Abstract

VILLASENOR MIR, Héctor Eduardo et al. Using genetic male-sterility in the conversion of genotypes for recurrent selection in wheat. Rev. Mex. Cienc. Agríc [online]. 2015, vol.6, n.spe11, pp.2177-2182. ISSN 2007-0934.  https://doi.org/10.29312/remexca.v0i11.795.

The conversion of fertile male sterile elite genotypes is important to efficiently implement MSFRS in wheat, as it will be the genetic basis to represent the progress made by the program and platform for future genetic progress. The aim of the research is to evaluate the advantages of the dominant male sterile mutant “Oly” in the conversion and incorporation of character elite wheat material. 20 genotypes from the program of rainfed wheat from the INIFAP-CEVAMEX were used and, as the source of infertility the caused by a single dominant gene called “Oly”. Once the single cross of fertile male -sterile plants genotypes, performing six test crosses of the elite genotypes into sterile plants to recover them. Most of the genotypes showed high degree of similarity in plant height, where only three showed statistically significant differences, whereas for spike length and reaction to yellow rust only two isolines significant difference was detected. The male sterile mutant “Oly” was effective in the conversion and was not found to be linked to deleterious effects, allowing its use in the formation of male sterile populations for recurrent selection in wheat.

Keywords : dominant mutant; isolines on wheat; population improvement.

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