02403naa a2200301 a 450000100080000000500110000800800410001910000210006024501620008126000090024352014640025265000120171665000130172865000260174165300270176765300130179465300180180765300220182565300230184765300230187070000210189370000190191470000220193370000220195570000200197770000180199777300860201520305842015-12-04       2015    bl uuuu     u00u1 u    #d1 aVIEIRA, F. de A.  aHolocene southward expansion in seasonally dry tropical forests in South Americabphylogeography of Ficus bonijesulapensis (Moraceae).h[electronic resource]  c2015  aWe conducted a phylogeographical and niche modelling study of the tree Ficus bonijesulapensis, endemic to Brazilian seasonally dry tropical forests (SDTFs), in order to evaluate the effects of Quaternary climatic fluctuations on population dynamics. The trnQ?5?rps16 region of plastid DNA was sequenced from 15 populations. Three phylogeographical groups were identified by the median-joining algorithm network and spatial analysis of molecular variance (SAMOVA) (FCT = 0.591): a central-west, a central-east and a scattered group. The central groups had higher total haplotype and nucleotide diversities than the scattered group. Ecological niche modelling suggested that, since the Last Interglacial (130 kyr BP), the central and north regions have been relatively stable, whereas the southern region of the species distribution has been less stable. The phylogeographical groups showed concordance with the floristic units described for SDTFs. The low genetic diversity, unimodal mismatch distribution and unfavourable climatic conditions in the southern region suggest a recent southward expansion of the range of the species during the Holocene, supporting the hypothesis of the southward expansion of SDTFs during this period. The central and northern regions of the current distribution of F. bonijesulapensis, which are consistent with arboreal caatinga and rock outcrop floristic units, were potential refugia during Quaternary climatic fluctuations.  aÁrvore  aCaatinga  aPopulação de planta  aFicus bonijesulapensis  aFig tree  aFilogeografia  aHabitat stability  aLimestone outcrops  aQuaternary history1 aNOVAES, R. M. L.1 aFAJARDO, C. G.1 aSANTOS, R. M. dos1 aALMEIDA, H. de S.1 aCARVALHO, D. de1 aLOVATO, M. B.  tBotanical Journal of the Linnean Society, Londongv. 177, n. 2, p. 189-201, 2015.