Morphological and Molecular Characterization of Chilean Runner Bean (Phaseolus coccineus L.) Genotypes

Arriagada O. , , , ,; Schwember A.R.; Greve M.J.; Urban M. O.; Cabeza R. A.; Carrasco B.

Keywords: morphology, genetic diversity, issr markers, runner bean, Phaseolus spp.


The runner bean is the third most economically important Phaseolus species, which is cultivated on small-scale agriculture for the production of immature pods or to obtain dry seeds. However, despite the economic importance and agronomic potential of this species, the runner bean has been little studied from the genetic standpoint. Therefore, the main objective of this study was to characterize ten selected lines of runner bean obtained from Central (Santiago) and Southern (Valdivia and Villarica) Chile based on morphological and agronomic traits. In addition, the genetic variability of these lines was determined using 12 Inter-Simple Sequence Repeat (ISSR) markers to evaluate the potential of this germplasm for breeding and commercial purposes. As a result, the lines from Central Chile were characterized, and had a higher number of pods per plant compared to the Southern lines, although the size and weight of their seeds were lower. Moreover, a low level of genetic diversity (He = 0.251) was encountered in this population. Finally, this is one of the first studies that generate relevant and novel information on the morphological, agronomic and genetic characterization of the P. coccineus germplasm present in Chile

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Volumen: 10
Fecha de publicación: 2021
Página de inicio: 1688
Página final: 1702
Idioma: Inglés
Financiamiento/Sponsor: : This research was funded by the Centro de Estudios en Alimentos Procesados (CEAP), ANID Programa Regional R20F0001 and R19A10001, Talca, Chile