Selection of common bean parents and segregating populations targeting fusarium wilt resistance and grain yield

Abstract

The present work aimed to select populations for the breeding of common bean targeting fusarium wilt resistance and grain yield. Twelve carioca bean lines, which mainly differ in fusarium wilt resistance and grain yield, were crossed in a 6x6 partial diallel scheme. The parents and their 36 F1’s hybrids were evaluated for fusarium wilt severity caused by FOP isolate UFV 01 (FWS), and grain yield (YIELD). 34 F4’s populations, 12 parents and three other lines were also evaluated for grain yield per plant. The data of F1's parents and hybrids were submitted to diallel analysis. Using the grain yield data per plant, the potential of the 34 F4’s populations was predicted by the Jinks and Pooni method (1976). In the diallel analysis, BRSMG Talismã, CVIII 8511, BRS Pérola, VC 25 and VC 13 stood out in terms of the frequency of favorable alleles for FWS. Except for BRSMG Uai and IAC Formoso, these lines presented the most dominant genes associated in Fusarium wilt resistance. For YIELD, there was a predominance of dominant genes determining higher yield. The 20 F4’s populations with the highest potential included the best 12 of the 20 populations, based on diallel analysis for YIELD. Thus, the 12 populations received the addition of four that were highlighted only by the methodology of Jinks and Pooni (1976), and four based on diallel analysis, which totaled 20 populations. The use of information from more advanced inbreeding generations in complementarity with those of diallel is a promising strategy.

Effect of fertilization with basalt powder and inoculation of Bradyrhizobium spp in common bean

“…The plant originates in South America and there are approximately 55 species, with the most cultivated and commercially produced group being carioca, characterized by its high levels of iron and protein in its composition. Common bean is one of the primary sources of carbohydrates, proteins, vitamins, and minerals (Ferreira et al, 2022;Paulino et al, 2022;Silva et al, 2023).…”

Enhanced understanding of anthracnose resistance in Michigan Dark Red Kidney common bean cultivar

“…Its two primary domestication centers are the Mesoamerican and Andean regions, which can be differentiated by several distinct traits, such as phaseolin types, molecular markers, morphological features, and isoenzymes (Gepts et al, 1988;Singh et al, 1991;Haley et al, 1994;Beebe et al, 2000;Ansari et al, 2004). Common beans are among the most significant legumes for human consumption ( Messa et al, 2019;Coêlho et al, 2020;Carvalho et al, 2021;Chimenez-Franzon et al, 2022;Ferreira et al, 2023;Silva et al, 2023). However, their productivity can be severely impacted by anthracnose, a disease caused by the fungus Colletotrichum lindemuthianum (Sacc.…”