Pleistocene radiation of coastal species of Pilosocereus (Cactaceae) in eastern Brazil

Menezes, Marcelo Oliveira Teles de; Zappi, Daniela C.; Moraes, Evandro M.; Franco, Fernando Faria; Taylor, Nigel; Costa, Itayguara Ribeiro da; Loiola, Maria Iracema Bezerra

doi:10.1016/j.jaridenv.2016.08.006

Cited by 19 publications

(20 citation statements)

References 54 publications

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“…Despite this area being near to the delta of the Jequitinhonha River, which has been proposed as a riverine barrier for many BAF groups, including cacti from Pilosocereus arrabidae (Lem.) Byles & Rowley group (Menezes et al., ), the FNI group includes locations on both sides of this river (the S94 location at south and the remaining at north) suggesting that Jequitinhonha river has, at least nowadays, limited impact as barrier to gene flow in C. fernambucensis subsp. fernambucensis .…”

Section: Discussionmentioning

confidence: 99%

“…To conjecture about an alternative hypothesis to explain the disjunction observed in our target species in southern Bahia, it is important to observe that this region has a unique flora (Fernandes & de Queiroz, ). Further, it is highlighted in several biogeographic studies as a place of disjunction (Cazé et al., ; Menezes et al., ; Pinheiro et al., ) or secondary contact (Carnaval, Hickerson, Haddad, Rodrigues, & Moritz, ; Franco & Manfrin, ; Pellegrino, Rodrigues, Harris, Yonenaga‐Yassuda, & Sites, ). As these studies include different organisms with distinct dispersal capacities, such as flies (Franco & Manfrin, ), amphibians (Carnaval et al., ), lizards (Pellegrino et al., ), and plants (Cazé et al., ; Pinheiro et al., ), it is reasonable that asynchrony and recurrent events such as the climatic Pleistocene oscillations could explain some of these empirical observations.…”

Section: Discussionmentioning

confidence: 99%

“…sericifer due to its more fragmented range in comparison with C. fernambucensis subsp. fernambucensis ; (iii) based on previous phylogeographic data from co‐occurring restinga species of cactus (Menezes et al., ) and cactophilic flies (Franco & Manfrin, ), we expect to find population fragmentation along restinga forest; and finally, (iv) based on Pleistocene Refuges Hypothesis (PRH), it is expected that paleoclimatic Pleistocene oscillations should have influenced the demographic dynamics of our focal group in the past, likely promoting range expansion and higher genetic connectivity during glacial periods and, consequently, shaping the present‐day patterns of geographic distribution and population structure.…”

Section: Introductionmentioning

confidence: 88%

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The xeric side of the Brazilian Atlantic Forest: The forces shaping phylogeographic structure of cacti

Franco

Jojima

Perez

et al. 2017

Ecology and Evolution

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In order to investigate biogeographic influences on xeric biota in the Brazilian Atlantic Forest (BAF), a biodiversity hotspot, we used a monophyletic group including three cactus taxa as a model to perform a phylogeographic study: Cereus fernambucensis subsp. fernambucensis, C. fernambucensis subsp. sericifer, and C. insularis. These cacti are allopatric and grow in xeric habitats along BAF, including isolated granite and gneiss rock outcrops (Inselbergs), sand dune vegetation (Restinga forest), and the rocky shore of an oceanic archipelago (islands of Fernando de Noronha). The nucleotide information from nuclear gene phytochrome C and plastid intergenic spacer trnS‐trnG was used to perform different approaches and statistical analyses, comprising population structure, demographic changes, phylogenetic relationships, and biogeographic reconstruction in both spatial and temporal scales. We recovered four allopatric population groups with highly supported branches in the phylogenetic tree with divergence initiated in the middle Pleistocene: southern distribution of C. fernambucensis subsp. fernambucensis, northern distribution of C. fernambucensis subsp. fernambucensis together with C. insularis, southern distribution of C. fernambucensis subsp. sericifer, and northern distribution of C. fernambucensis subsp. sericifer. Further, the results suggest that genetic diversity of population groups was strongly shaped by an initial colonization event from south to north followed by fragmentation. The phylogenetic pattern found for C. insularis is plausible with peripatric speciation in the archipelago of Fernando de Noronha. To explain the phylogeographic patterns, the putative effects of both climatic and sea level changes as well as neotectonic activity during the Pleistocene are discussed.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 88%

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The xeric side of the Brazilian Atlantic Forest: The forces shaping phylogeographic structure of cacti

Franco

Jojima

Perez

et al. 2017

Ecology and Evolution

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“…The current semiarid conditions only established within the last 4,500 years [ 33 ]. Such conditions still promote evolutionary radiations in xeric plant lineages [ 36 ], the range expansion of dry forest species from xeric refugia [ 29 , 30 , 32 ], and the formation of forest refugia in wetter mountain ranges [ 35 ]. Herein, we refer to the historical rationale for regional floristic patterns as the Historical Stability Hypothesis.…”

Section: Introductionmentioning

confidence: 99%

Aridity drives plant biogeographical sub regions in the Caatinga, the largest tropical dry forest and woodland block in South America

2018

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Our aims were to quantify and map the plant sub regions of the the Caatinga, that covers 844,453 km2 and is the largest block of seasonally dry forest in South America. We performed spatial analyses of the largest dataset of woody plant distributions in this region assembled to date (of 2,666 shrub and tree species; 260 localities), compared these distributions with the current phytogeographic regionalizations, and investigated the potential environmental drivers of the floristic patterns in these sub regions. Phytogeographical regions were identified using quantitative analyses of species turnover calculated as Simpson dissimilarity index. We applied an interpolation method to map NMDS axes of compositional variation over the entire extent of the Caatinga, and then classified the compositional dissimilarity according to the number of biogeographical sub regions identified a priori using k-means analysis. We used multinomial logistic regression models to investigate the influence of contemporary climatic productivity, topographic complexity, soil characteristics, climate stability since the last glacial maximum, and the human footprint in explaining the identified sub regions. We identified nine spatially cohesive biogeographical sub regions. Current productivity, as indicated by an aridity index, was the only explanatory variable retained in the best model, explaining nearly half of the floristic variability between sub regions. The highest rates of endemism within the Caatinga were in the Core and Periphery Chapada Diamantina sub regions. Our findings suggest that the topographic complexity, soil variation, and human footprint in the Caatinga act on woody plant distributions at local scales and not as determinants of broad floristic patterns. The lack of effect of climatic stability since the last glacial maximum probably results from the fact that a single measure of climatic stability does not adequately capture the highly dynamic climatic shifts the region suffered during the Pleistocene. There was limited overlap between our results and previous Caatinga classifications.

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“…(3) caule com pigmentos fotossintéticos e cutícula espessa na epiderme; (4) produção de tricomas nas raízes e, (5) tecidos que permitem a estocagem de líquidos (NYFFELER, 2002;ARAKAKI et al 2011). As hipóteses e as características apresentadas acima, tornam os táxons da família Cactaceae interessantes modelos biológicos tanto para estudos de diversificação rápida e recente quanto para estudos que investiguem mudanças climáticas do Quaternários sobre a biota Neotropical (MORAES et al 2005;MAJURE et al 2012;BONATELLI et al 2014;MENEZES et al 2016, PEREZ et al 2016a). (C. stenogonus, C. bicolor, C. hildmannianus, C. jamacaru, C. hexagonus, C. pierre-braunianus, C. trigonodendron, C. fernambucensis, C. insularis, C. hankeanus, C. cochabambensis, C. vargasianus, C. lanosus, C. lamprospermus) ocorrendo na maioria dos biomas sul-americanos, tendo no Brasil sua distribuição associada a ambientes de Caatinga, Cerrado, Mata Atlântica, Pampa e Pantanal.…”

Section: A Família Cactaceaeunclassified

Dados filogenômicos para inferência de relações evolutivas entre espécies do gênero Cereus Mill. (Cactaceae, Cereeae)

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Pleistocene radiation of coastal species of Pilosocereus (Cactaceae) in eastern Brazil

Cited by 19 publications

References 54 publications

The xeric side of the Brazilian Atlantic Forest: The forces shaping phylogeographic structure of cacti

The xeric side of the Brazilian Atlantic Forest: The forces shaping phylogeographic structure of cacti

Aridity drives plant biogeographical sub regions in the Caatinga, the largest tropical dry forest and woodland block in South America

Dados filogenômicos para inferência de relações evolutivas entre espécies do gênero Cereus Mill. (Cactaceae, Cereeae)

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