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Porrini MP, Porrini LP, Garrido PM, de Melo E Silva Neto C, Porrini DP, Muller F, Nuñez LA, Alvarez L, Iriarte PF, Eguaras MJ. Nosema ceranae in South American Native Stingless Bees and Social Wasp. Microb Ecol 2017; 74:761-764. [PMID: 28389730 DOI: 10.1007/s00248-017-0975-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Accepted: 03/24/2017] [Indexed: 06/07/2023]
Abstract
Besides the incipient research effort, the role of parasites as drivers of the reduction affecting pollinator populations is mostly unknown. Given the worldwide extension of the beekeeping practice and the diversity of pathogens affecting Apis mellifera populations, honey bee colonies are a certain source of parasite dispersion to other species. Here, we communicate the detection of the microsporidium Nosema ceranae, a relatively new parasite of honey bees, in stingless bees (Meliponini) and the social wasp Polybia scutellaris (Vespidae) samples from Argentina and Brazil by means of duplex PCR. Beyond the geographic location of the nests, N. ceranae was detected in seven from the eight Meliponini species analyzed, while Nosema apis, another common parasite of A. mellifera, was absent in all samples tested. Further research is necessary to determine if the presence of the parasite is also associated with established infection in host tissues. The obtained information enriches the current knowledge about pathologies that can infect or, at least, be vectored by native wild pollinators from South America.
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Affiliation(s)
- Martín Pablo Porrini
- Centro de Investigación en Abejas Sociales (CIAS), Facultad de Ciencias Exactas y Naturales, CONICET, Universidad Nacional de Mar del Plata, Funes 3350, 7600, Mar del Plata, Buenos Aires, Argentina.
| | - Leonardo Pablo Porrini
- Centro de Investigación en Abejas Sociales (CIAS), Facultad de Ciencias Exactas y Naturales, CONICET, Universidad Nacional de Mar del Plata, Funes 3350, 7600, Mar del Plata, Buenos Aires, Argentina
| | - Paula Melisa Garrido
- Centro de Investigación en Abejas Sociales (CIAS), Facultad de Ciencias Exactas y Naturales, CONICET, Universidad Nacional de Mar del Plata, Funes 3350, 7600, Mar del Plata, Buenos Aires, Argentina
| | - Carlos de Melo E Silva Neto
- Instituto Federal de Educação, Ciência e Tecnólogia de Goiás, Quartel do XX, Praça Brasil Ramos Caiado, 76600.000, Goiás, Brazil
| | - Darío Pablo Porrini
- GENEBSO, INBIOTEC, UNMdP, CONICET, Funes 3350, 7600, Mar del Plata, Argentina
| | - Fernando Muller
- Centro de Cría y mejoramiento de abejas "Erich Karl Faltus", N° 111009, Calle J. M. Estrada N°210, N3233, Capioví, Argentina
| | - Laura Alejandra Nuñez
- Laboratorio de Industrias Alimenticias, Universidad Nacional del Chaco Austral, Cdte. Fernandez 755, 3700, Pres. R. Sáenz Peña, Argentina
| | - Leopoldo Alvarez
- División Entomología, Museo de La Plata, CONICET, Universidad Nacional de La Plata, Edificio Anexo Museo, Unidades de Investigación FCN yM, 122 y 60, 1900FWA, La Plata, Argentina
| | - Pedro Fernandez Iriarte
- Laboratorio de Genética, Dto. de Biología, CONICET, UNMdP, Funes 3350, 7600, Mar del Plata, Argentina
| | - Martín Javier Eguaras
- Centro de Investigación en Abejas Sociales (CIAS), Facultad de Ciencias Exactas y Naturales, CONICET, Universidad Nacional de Mar del Plata, Funes 3350, 7600, Mar del Plata, Buenos Aires, Argentina
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Fanara JJ, Folguera G, Iriarte PF, Mensch J, Hasson E. Genotype by environment interactions in viability and developmental time in populations of cactophilic Drosophila. J Evol Biol 2006; 19:900-8. [PMID: 16674586 DOI: 10.1111/j.1420-9101.2006.01084.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The genetic and ecological basis of viability and developmental time differences between Drosophila buzzatii and D. koepferae were analysed using the isofemale line technique. Several isofemale lines were sampled from pairs of allopatric/sympatric populations of each species. Flies were reared in media prepared with decaying tissues of two of the main natural cactus hosts of each species. This experimental design enabled us to evaluate the relative contribution of phenotypic plasticity, genetic variation and genotype by environment interaction (G x E) to total phenotypic variation for two fitness traits, viability and developmental time. Our results revealed significant G x E in both traits, suggesting that the maintenance of genetic variation can be explained, at least in part, by diversifying selection in different patches of a heterogeneous environment in both species. However, the relative importance of the factors involved in the G x E varied between traits and populations within species. For viability, the G x E can be mainly attributed to changes in the rank order of lines across cacti. However, the pattern was different for developmental time. In D. buzzatii the G x E can be mainly accounted for by changes in among line variance across cacti, whereas changes in the rank order of lines across cacti was the main component in D. koepferae. These dissimilar patterns of variation between traits and species suggest that the evolutionary forces shaping genetic variation for developmental time and viability vary between populations within species and between species.
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Affiliation(s)
- J J Fanara
- Laboratorio de Evolución, Departamento de Ecología, Genética y Evolución, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria Pab. II, (1428) Buenos Aires, Argentina.
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Santos M, Iriarte PF, Céspedes W, Balanyà J, Fontdevila A, Serra L. Swift laboratory thermal evolution of wing shape (but not size) in Drosophila subobscura and its relationship with chromosomal inversion polymorphism. J Evol Biol 2004; 17:841-55. [PMID: 15271084 DOI: 10.1111/j.1420-9101.2004.00721.x] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Latitudinal clinal variation in wing size and shape has evolved in North American populations of Drosophila subobscura within about 20 years since colonization. While the size cline is consistent to that found in original European populations (and globally in other Drosophila species), different parts of the wing have evolved on the two continents. This clearly suggests that 'chance and necessity' are simultaneously playing their roles in the process of adaptation. We report here rapid and consistent thermal evolution of wing shape (but not size) that apparently is at odds with that suggestion. Three replicated populations of D. subobscura derived from an outbred stock at Puerto Montt (Chile) were kept at each of three temperatures (13, 18 and 22 degrees C) for 1 year and have diverged for 27 generations at most. We used the methods of geometric morphometrics to study wing shape variation in both females and males from the thermal stocks, and rates of genetic divergence for wing shape were found to be as fast or even faster than those previously estimated for wing size on a continental scale. These shape changes did not follow a neat linear trend with temperature, and are associated with localized shifts of particular landmarks with some differences between sexes. Wing shape variables were found to differ in response to male genetic constitution for polymorphic chromosomal inversions, which strongly suggests that changes in gene arrangement frequencies as a response to temperature underlie the correlated changes in wing shape because of gene-inversion linkage disequilibria. In fact, we also suggest that the shape cline in North America likely predated the size cline and is consistent with the quite different evolutionary rates between inversion and size clines. These findings cast strong doubts on the supposed 'unpredictability' of the geographical cline for wing traits in D. subobscura North American colonizing populations.
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Affiliation(s)
- M Santos
- Grup de Biologia Evolutiva (GBE), Departament de Genètica i de Microbiologia, Universitat Autònoma de Barcelona, Barcelona, Spain.
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