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Chemical similarity among domesticated and wild genotypes of peanut based on n-alkanes profiles

Similaridade química entre genótipos domesticados e selvagens de amendoim baseada no perfil de n-alcanos

The objective of this work was to analyze the epicuticular n-alkane profile of domesticated and wild peanut genotypes. Foliar epicuticular n-alkanes of four Arachis hypogaea genotypes and two wild species - A. monticola and A. stenosperma - were analyzed by gas chromatography. Chemical relationships between them were evaluated using the Dice coefficient and UPGMA method. Two clusters were formed: one with four A. hypogaea genotypes and the other with the two wild species. There is more similarity between the BR1 and LIGO-PE06 genotypes and between the BRS 151 L-7 and BRS Havana genotypes.

Arachis hypogaea; Arachis monticola; Arachis stenosperma; epicuticular wax; hydric stress; phenetics


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