN1, from the hypoxia-inducible factor (HIF) pathway, was identified as being involved in the hypoxic adaptation of highland Andeans and Tibetans. Both highland Andeans and Tibetans have adapted to an extremely hypoxic habitat and less attention has been paid to populations living in normoxic conditions at sea level and mild-hypoxic environments of moderate altitude, thus, whether a common adaptive mechanism exists in response to quantitative variations of environmental oxygen pressure over a wide range of residing altitudes is unknown. Here, we first performed a genome-wide association study of 35 populations from the Human Genome Diversity-CEPH Panel who dwell at sea level to moderate altitude in Eurasia (N = 691; 0-2,500 m) to identify the genetic adaptation profile of normoxic and mild-hypoxic inhabitants. In addition, we systematically compared the results from the present study to six previously published genome-wide scans of highland Andeans and Tibetans to identify shared adaptive signals in response to quantitative variations of oxygen pressure. For normoxic and mild-hypoxic populations, the strongest adaptive signal came from the mu opioid receptor-encoding gene (OPRM1, 2.54 × 10(-9)), which has been implicated in the stimulation of respiration, while in the systematic survey the EGLN1-DISC1 locus was identified in all studies. A replication study performed with highland Tibetans (N = 733) and sea level Han Chinese (N = 748) confirmed the association between altitude and SNP allele frequencies in OPRM1 (in Tibetans only, P < 0.01) and in EGLN1-DISC1 (in Tibetans and Han Chinese, P < 0.01). Taken together, identification of the OPRM1 gene suggests that cardiopulmonary adaptation mechanisms are important and should be a focus in future studies of hypoxia adaptation. Furthermore, the identification of the EGLN1 gene from the HIF pathway suggests a common adaptive mechanism for Eurasian human populations residing at different altitudes with different oxygen pressures.
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Affiliation(s)
- Lin-Dan Ji
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, China
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