Almirall Malivern, Antonio Rafael

Casañas Artigas, Francesc

Ferreira, Juan José

Pérez-Vega, Elena

Romero del Castillo Shelly, Mª del Rosario

English

UPCommons

Sensory evaluation of near isogenic lines derived from the Fabada market class A25 line

Romero del Castillo Shelly, Ma. del Rosario

UPCommons. Portal del coneixement obert de la UPC

SENSORY EVALUATION OF NEAR ISOGENIC LINES DERIVEDFROM THE FABADAMARKET CLASSA25 LINERoser Romero del Castillo1, Antoni Almirall1, Elena Pérez-Vega2, Juan José Ferreira2, Francesc Casañas11 Departament d’Enginyeria Agroalimentària i Biotecnologia. UPC. ESAB. Campus del Baix Llobregat.Castelldefels, Spain.2 SERIDA. Villaviciosa., Asturias, Spain.The sensory value of dry beans (Phaseolus vulgaris L.) is one of the traits that mostinfluence consumer’s choices. It is often argued that the process of genetic improvementmight reduce the sensory value of dry beans through negative genetic correlations amongtraits or through the remnants of the donor genome that are interspersed with the recipientgenome through backcrossing. However, there are no experimental data to document thesetheoretical changes.Since 1990, breeding programs have been underway in Asturias to improve the fabadacommercial type (very large (100g/100 seeds) white oblong seeds) by incorporating genesto improve resistance to anthracnose (genes Co-2 and Co-9), BCMV (gene I), BCMNV(gene bc-3), and to modify the architecture of the plant (gene fin). Near isogenic lines(NILs) obtained from the A25 line, derived from individual selection in the fabada-typecommercial variety Andecha, are currently available. Lines A2806 (Co-2+I+bc-3) andA2418 (I+bc-3) were obtained by backcrossing with A25 as the recurrent parent. Thecharacteristic indeterminate growth pattern of the fabada type was modified by the crossV203 x A25 to obtain the determinate-growth Xana line. Later, genes that broughtresistance to anthracnose were incorporated into Xana by backcrossing, to obtain the lineX1319 that contains the gene Co-9 and the line X1358 that contains the gene Co-2.To identify possible differences in the sensory quality of these NILs, line A25 and thelines derived from it A2806, A2418, Xana, X1319, and X1358 were cultivated in twolocations (Argüelles and Villaviciosa, Asturias, northern Spain). The sensory characteristicsof the seeds harvested were evaluated by a trained panel. Significant differences betweenthe two locations were detected for ‘roughness of the seed coat surface’, ‘seed coatperception’, and ‘mealiness’. On the other hand, no differences were found in the trait‘flavor’. Only the trait ‘mealiness’ had a significant location x variety interaction.Xana and its derivative NILs were different from A25 and its derivative NILs in thetrait “roughness of the seed coat”. No differences in the trait ‘seed coat perception’ wereobserved between Xana and A25; however, the seed coats of lines X1319 and X1358derived from Xana were more perceptible than the rest. Xana was less mealy than theother lines, all of which fell into a single group of significance. Finally, lines X1319,A2806, and A2418 had a less intense flavor than A25.The results indicate that there are sensory differences in the NILs derived from thebreeding program, although these differences do not necessarily result in worse quality.The changes identified may be due to remnants from the donors, recombination, epitasisor pleiotropy.PHASEOMICS VI Meeting67ReferencesFerreira JJ, EP Vega, A Campa. 2007. Nuevas variedades de judía tipo Faba Granja desarrolladas en elSERIDA: resultados de las evaluaciones morfológicas, agronómicas y de calidad SERIDA KRKEdicionesRomero del Castillo, R., Valero, J., Casañas, F. and Costell, E. 2008. Training, validation andmaintenance of a panel to evaluate the texture of dry beans (Phaseolus vulgaris L.). Journal of SensoryStudies. 23, 303-319.Actas de la Asociación Española de Leguminosas (Spanish Association for Legumes)68

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Sensory evaluation of near isogenic lines derived from the Fabada market class A25 line

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