Artificial selection of Crescentia cujete

Artificial selection of <i>Crescentia cujete</i>

Artificial selec­tion of Crescentia cujete

Plant domest­ic­a­tion depends on human per­cep­tion of intraspe­cific vari­ation and oper­ates through man­age­ment prac­tices. Aguirre-Dugua et al. exam­ine the recog­ni­tion of vari­et­ies (one wild, three domest­ic­ated) of the gourd (cala­bash) tree Crescentia cujete by Maya people in Mexico in rela­tion to fruit mor­pho­logy and ongo­ing pro­cesses of human selec­tion. The res­ults show that Maya nomen­clature is related to a pref­er­ence for domest­ic­ated vari­et­ies with lar­ger, rounder and thicker fruits. Vegetative propaga­tion of pre­ferred vari­et­ies has main­tained a dif­fer­en­tial dis­tri­bu­tion of cpDNA hap­lo­types in vil­lages as com­pared to sym­patric wild pop­u­la­tions, although tol­er­ance of spon­tan­eous trees favours intro­gres­sion from wild populations.

Annals of Botany Office.

The Annals of Botany Office is based at the University of Leicester.

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