Population genetic structure of the Atlantic Forest endemic Conopophaga lineata (Passeriformes: Conopophagidae) reveals a contact zone in the Atlantic Forest

Dantas, Giovana; Sari, Eloisa H. R.; Cabanne, Gustavo S.; Pessoa, Rodrigo Oliveira; Marini, Miguel Ângelo; Miyaki, Cristina Yumi; Santos, Fabrício R.

doi:10.1007/s10336-014-1106-0

Cited by 18 publications

(16 citation statements)

References 52 publications

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“…Therefore, demographic changes such as bottlenecks or recent population expansions are expected in forest species, which were found in some phylogeographical studies conducted in this area (e.g. Turchetto‐Zolet et al ., ; Valdez & D'Elía, ; Thode et al ., ; Dantas et al ., ). Despite this expectation, our analyses only identified population growth in the eastern part of the distribution of A. calyculata , whereas the western populations seem to have remained demographically stable.…”

Section: Discussionmentioning

confidence: 97%

“…Another common pattern found is a decrease in the levels of genetic diversity and signals of recent demographic expansion in populations located further south of the Doce river, which have been associated with the Pleistocene climatic oscillations (e.g. Palma‐Silva et al ., ; Ribeiro et al ., ; Turchetto‐Zolet et al ., ; Thode et al ., ; Dantas et al ., ).…”

Section: Introductionmentioning

confidence: 97%

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East-to-west genetic structure in populations ofAechmea calyculata(Bromeliaceae) from the southern Atlantic rainforest of Brazil

et al. 2016

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The Brazilian Atlantic rainforest is the second largest tropical humid forest in South America. Most phylogeographical studies conducted so far have focused on taxa with a north‐to‐south pattern of geographical distribution in the Atlantic rainforest. In the present study, we focused on Aechmea calyculata, a species with an east‐to‐west pattern of occurrence in the southern portion of the Atlantic rainforest. We analysed the genetic diversity and structure of A. calyculata using 12 nuclear microsatellites (simple sequence repeats, SSRs), two intergenic plastid DNA spacers and the nuclear gene phytochrome C (phyC). Results revealed high genetic structure across the distribution of A. calyculata, especially between populations in the western and eastern regions. However, no apparent geographical barrier isolates these two groups today, suggesting a historical process of vicariance. This pattern was probably associated with vegetation shifts that occurred during the Pleistocene, with grasslands acting as a barrier to gene flow. Genetic diversity was evenly distributed among A. calyculata populations with SSR and plastid DNA and concentrated in the eastern region when phyC was considered. Signs of demographic population growth in the eastern group were detected for A. calyculata. Our results support the findings of other studies, which also found populations with high genetic diversity occurring in the southern portion of the Atlantic rainforest.

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Section: Discussionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 97%

East-to-west genetic structure in populations ofAechmea calyculata(Bromeliaceae) from the southern Atlantic rainforest of Brazil

et al. 2016

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“…Tinguá) and Serra da Mantiqueira (e.g. Itatiaia) might have happened; such dynamics are known to have favoured speciation in groups as diverse as flatworms [ 53 ], harvestmen [ 54 ], snakes [ 55 ], frogs [ 56 – 60 ], primates [ 61 – 63 ], rodents [ 64 ], birds [ 65 – 67 ] and several malaria vectors [ 68 ]. Under this scenario, the Bocaina population, which is located midway between the coastal Serra do Mar and Serra da Mantiqueira populations, could be a zone of secondary contact between the incipient species, which typically is accompanied by hybridization and partial introgression [ 69 , 70 ].…”

Section: Discussionmentioning

confidence: 99%

Cryptic diversity in an Atlantic Forest malaria vector from the mountains of South-East Brazil

et al. 2018

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BackgroundAnopheles (Kerteszia) cruzii is the primary vector of human and simian malarias in Brazilian regions covered by the Atlantic Rainforest. Previous studies found that An. cruzii presents high levels of behavioural, chromosomal and molecular polymorphisms, which led to the hypothesis that it may be a complex of cryptic species. Here, An. cruzii specimens were collected in five sites in South-East Brazil located at different altitudes on the inner and coastal slopes of two mountain ranges covered by Atlantic Rainforest, known as Serra do Mar and Serra da Mantiqueria. Partial sequences for two genes (Clock and cpr) were generated and compared with previously published sequences from Florianópolis (southern Brazil). Genetic diversity was analysed with estimates of population structure (FST) and haplotype phylogenetic trees in order to understand how many species of the complex may occur in this biome and how populations across the species distribution are related.ResultsThe sequences from specimens collected at sites located on the lower coastal slopes of Serra do Mar (Guapimirim, Tinguá and Sana) clustered together in the phylogenetic analysis, while the major haplotypes from sites located on higher altitude and at the continental side of the same mountains (Bocaina) clustered with those from Serra da Mantiqueira (Itatiaia), an inner mountain range. These two An. cruzii lineages showed statistically significant genetic differentiation and fixed characters, and have high FST values typical of between species comparisons. Finally, in Bocaina, where the two lineages occur in sympatry, we found deviations from Hardy-Weinberg equilibrium due to a deficit of heterozygotes, indicating partial reproductive isolation. These results strongly suggest that at least two distinct lineages of An. cruzii (provisorily named “Group 1” and “Group 2”) occur in the mountains of South-East Brazil.ConclusionsAt least two genetically distinct An. cruzii lineages occur in the Atlantic Forest covered mountains of South-East Brazil. The co-occurrence of distinct lineages of An. cruzii (possibly incipient species) in those mountains is an interesting biological phenomenon and may have important implications for malaria prevalence, Plasmodium transmission dynamics and control.Electronic supplementary materialThe online version of this article (10.1186/s13071-018-2615-0) contains supplementary material, which is available to authorized users.

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“…For distinct Brazilian biomes, this approach has been explored in order to indicate potential long‐term climate stability areas (refugia) during Quaternary climatic fluctuations (Bueno et al., ; Carnaval, Hickerson, Haddad, Rodrigues, & Moritz, ; Carnaval & Moritz, ; Dantas et al., ; Martins, ; Werneck, Costa, Colli, Prado, & Sites, ; Werneck, Nogueira, Colli, Sites, & Costa, ). Despite gaps in the knowledge about palaeoenvironments in Brazil, it is known that complex climatic variations during the Quaternary shaped a large portion of the current landscapes in the country (Behling, ; Neto, Galvani, & Vieira, ; Oliveira et al., ).…”

Section: Introductionmentioning

confidence: 99%

Do plant populations on distinct inselbergs talk to each other? A case study of genetic connectivity of a bromeliad species in an Ocbil landscape

Hmeljevski

Nazareno

Bueno

et al. 2017

Ecology and Evolution

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Here, we explore the historical and contemporaneous patterns of connectivity among Encholirium horridum populations located on granitic inselbergs in an Ocbil landscape within the Brazilian Atlantic Forest, using both nuclear and chloroplast microsatellite markers. Beyond to assess the E. horridum population genetic structure, we built species distribution models across four periods (current conditions, mid‐Holocene, Last Glacial Maximum [LGM], and Last Interglacial) and inferred putative dispersal corridors using a least‐cost path analysis to elucidate biogeographic patterns. Overall, high and significant genetic divergence was estimated among populations for both nuclear and plastid DNA (ΦST (n) = 0.463 and ΦST (plastid) = 0.961, respectively, p < .001). For nuclear genome, almost total absence of genetic admixture among populations and very low migration rates were evident, corroborating with the very low estimates of immigration and emigration rates observed among E. horridum populations. Based on the cpDNA results, putative dispersal routes in Sugar Loaf Land across cycles of climatic fluctuations in the Quaternary period revealed that the populations’ connectivity changed little during those events. Genetic analyses highlighted the low genetic connectivity and long‐term persistence of populations, and the founder effect and genetic drift seemed to have been very important processes that shaped the current diversity and genetic structure observed in both genomes. The genetic singularity of each population clearly shows the need for in situ conservation of all of them.

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Population genetic structure of the Atlantic Forest endemic Conopophaga lineata (Passeriformes: Conopophagidae) reveals a contact zone in the Atlantic Forest

Cited by 18 publications

References 52 publications

East-to-west genetic structure in populations ofAechmea calyculata(Bromeliaceae) from the southern Atlantic rainforest of Brazil

East-to-west genetic structure in populations ofAechmea calyculata(Bromeliaceae) from the southern Atlantic rainforest of Brazil

Cryptic diversity in an Atlantic Forest malaria vector from the mountains of South-East Brazil

Do plant populations on distinct inselbergs talk to each other? A case study of genetic connectivity of a bromeliad species in an Ocbil landscape

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