GENETIC BASE OF CUBAN RICE VARIETIES RELEASED BETWEEN 1972 AND 1993

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Published: May 28, 2013
Keywords:
genetic inheritance, rice, Oryza sativa, plant breeding, genetic distance

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J. L. Fuentes
Centro de Aplicaciones Tecnológicas y Desarrollo Nuclear (CEADEN)

Abstract

The present work was aimed at studying of the genetic base of Cuban rice breeding program and the genetic relationships among Cuban rice varieties, released during 1972 to 1993. Results showed that the genetic base of this program was composed by 32 landraces, 18 of them contributing to genetic base of the cultivars during all this period, and thus, could be considered as the core group. The genetic base was partially coincident with other foreign rice programs: 45, 49 and 82 % of them also contributed to rice breeding genetic base in the United States, Colombia and Central America, respectively. A UPGMA dendrogram, based on pairwise genealogical distances, separated three varietal groups and two independent varieties, �??Perla de Cuba�?� and �??Caribe 1�?�. The genetic information is discussed as a means to assist traditional progeny analysis in the parental selection and to design strategies to widen the present genetic base by introducing new genetic sources.

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How to Cite
Fuentes, J. L. (2013). GENETIC BASE OF CUBAN RICE VARIETIES RELEASED BETWEEN 1972 AND 1993. Cultivos Tropicales, 24(2), 55–61. Retrieved from https://ediciones.inca.edu.cu/index.php/ediciones/article/view/595
Issue
Vol. 24 No. 2 (2003)
Section
Original Article

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