TY - JOUR
T1 - Genetic analysis and random amplified polymorphic DNA markers associated with cooking time in common bean
AU - Jacinto-Hernandez, Carmen
AU - Azpiroz-Rivero, Susana
AU - Acosta-Gallegos, Jorge A.
AU - Hernandez-Sanchez, Humberto
AU - Bernal-Lugo, Irma
PY - 2003
Y1 - 2003
N2 - Cooking time is an important trait in the breeding of common beans (Phaseolus vulgaris L.), especially in Mexico where 96% of beans consumed are prepared in the household. Because of the characteristics of the cooking time trait, a method of indirect selection would increase selection efficiency. The objective of this study was to identify random amplified polymorphic DNA (RAPD) markers associated with the trait and estimate genetic parameters of cooking time. For that purpose, 104 recombinant inbred lines (RILs), derived from contrasting cooking time bean cultivars were evaluated for three consecutive generations (F5 to F8). In each generation, cooking time was determined and plants in the F7 generation were genotyped. One marker was associated with cooking time. The polymorphic UNAM-16 of 310 base pairs (bp) explained 23% of the variation in cooking time of the lines studied. Narrow sense heritability (h2) was estimated for cooking time, as was the number of genes involved in the trait. A high value of h2 (0.74) was estimated for cooking time. Also, it was estimated that two genes control the cooking time trait.
AB - Cooking time is an important trait in the breeding of common beans (Phaseolus vulgaris L.), especially in Mexico where 96% of beans consumed are prepared in the household. Because of the characteristics of the cooking time trait, a method of indirect selection would increase selection efficiency. The objective of this study was to identify random amplified polymorphic DNA (RAPD) markers associated with the trait and estimate genetic parameters of cooking time. For that purpose, 104 recombinant inbred lines (RILs), derived from contrasting cooking time bean cultivars were evaluated for three consecutive generations (F5 to F8). In each generation, cooking time was determined and plants in the F7 generation were genotyped. One marker was associated with cooking time. The polymorphic UNAM-16 of 310 base pairs (bp) explained 23% of the variation in cooking time of the lines studied. Narrow sense heritability (h2) was estimated for cooking time, as was the number of genes involved in the trait. A high value of h2 (0.74) was estimated for cooking time. Also, it was estimated that two genes control the cooking time trait.
UR - http://www.scopus.com/inward/record.url?scp=0037239790&partnerID=8YFLogxK
U2 - 10.2135/cropsci2003.3290
DO - 10.2135/cropsci2003.3290
M3 - Artículo
SN - 0011-183X
VL - 43
SP - 329
EP - 332
JO - Crop Science
JF - Crop Science
IS - 1
ER -