Biogeographical Review of Asteraceae in the Espinhaço Mountain Range, Brazil

Campos, L. de S.; Moro, Marcelo Freire; Funk, Vicki A.; Roque, Nádia

doi:10.1007/s12229-019-09216-9

Cited by 21 publications

(13 citation statements)

References 43 publications

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“…Similar biogeographic patterns were also pointed out by several other studies using floristic and faunistic composition, as well as endemicity indexes (e.g. Bitencourt & Rapini, 2013;Bünger et al, 2014;Campos et al, 2019;Chaves et al, 2015) and phylogenetic histories (e.g. Chaves et al, 2019;Ribeiro et al, 2014).…”

Section: Phylogeography Of Vriesea Oligantha: Insights From Micro To Macroevolution In the Espinhaço Rangesupporting

confidence: 85%

Underlying microevolutionary processes parallel macroevolutionary patterns in ancient neotropical mountains

Dantas-Queiroz

Cacossi

Leal

et al. 2021

Journal of Biogeography

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Aim: Ancient climatic fluctuations are invoked as the main driving force that generates the astonishing biodiversity in ancient mountains. As a result, endemism and spatial turnover are usually high and few species are widespread amongst entire mountain ranges, precluding the understanding of origins of macroevolutionary patterns. Here, we used a species endemic to, but widespread in, one of the most species-rich ancient mountains in the globe to test how environmental changes acted on and how their macroevolutionary patterns were shaped.Location: Espinhaço Range, Eastern Brazil. Taxon: Vriesea oligantha species complex (Bromeliaceae). Methods:We compiled data for plastidial regions and nuclear microsatellites to assess genetic diversity, population structure, migration rates and phylogenetic relationships. Using temperature and precipitation variables, we modelled suitable areas for the present and the past, estimating corridors between isolated populations. We also implemented Bayesian demographic analyses to estimate ancient populations dynamics. Finally, we tested if population structure is driven by isolation by environment or by distance using a Bayesian modelling approach.Results: Our results showed that the intraspecific divergence events of V. oligantha are older than those associated with the latest Pleistocene climatic oscillations, supporting the view that Quaternary climatic fluctuations are key components for understanding its population differentiation processes. Species distribution modelling estimated corridors between populations in the past, as also shown in the demographic analyses, depicting a major spatial reorganization during colder climates.Besides, the high genetic structure estimated results from both models of isolation by distance and by environment. Main conclusions: V. oligantha is a remarkable model to test the effects of climatic oscillations over the biological community, since this species originated in the early-Pleistocene, prevailing over several cycles of climatic fluctuations until today. The estimated demographic dynamics of V. oligantha agrees with the species-pump mechanism, suggesting it as the main cause of speciation within the Espinhaço Range. Moreover, the phylogeographic patterns of V. oligantha reflect previously recognised | 2313 DANTAS-QUEIROZ ET Al.

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Section: Phylogeography Of Vriesea Oligantha: Insights From Micro To Macroevolution In the Espinhaço Rangesupporting

confidence: 85%

Underlying microevolutionary processes parallel macroevolutionary patterns in ancient neotropical mountains

Dantas-Queiroz

Cacossi

Leal

et al. 2021

Journal of Biogeography

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“…However, the hosts of T. bicolor have smaller geographic ranges than those of T. incompleta. Most species of Minasia and Lychnophora, the main hosts of T. bicolor, have micro-endemic distributions in the Espinhac ßo Range (Collevatti et al, 2009;Jesus et al, 2009;Campos et al, 2019;Loeuille et al, 2019). Tomoplagia bicolor females must seek and select host plants for oviposition among potential hosts co-occurring in each locality.…”

Section: Discussionmentioning

confidence: 99%

“…The range is divided into two segments by a discontinuity in northern Minas Gerais, with considerable diversity of climate patterns. Plants in the Espinhac ßo vary from endemic and micro-endemic to cosmopolitan species (Collevatti et al, 2009;Silveira et al, 2016;Campos et al, 2019). Several studies relate the restricted and disjunct distribution of many Espinhac ßo plants to cyclic climatic changes in and after the Pleistocene (Behling, 1997(Behling, , 1998(Behling, , 2002Ledru et al, 1998Ledru et al, , 2005Behling & Negrelle, 2001).…”

Section: Introductionmentioning

confidence: 99%

Host specialization, genetic variability, and differentiation in three species of Tomoplagia from Brazilian rupestrian grasslands

Leal

Souza

Silva-Brandão

et al. 2021

Entomologia Exp Applicata

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In this study, the geographic and host plant-associated genetic structure of Tomoplagia spp. (Diptera: Tephritidae) was investigated. The study was developed in the rupestrian montane grasslands of the Espinhac ßo Mountain Range, Brazil, where these flies' larvae develop within flower heads of Asteraceae. The three species of Tomoplagia investigated have different host spans within the subtribe Vernoniinae: one is strictly monophagous (Tomoplagia grandis Prado, Norrbom & Lewinsohn) and two are oligophagous [Tomoplagia incompleta (Williston) and Tomoplagia bicolor Prado, Norrbom & Lewinsohn]. The genetic variability and differentiation throughout their geographic distribution were investigated at the local scale (sympatric, between different host species in the same locality) and the regional scale (allopatric, on the same or different host species in different localities). Allele richness was greater for populations of the two oligophagous species. Moreover, population genetic structure was low in all species both on the local and regional scales, and the attribution of individuals of the three species to different genetic groups was not strongly associated with either locality or host plant. These results indicate the absence of simple geographic and host-associated genetic structure in these specialized herbivores, suggesting that females of T. bicolor and T. incompleta have low host philopatry, using various host species indiscriminately within their distribution range. Therefore, the use of host plants by fruit flies of the genus Tomoplagia is a plastic character that can shift temporally and spatially among phylogenetically related and chemically similar plants. Contrary to expectations, given the specialized and intimate nature of their host association, the studied Tomoplagia species showed no clear host-associated genetic differentiation; instead, genetic variation presents a mosaic pattern across hosts and localities.

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“…Most species of Microlicieae are endemic to the campo rupestre in Brazil, where about 209 occur in the Espinhaço Range mountains (Flora do Brasil 2020). The Espinhaço Range extends for 1,200 km through the states of Bahia and Minas Gerais (Silveira et al 2016;Campos et al 2019). Its northern portion in Minas Gerais encompasses the municipalities of Monte Azul, Itacambira, Grão-Mogol, and Montes Claros, and is considered an area with high rates of endemism (Echternacht et al 2011;Colli-Silva et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Microlicia woodgyeriana (Microlicieae, Melastomataceae), a critically endangered new species from campo rupestre in Minas Gerais, Brazil

et al. 2021

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Biogeographical Review of Asteraceae in the Espinhaço Mountain Range, Brazil

Cited by 21 publications

References 43 publications

Underlying microevolutionary processes parallel macroevolutionary patterns in ancient neotropical mountains

Underlying microevolutionary processes parallel macroevolutionary patterns in ancient neotropical mountains

Host specialization, genetic variability, and differentiation in three species of Tomoplagia from Brazilian rupestrian grasslands

Microlicia woodgyeriana (Microlicieae, Melastomataceae), a critically endangered new species from campo rupestre in Minas Gerais, Brazil

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