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Vásquez-Aguilar AA, Hernández-Rodríguez D, Martínez-Mota R. Predicting future climate change impacts on the potential distribution of the black howler monkey (Alouatta pigra): an endangered arboreal primate. Environ Monit Assess 2024; 196:392. [PMID: 38520558 DOI: 10.1007/s10661-024-12543-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 11/10/2023] [Accepted: 03/16/2024] [Indexed: 03/25/2024]
Abstract
Climate change is one of the main factors affecting biodiversity worldwide at an alarming rate. In addition to increases in global extreme weather events, melting of polar ice caps, and subsequent sea level rise, climate change might shift the geographic distribution of species. In recent years, interest in understanding the effects of climate change on species distribution has increased, including species which depend greatly on forest cover for survival, such as strictly arboreal primates. Here, we generate a series of species distribution models (SDMs) to evaluate future projections under different climate change scenarios on the distribution of the black howler monkey (Alouatta pigra), an endemic endangered primate species. Using SDMs, we assessed current and future projections of their potential distribution for three Social Economic Paths (SSPs) for the years 2030, 2050, 2070, and 2090. Specifically, we found that precipitation seasonality (BIO15, 30.8%), isothermality (BIO3, 25.4%), and mean diurnal range (BIO2, 19.7.%) are the main factors affecting A. pigra distribution. The future climate change models suggested a decrease in the potential distribution of A. pigra by projected scenarios (from - 1.23 to - 12.66%). The highly suitable area was the most affected above all in the more pessimist scenario most likely related to habitat fragmentation. Our study provides new insights into the potential future distribution and suitable habitats of Alouatta pigra. Such information could be used by local communities, governments, and non-governmental organizations for conservation planning of this primate species.
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Affiliation(s)
| | | | - Rodolfo Martínez-Mota
- Centro de Investigaciones Tropicales (CITRO), Universidad Veracruzana, Xalapa, Veracruz, Mexico
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Morales-Saldaña S, Villafán E, Vásquez-Aguilar AA, Ramírez-Barahona S, Ibarra-Laclette E, Ornelas JF. The complete chloroplast genome sequence of Psittacanthus schiedeanus (Cham. & Schltdl.) G.Don. (Santalales: Loranthaceae), the first plastome of a mistletoe species in the Psittacantheae tribe. Mitochondrial DNA B Resour 2024; 9:5-10. [PMID: 38187014 PMCID: PMC10769147 DOI: 10.1080/23802359.2023.2298078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 12/18/2023] [Indexed: 01/09/2024] Open
Abstract
Psittacanthus schiedeanus (Cham. & Schltdl.) G.Don., 1834, is a mistletoe species in the Loranthaceae, characteristic of the canopy in cloud forest edges and widely distributed in northern Mesoamerica. Here, we report the complete chloroplast genome sequence of P. schiedeanus, the first for a species in the Psittacantheae tribe. The circularized quadripartite structure of the P. schiedeanus chloroplast genome was 122,586 bp in length and included a large single-copy region of 72,507 bp and two inverted repeats of 21,283 bp separated by a small single-copy region of 7,513 bp. The genome contained 112 genes, of which 96 are unique, including 65 protein-coding genes, 27 transfer RNA, and four ribosomal RNA. The overall GC content in the plastome of P. schiedeanus is 36.9%. Based on 43 published complete chloroplast genome sequences for species in the families Loranthaceae and Santalaceae (Santalales), the maximum-likelihood phylogenetic tree with high-support bootstrap values indicated that P. schiedeanus in the Psittacantheae tribe is sister to the tribe Lorantheae. The chloroplast genome provided in this study represents a valuable resource for genetic, phylogenetic and conservation studies of Psittacanthus species, and an important advance for unraveling the evolutionary history of these hemiparasitic plants.
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Affiliation(s)
- Saddan Morales-Saldaña
- Red de Biología Evolutiva, Instituto de Ecología, A.C. (INECOL), Xalapa, Veracruz, Mexico
| | - Emanuel Villafán
- Red de Estudios Moleculares Avanzados, Instituto de Ecología, A.C. (INECOL), Xalapa, Veracruz, Mexico
| | | | - Santiago Ramírez-Barahona
- Departamento de Botánica, Instituto de Biología, Universidad Nacional Autónoma de México (UNAM), Ciudad de México, Mexico
| | - Enrique Ibarra-Laclette
- Red de Estudios Moleculares Avanzados, Instituto de Ecología, A.C. (INECOL), Xalapa, Veracruz, Mexico
| | - Juan Francisco Ornelas
- Red de Biología Evolutiva, Instituto de Ecología, A.C. (INECOL), Xalapa, Veracruz, Mexico
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Vásquez-Aguilar AA, Macswiney G MC, Rodríguez-Gómez F, Ornelas JF. Mitochondrial, morphological and environmental data partially support current subspecies designation in Amazilia yucatanensis hummingbirds. Biol J Linn Soc Lond 2023. [DOI: 10.1093/biolinnean/blad004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
Abstract
Abstract
Historical geological events and Pleistocene climatic fluctuations have played important roles in shaping distribution and population differentiation across taxa. The buff-bellied hummingbird (Amazilia yucatanensis) is widely distributed along the Gulf of Mexico slope and the Yucatan Peninsula. Here, we obtained measurements and sequenced two mitochondrial DNA fragments from currently recognized subspecies: Amazilia yucatanensis yucatanensis (YUC), Amazilia yucatanensis cerviniventris (CER) and Amazilia yucatanensis chalconota (CHA). Additionally, we tested for their genetic and morphological differentiation, demographic expansion, palaeoclimatic distribution and niche overlap. Our results reveal genetic differentiation between two groups of populations: (1) from the Yucatan Peninsula to Veracruz (YUC+CER); and (2) from Veracruz to Tamaulipas (CHA). Neutrality tests and Bayesian skyline plots suggest past demographic expansion without changes in the effective population size over time. The potential distribution was fragmented at the Trans-Mexican Volcanic Belt and expanded northwards during the Last Glacial Maximum and Mid-Holocene to current conditions. Niche overlap was higher between YUC and CER. The environmental space occupied by subspecies was more similar to each other than expected by chance but significantly non-equivalent. Our results provide new insight on the distribution of this widespread hummingbird species and suggest that fragmentation during glaciations and differences in habitat have played a role in the recent diversification.
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Affiliation(s)
- Antonio Acini Vásquez-Aguilar
- Departamento de Biología Evolutiva, Instituto de Ecología , A.C. (INECOL) , Carretera antigua a Coatepec No. 351, El Haya, Xalapa, Veracruz 91073 , Mexico
- Centro de Investigaciones Tropicales (CITRO), Universidad Veracruzana , Xalapa, Veracruz , Mexico
| | - M Cristina Macswiney G
- Centro de Investigaciones Tropicales (CITRO), Universidad Veracruzana , Xalapa, Veracruz , Mexico
| | - Flor Rodríguez-Gómez
- Centro Universitario de Ciencias Exactas e Ingenierías (CUCEI), Universidad de Guadalajara , Guadalajara, Jalisco , Mexico
| | - Juan Francisco Ornelas
- Departamento de Biología Evolutiva, Instituto de Ecología , A.C. (INECOL) , Carretera antigua a Coatepec No. 351, El Haya, Xalapa, Veracruz 91073 , Mexico
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Ibarra-Laclette E, Venancio-Rodríguez CA, Vásquez-Aguilar AA, Alonso-Sánchez AG, Pérez-Torres CA, Villafán E, Ramírez-Barahona S, Galicia S, Sosa V, Rebollar EA, Lara C, González-Rodríguez A, Díaz-Fleisher F, Ornelas JF. Transcriptional Basis for Haustorium Formation and Host Establishment in Hemiparasitic Psittacanthus schiedeanus Mistletoes. Front Genet 2022; 13:929490. [PMID: 35769994 PMCID: PMC9235361 DOI: 10.3389/fgene.2022.929490] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 05/20/2022] [Indexed: 11/13/2022] Open
Abstract
The mistletoe Psittacanthus schiedeanus, a keystone species in interaction networks between plants, pollinators, and seed dispersers, infects a wide range of native and non-native tree species of commercial interest. Here, using RNA-seq methodology we assembled the whole circularized quadripartite structure of P. schiedeanus chloroplast genome and described changes in the gene expression of the nuclear genomes across time of experimentally inoculated seeds. Of the 140,467 assembled and annotated uniGenes, 2,000 were identified as differentially expressed (DEGs) and were classified in six distinct clusters according to their expression profiles. DEGs were also classified in enriched functional categories related to synthesis, signaling, homoeostasis, and response to auxin and jasmonic acid. Since many orthologs are involved in lateral or adventitious root formation in other plant species, we propose that in P. schiedeanus (and perhaps in other rootless mistletoe species), these genes participate in haustorium formation by complex regulatory networks here described. Lastly, and according to the structural similarities of P. schiedeanus enzymes with those that are involved in host cell wall degradation in fungi, we suggest that a similar enzymatic arsenal is secreted extracellularly and used by mistletoes species to easily parasitize and break through tissues of the host.
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Affiliation(s)
- Enrique Ibarra-Laclette
- Instituto de Ecología A.C. (INECOL), Red de Estudios Moleculares Avanzados (REMAv), Xalapa, Mexico
- *Correspondence: Enrique Ibarra-Laclette, ; Juan Francisco Ornelas,
| | | | | | | | - Claudia-Anahí Pérez-Torres
- Instituto de Ecología A.C. (INECOL), Red de Estudios Moleculares Avanzados (REMAv), Xalapa, Mexico
- Investigador por Mexico-CONACyT en el Instituto de Ecología A.C. (INECOL), Xalapa, Mexico
| | - Emanuel Villafán
- Instituto de Ecología A.C. (INECOL), Red de Estudios Moleculares Avanzados (REMAv), Xalapa, Mexico
| | - Santiago Ramírez-Barahona
- Departamento de Botánica, Instituto de Biología, Universidad Nacional Autónoma de Mexico (UNAM), Ciudad de Mexico, Mexico
| | - Sonia Galicia
- Instituto de Ecología A.C. (INECOL), Red de Biología Evolutiva, Xalapa, Mexico
| | - Victoria Sosa
- Instituto de Ecología A.C. (INECOL), Red de Biología Evolutiva, Xalapa, Mexico
| | - Eria A. Rebollar
- Centro de Ciencias Genómicas, Universidad Nacional Autónoma de Mexico, Cuernavaca, Mexico
| | - Carlos Lara
- Centro de Investigación en Ciencias Biológicas, Universidad Autónoma de Tlaxcala, Tlaxcala, Mexico
| | - Antonio González-Rodríguez
- Laboratorio de Genética de la Conservación, Instituto de Investigaciones en Ecosistemas y Sustentabilidad (IIES), UNAM, Morelia, Mexico
| | | | - Juan Francisco Ornelas
- Instituto de Ecología A.C. (INECOL), Red de Biología Evolutiva, Xalapa, Mexico
- *Correspondence: Enrique Ibarra-Laclette, ; Juan Francisco Ornelas,
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Vásquez-Aguilar AA, Barbachano-Guerrero A, Angulo DF, Jarquín-Díaz VH. Phylogeography and population differentiation in Hepatozoon canis (Apicomplexa: Hepatozoidae) reveal expansion and gene flow in world populations. Parasit Vectors 2021; 14:467. [PMID: 34521451 PMCID: PMC8439048 DOI: 10.1186/s13071-021-04924-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 08/03/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Hepatozoon canis is a protozoan transmitted to dogs and other wild carnivores by the ingestion of ticks containing mature oocysts and is considered the principal cause of canine hepatozoonosis in the world. Here, we examined ribosomal RNA 18S gene sequence variation to determine the genetic differences and phylogeographic diversity of H. canis from various geographical areas around the world. METHODS We used 550 publicly available sequences of H. canis from 46 countries to assess haplotype relationships, geographical structure, genetic diversity indices, and relationships among populations. We performed neutrality tests and pairwise comparisons of fixation index (FST) values between groups and pairwise comparisons of FST values between populations. To determine whether populations are structured, analyses of molecular variance (AMOVAs) and spatial analysis of molecular variance (SAMOVA) were performed. RESULTS The dataset of H. canis yielded 76 haplotypes. Differentiation among populations indicated that there is no phylogeographical structure (GST = 0.302 ± 0.0475). Moreover, when samples were grouped by continents a significant FST was obtained, meaning that populations were genetically differentiated. The AMOVA showed that 57.4% of the genetic variation was explained by differences within populations when all locations were treated as a single group and revealed that there is no population structure when populations are grouped into two, three, and four groups (FCT, p > 0.05), suggesting that dispersal between populations is high. SAMOVA revealed significant FCT values for groups K = 5. The Tajima's D and Fu's Fs show that populations have undergone recent expansion, and the mismatch distribution analysis showed population expansion (multimodal distribution). CONCLUSIONS The current molecular data confirmed that H. canis does not show phylogeographic or population structure. The haplotypes exhibit low genetic differentiation, suggesting a recent expansion due to gene flow among populations. These results provide pivotal information required for future detailed population genetic analysis or to establish control strategies of this parasite.
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Affiliation(s)
- Antonio Acini Vásquez-Aguilar
- Red de Biología Evolutiva, Instituto de Ecología, 91073 Xalapa, Veracruz Mexico
- Centro de Investigaciones Tropicales, Universidad Veracruzana, Xalapa, Veracruz 91000 México
| | | | - Diego F. Angulo
- Red de Biología Evolutiva, Instituto de Ecología, 91073 Xalapa, Veracruz Mexico
| | - Víctor Hugo Jarquín-Díaz
- Experimental and Clinical Research Center, A Cooperation Between the Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association and the Charité-Universitätsmedizin Berlin, Berlin, Germany
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität Zu Berlin, Experimental and Clinical Research Center, Lindenberger Weg 80, 13125 Berlin, Germany
- Max-Delbrück-Center for Molecular Medicine in the Helmholtz Association (MDC), Berlin, Germany
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Ornelas JF, García JM, Ortiz-Rodriguez AE, Licona-Vera Y, Gándara E, Molina-Freaner F, Vásquez-Aguilar AA. Tracking Host Trees: The Phylogeography of Endemic Psittacanthus sonorae (Loranthaceae) Mistletoe in the Sonoran Desert. J Hered 2019; 110:229-246. [PMID: 30496534 DOI: 10.1093/jhered/esy065] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Accepted: 11/26/2018] [Indexed: 01/29/2023] Open
Abstract
The host dependence of mistletoes suggests that they track the distributions of their hosts. However, the factors that determine the geographic distribution of mistletoes are not well understood. In this study, the phylogeography of Psittacanthus sonorae was reconstructed by sequencing one nuclear (ITS) and two plastid (trnL-F and atpB-rbcL) regions of 148 plants from populations separated by the Sea of Cortez. Divergence time and gene flow were estimated to gain insight into the historical demography and geographic structuring of genetic variation. We also described and mapped the spatial distribution of suitable habitat occupied by P. sonorae and its most common host Bursera microphylla in the Sonoran Desert, along with their responses to Quaternary climate fluctuations using environmental data and ecological niche modeling (ENM). We detected environmental and genetic differentiation between the peninsular and continental P. sonorae populations. Population divergence occurred during the Pleistocene, around the time of the Last Glacial Maximum. No signals of population growth were detected, with net gene flow moving from the continent to the peninsula. ENM models indicate decoupled responses by the mistletoe and its main host to past climate changes. For the Last Interglacial to the present, most models produce only partial areas of overlap on both the peninsula and the continent. Our results support a scenario of Late-Pleistocene isolation and divergence with asymmetrical gene flow between peninsular and continental P. sonorae populations. Continental populations migrated to the peninsula and the spatial isolation probably produced genetic differentiation under different environmental conditions.
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Affiliation(s)
- Juan Francisco Ornelas
- Departamento de Biología Evolutiva, Instituto de Ecología, A.C. (INECOL), Carretera antigua a Coatepec, El Haya, Xalapa, Veracruz, Mexico
| | - José Manuel García
- Departamento de Biología Evolutiva, Instituto de Ecología, A.C. (INECOL), Carretera antigua a Coatepec, El Haya, Xalapa, Veracruz, Mexico
| | - Andrés E Ortiz-Rodriguez
- Departamento de Biología Evolutiva, Instituto de Ecología, A.C. (INECOL), Carretera antigua a Coatepec, El Haya, Xalapa, Veracruz, Mexico.,Instituto de Investigaciones Forestales, Universidad Veracruzana, Xalapa, Veracruz, Mexico
| | - Yuyini Licona-Vera
- Departamento de Biología Evolutiva, Instituto de Ecología, A.C. (INECOL), Carretera antigua a Coatepec, El Haya, Xalapa, Veracruz, Mexico
| | - Etelvina Gándara
- Departamento de Biología Evolutiva, Instituto de Ecología, A.C. (INECOL), Carretera antigua a Coatepec, El Haya, Xalapa, Veracruz, Mexico.,Facultad de Ciencias Biológicas, Benemérita Universidad Autónoma de Puebla, Puebla, Puebla, Mexico
| | - Francisco Molina-Freaner
- Instituto de Ecología e Instituto de Geología, Universidad Nacional Autónoma de México (UNAM), Estación Regional del Noroeste, Hermosillo, Sonora, Mexico
| | - Antonio Acini Vásquez-Aguilar
- Departamento de Biología Evolutiva, Instituto de Ecología, A.C. (INECOL), Carretera antigua a Coatepec, El Haya, Xalapa, Veracruz, Mexico
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Hernández-Rodríguez D, Vásquez-Aguilar AA, Serio-Silva JC, Rebollar EA, Azaola-Espinosa A. Molecular detection of Bifidobacterium spp. in faeces of black howler monkeys (Alouatta pigra). J Med Primatol 2018; 48:99-105. [PMID: 30520095 DOI: 10.1111/jmp.12395] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 10/31/2018] [Accepted: 11/09/2018] [Indexed: 12/11/2022]
Abstract
BACKGROUND Bifidobacterium genus are considered to be beneficial bacteria for their hosts; however, knowledge about the specific species that are part of the gut microbiome of howler monkeys is scarce. Polymerase chain reaction (PCR) is a useful technique for the identification of non-cultivable or difficult to grow bacterial species. With the goal of detecting species of the genus Bifidobacterium in black howler monkeys, we used PCR on DNA derived from faecal samples. METHODS We collected and extracted DNA from 40 faecal samples. Using specific primers, we performed PCR and nested PCR to detect members of the Bifidobacterium genus and a subset of species: Bifidobacterium adolescentis, Bifidobacterium bifidum, Bifidobacterium infantis, Bifidobacterium longum and Bifidobacterium animalis subsp. animalis. RESULTS 97.5% (39/40) of the samples were positive for Bifidobacterium spp. We found B longum in 100% of the analysed samples. CONCLUSIONS This is the first report of B longum in black howler monkey faeces.
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Affiliation(s)
- Dolores Hernández-Rodríguez
- Doctorado en Ciencias Agropecuarias, Universidad Autónoma Metropolitana-Xochimilco, Coyoacán, CDMX, México.,Instituto de Ecología, A.C. Red de Biología y Conservación de Vertebrados, Xalapa, Veracruz, México
| | | | - Juan Carlos Serio-Silva
- Instituto de Ecología, A.C. Red de Biología y Conservación de Vertebrados, Xalapa, Veracruz, México
| | - Eria Alaide Rebollar
- Centro de Ciencias Genómicas, Universidad Nacional Autónoma de México, Cuernavaca, Morelos, México
| | - Alejandro Azaola-Espinosa
- Sistemas Biológicos, Laboratorio de Biotecnología, Universidad Autónoma Metropolitana-Xochimilco, Coyoacán, CDMX, México
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Jarquín-Díaz VH, Barbachano-Guerrero A, Maldonado-Rodríguez R, Vásquez-Aguilar AA, Aguilar-Faisal JL. First molecular evidence of Hepatozoon canis in domestic dogs and ticks in fragmented rainforest areas in Mexico. Vet Parasitol Reg Stud Reports 2016; 6:4-8. [PMID: 31014527 DOI: 10.1016/j.vprsr.2016.11.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Accepted: 11/18/2016] [Indexed: 11/19/2022]
Abstract
The tick-borne pathogens of the genus Hepatozoon affect domestic animals and wildlife; their prevalence has risen around the world in the past years. In Mexico there is not enough data available about their surveillance. This study aimed to detect the prevalence of Hepatozoon by PCR in domestic animals and ticks from a fragmented rainforest area from southeast Mexico and analyze the phylogeographic structure of the parasites detected. The total prevalence of H. canis in mammals was 9.7% (20/206; 95% Confidence limits: 6.0-14.6%), being dogs the species with the highest prevalence, of 63.3% (19/30; 95% Confidence limits: 43.9-80.1%). The phylogenetic analysis revealed that sequences from this study were closer to the sequence of H. canis of domestic origin, rather than from wild origin, but in an independent cluster. Haplotypes from our study were geographically restricted to Mexico and the closest haplotype was from Brazil. Ticks that resulted positive by PCR were identified as Amblyomma cajennense (A. mixtus) and Rhipicephalus turanicus. Under fragmented and disturbed conditions of habitat in Balancan, the presence of H. canis may represent a potential risk for other species of domestic and wildlife animals. To the knowledge of the authors, this study represents the first molecular finding of H. canis in Mexico in both domestic animals and ticks. This research lays the groundwork for further studies in order to elucidate the relationships between domestic hosts, wildlife and ticks and describe the life cycle of this parasite in the area.
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Affiliation(s)
- Víctor Hugo Jarquín-Díaz
- Laboratorio de Medicina de Conservación, Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón s/n, Miguel Hidalgo, Col. Casco de Santo Tomás, C.P. 11340, Ciudad de Mexico, D.F.; Laboratorio de Bioinformática y Biotecnología Genómica, Departamento de Bioquímica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Prolongación de Carpio y Plan de Ayala s/n, Miguel Hidalgo, Col. Casco de Santo Tomás, C. P. 11340, Ciudad de Mexico, D.F
| | - Arturo Barbachano-Guerrero
- Laboratorio de Medicina de Conservación, Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón s/n, Miguel Hidalgo, Col. Casco de Santo Tomás, C.P. 11340, Ciudad de Mexico, D.F
| | - Rogelio Maldonado-Rodríguez
- Laboratorio de Bioinformática y Biotecnología Genómica, Departamento de Bioquímica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Prolongación de Carpio y Plan de Ayala s/n, Miguel Hidalgo, Col. Casco de Santo Tomás, C. P. 11340, Ciudad de Mexico, D.F
| | - Antonio Acini Vásquez-Aguilar
- Laboratorio de Medicina de Conservación, Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón s/n, Miguel Hidalgo, Col. Casco de Santo Tomás, C.P. 11340, Ciudad de Mexico, D.F
| | - José Leopoldo Aguilar-Faisal
- Laboratorio de Medicina de Conservación, Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón s/n, Miguel Hidalgo, Col. Casco de Santo Tomás, C.P. 11340, Ciudad de Mexico, D.F..
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Ornelas JF, Gándara E, Vásquez-Aguilar AA, Ramírez-Barahona S, Ortiz-Rodriguez AE, González C, Mejía Saules MT, Ruiz-Sanchez E. A mistletoe tale: postglacial invasion of Psittacanthus schiedeanus (Loranthaceae) to Mesoamerican cloud forests revealed by molecular data and species distribution modeling. BMC Evol Biol 2016; 16:78. [PMID: 27071983 PMCID: PMC4830056 DOI: 10.1186/s12862-016-0648-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Accepted: 03/31/2016] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Ecological adaptation to host taxa is thought to result in mistletoe speciation via race formation. However, historical and ecological factors could also contribute to explain genetic structuring particularly when mistletoe host races are distributed allopatrically. Using sequence data from nuclear (ITS) and chloroplast (trnL-F) DNA, we investigate the genetic differentiation of 31 Psittacanthus schiedeanus (Loranthaceae) populations across the Mesoamerican species range. We conducted phylogenetic, population and spatial genetic analyses on 274 individuals of P. schiedeanus to gain insight of the evolutionary history of these populations. Species distribution modeling, isolation with migration and Bayesian inference methods were used to infer the evolutionary transition of mistletoe invasion, in which evolutionary scenarios were compared through posterior probabilities. RESULTS Our analyses revealed shallow levels of population structure with three genetic groups present across the sample area. Nine haplotypes were identified after sequencing the trnL-F intergenic spacer. These haplotypes showed phylogeographic structure, with three groups with restricted gene flow corresponding to the distribution of individuals/populations separated by habitat (cloud forest localities from San Luis Potosí to northwestern Oaxaca and Chiapas, localities with xeric vegetation in central Oaxaca, and localities with tropical deciduous forests in Chiapas), with post-glacial population expansions and potentially corresponding to post-glacial invasion types. Similarly, 44 ITS ribotypes suggest phylogeographic structure, despite the fact that most frequent ribotypes are widespread indicating effective nuclear gene flow via pollen. Gene flow estimates, a significant genetic signal of demographic expansion, and range shifts under past climatic conditions predicted by species distribution modeling suggest post-glacial invasion of P. schiedeanus mistletoes to cloud forests. However, Approximate Bayesian Computation (ABC) analyses strongly supported a scenario of simultaneous divergence among the three groups isolated recently. CONCLUSIONS Our results provide support for the predominant role of isolation and environmental factors in driving genetic differentiation of Mesoamerican parrot-flower mistletoes. The ABC results are consistent with a scenario of post-glacial mistletoe invasion, independent of host identity, and that habitat types recently isolated P. schiedeanus populations, accumulating slight phenotypic differences among genetic groups due to recent migration across habitats. Under this scenario, climatic fluctuations throughout the Pleistocene would have altered the distribution of suitable habitat for mistletoes throughout Mesoamerica leading to variation in population continuity and isolation. Our findings add to an understanding of the role of recent isolation and colonization in shaping cloud forest communities in the region.
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Affiliation(s)
- Juan Francisco Ornelas
- Departamento de Biología Evolutiva, Instituto de Ecología, A.C., Carretera antigua a Coatepec No. 351, El Haya, Xalapa, Veracruz, 91070, Mexico.
| | - Etelvina Gándara
- Departamento de Biología Evolutiva, Instituto de Ecología, A.C., Carretera antigua a Coatepec No. 351, El Haya, Xalapa, Veracruz, 91070, Mexico
- Department of Plant and Microbial Biology & The University and Jepson Herbaria, University of California, Berkeley, 431 Koshland Hall, Berkeley, CA, 94270, USA
| | - Antonio Acini Vásquez-Aguilar
- Departamento de Biología Evolutiva, Instituto de Ecología, A.C., Carretera antigua a Coatepec No. 351, El Haya, Xalapa, Veracruz, 91070, Mexico
| | - Santiago Ramírez-Barahona
- Departamento de Biología Evolutiva, Instituto de Ecología, A.C., Carretera antigua a Coatepec No. 351, El Haya, Xalapa, Veracruz, 91070, Mexico
| | - Andrés Ernesto Ortiz-Rodriguez
- Departamento de Biología Evolutiva, Instituto de Ecología, A.C., Carretera antigua a Coatepec No. 351, El Haya, Xalapa, Veracruz, 91070, Mexico
| | - Clementina González
- Departamento de Biología Evolutiva, Instituto de Ecología, A.C., Carretera antigua a Coatepec No. 351, El Haya, Xalapa, Veracruz, 91070, Mexico
- Cátedras CONACYT-Instituto de Investigaciones sobre los Recursos Naturales, Universidad Michoacana de San Nicolás de Hidalgo, Av. San Juanito Itzícuaro s/n, Col. Nueva Esperanza, Morelia, Michoacán, CP 58330, Mexico
| | - María Teresa Mejía Saules
- Departamento de Biología Evolutiva, Instituto de Ecología, A.C., Carretera antigua a Coatepec No. 351, El Haya, Xalapa, Veracruz, 91070, Mexico
| | - Eduardo Ruiz-Sanchez
- Centro Regional del Bajío, Instituto de Ecología, A.C., Avenida Lázaro Cárdenas 253, Pátzcuaro, Michoacán, 61600, Mexico
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