Influência da paisagem e do clima sobre os padrões de diversidade genética de plantas do Cerrado

Abstract

Considering the landscape and climate variations that occur over the population is necessary to understand the process of natural selection. The objective of this study was to evaluate the influence of landscape and climate on the genetic diversity patterns of Cerrado plants. A sciometric survey was carried out using the databases “Scopus”, “Web of Science” and “Scielo” and the keywords: “Cerrado AND ssr” and “microsatellite molecular markers AND Cerrado”. between 1999 and 2018. Mixed generalized linear models were used to model the landscape, obtained through the Cerrado shape and climate variables obtained from BIOCLIM, according to the variation of genetic diversity among species. Quantitative analyzes were used to test central-peripheral patterns. There was no landscape influence on the genetic diversity of the Cerrado plants, but there was interference of the climatic factors on the expected heterozygosity which is influenced by the seasonality of precipitation and the warmest quarter precipitation. The heterozygosity observed by the average annual temperature, precipitation of the hottest quarter, average temperature of the driest quarter and precipitation seasonality. The isothermality fixation index and the annual average temperature. Copaifera langsdorffii, Eugenia dysenterica, Manihot esculenta and the Annona genus followed the center-periphery hypothesis, while Camponesia adamantium, Dripteryx alata, Hancornia genus, Qualea genus, Solanum genus and Handroanthus genus showed divergent data, suggesting occurrence. of inbreeding in central and peripheral populations.