Resumen

MORILLO C, Ana Cruz; MORILLO, C, Yacenia  y  LEGUIZAMO, M, María Fernanda. Morphological and molecular characterization of Oxalis tuberosa Mol. in the department of Boyacá. Rev. colomb. biotecnol [online]. 2019, vol.21, n.1, pp.18-28. ISSN 0123-3475.  https://doi.org/10.15446/rev.colomb.biote.v21n1.57356.

Among the most important Andean tubers, after potato, is the ibia (Oxalis tuberosa Mol.) because it is a staple food for peasant communities. Boyacá in one of the departments of Colombia, where there is still tradition to grow and consume tubers like cubios, ullucus and rubas or ibias; however, they are threatened by genetic erosion. There are no studies on these plant genetic resources in Boyacá, therefore the goal of this research was to collect and morphological and molecularly characterize ibias in this department. Morphological analysis showed that the most discriminate characteristic were color aerial stems, pigmentation armpits, foliage color, flower color, color peduncle and pedicel, predominant color of the tuber surface, secondary color of the surface tuber, dominant and secondary color of the pulp, distribution of secondary pulp color and shape of tubers. The similarity analysis discriminate the materials in two groups according mainly to morphological characteristics such as color and flowering habit. The value of average heterozygosity for the total population was 0.39, which is considered high when compared with other studies of genetic diversity in ibias. The analysis of molecular variance and Fst (coefficient of genetic differentiation) show that existed a high genetic variability among the ibias evaluated which it should be maintained and exploited in future breeding programs of Andean tubers.

Palabras clave : Andean tubers; genetic diversity; microsatellites RAMs.

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