Potencial plástico de Cabralea canjerana subsp. polytricha (Adr. Juss.) Penn. (Meliaceae) e seu papel na formação de ecótipos em áreas de cerrado e vereda, Uberlândia, MG

The ecotype formation of Cabralea canjerana subsp. polytricha in areas of savanna and palm swamp in an ecological reserve in Uberlândia, MG, was studied, using a quantitative genetic model to measure phenotypic plasticity. Ecotypes were characterised by the height of the individuals, weight of fruits and seeds, number of viable seeds per fruit and synchronization of the flowering period. There is great genetic variability in important fitness characters of the subspecies. The genotypes respond phenotypically to the environmental heterogeneity produced by the savanna/palm swamp gradient in two of the three measured characters. The plastic responses were distinct among genotypes in both direction and intensity. Asynchrony of the flowering period and the action of seed dispersers may contribute to increase the divergences of the ecotypes in the study area.

• Publication year

  2000

• Venue

  Brazilian Journal of Botany

• Publication date

  2000-06-01

• Fields of study

  Biology, Environmental Science

• Identifiers
  DOI 10.1590/S0100-84042000000200007
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

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