SciELO - Scientific Electronic Library Online

vol.30 issue2Karyological study in the chilean rhatany Krameria cistoidea Hook. & Arn. (Krameriaceae) author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




  • Have no cited articlesCited by SciELO

Related links


BAG. Journal of basic and applied genetics

On-line version ISSN 1852-6233


PANELO, J.S; ALONSO, M.P; MIRABELLA, N.E  and  PONTAROLI, A.C. Molecular marker analysis of spike fertility index and related traits in a bread wheat recombinant inbred line population. BAG, J. basic appl. genet. [online]. 2019, vol.30, n.2, pp.7-20. ISSN 1852-6233.

Spike fertility index (SF) has been well established as an ecophysiological trait related to grain number per unit area and a promising selection target in wheat breeding programs. Scarce information on the molecular basis of SF is available thus far. In this study, a preliminary molecular marker analysis was carried out in a RIL population derived from the cross between two Argentinean cultivars with contrasting SF to identify candidate genomic regions associated with SF. Twenty-four microsatellites and two functional markers that had been found to co-segregate with SF in a bulked-segregant analysis of the F3 generation of the population were analyzed. Phenotypic data were collected from three field experiments carried out during 2013, 2014 and 2015 growing seasons at Balcarce, Argentina. Two genomic regions associated with SF in chromosomes 5BS and 7AS were detected, which merit further investigation.

Keywords : Selection; Genomic regions; Grain number; Yield; QTL; Spike fertility index; Fruiting efficiency.

        · abstract in Spanish     · text in English


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License