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Analysis of sink/source relations in bread wheat recombinant inbred lines and commercial cultivars under a high yield potential environment
Alonso, Maria Pía; Abbate, Pablo Eduardo; Mirabella, Nadia Estefania; Aramburu Merlos, Fernando; Panelo, J.S.; Pontaroli, Ana Clara (2018-02)Grain yield in wheat is generally considered to be sink-limited during grain filling. But is this limitation inherent to the crop species or a consequence of the breeding process? A way to ascertain this is by using genetic ... -
Assessment of cold tolerance at early developmental stages and allelic variation at candidate genes in South American rice germplasm
Pachecoy, Maria Ines; Ramirez, Ignacio Abel; Marín, Alfredo; Pontaroli, Ana Clara (Springer, 2014-06)Rice is susceptible to cold during early developmental stages. Most tolerant cultivars have been developed for other conditions than those occurring in South America’s rice growing areas, or their grain type is not suitable ... -
Early Selection for high spike fertility index in early generations increases grain number per unit area (and yield) of advanced breeding lines in bread wheat
Alonso, María Pía; Franco, María Fiorella; Pontaroli, Ana Clara (Wiley, 2023-03)Spike fertility index (a.k.a. fruiting efficiency) at maturity (FEm -grain number per spike/g spike chaff at maturity-) and spike harvest index (SHI -grain weight per spike/g spike chaff weight at maturity-) are considered ... -
Effects of photoperiod sensitivity genes Ppd‐B1 and Ppd‐D1 on spike fertility and related traits in bread wheat
Ramirez, Ignacio Abel; Abbate, Pablo Eduardo; Redi, Ignacio W.; Pontaroli, Ana Clara (Wiley Online Library, 2018-04-27)Increasing grain yield is a key breeding goal in bread wheat. Several authors have suggested that a spike fertility index (SF), that is the quotient between grain number per unit spike (GNS) and spikechaff dry weight (SCDW), ... -
Gene content and distribution in the nuclear genome of Fragaria vesca
Pontaroli, Ana Clara; Rogers, Rebekah L.; Qian, Zhang; Shields, Melanie E.; Davis, Thomas M.; Folta, Kevin M.; SanMiguel, Phillip; Bennetzen, Jeffrey L. (Crop Science Society of America, 2009-03)Thirty fosmids were randomly selected from a library of Fragaria vesca subsp. americana (cv. Pawtuckaway) DNA. These fosmid clones were individually sheared, and ∼4- to 5-kb fragments were subcloned. Subclones on a single ... -
Genome-wide association study for resistance in bread wheat (Triticum aestivum L.) to stripe rust (Puccinia striiformis f. sp. tritici) races in Argentina
Franco, Maria Fiorella; Polacco, A.N.; Campos, Pablo Eduardo; Pontaroli, Ana Clara; Vanzetti, Leonardo Sebastian (BioMed Central, 2022-11-24)Background: Wheat stripe rust, caused by Puccinia striiformis f. sp. tritici (Pst), is one of the most devastating diseases of the wheat crop. It causes significant reductions in both grain yield and grain quality. In ... -
Increasing grain yield in bread wheat (Triticum aestivum) by selection for high spike fertility index
Pontaroli, Ana Clara; Alonso, Maria Pía; Mirabella, Nadia Estefania; Panelo, Juan Sebastián; Franco, Maria Fiorella; Vanzetti, Leonardo Sebastian; Lorenzo, Maximo (Wiley, 2021-06-28)Spike fertility index (SF) has been proposed as a promising selection criterion for increasing grain yield (GY) in bread wheat. Here, changes in GY and related traits after simulated selection (10% intensity) for high SF ... -
Selection for high spike fertility index increases genetic progress in grain yield and stability in bread wheat
Alonso, Maria Pía; Mirabella, Nadia. E; Panelo, Juan Sebastián; Cendoya, Maria Gabriela; Pontaroli, Ana Clara (Springer Netherlands, 2018-07-18)Spike fertility index (SF) has been proposed as a promising trait to be used as a selection criterion in wheat breeding programs aimed at increasing grain yield, but no actual evidence of its successful application has ... -
Spike architecture traits associated with type II resistance to fusarium head blight in bread wheat
Franco, Maria Fiorella; Lori, G.; Cendoya, Maria Gabriela; Alonso, Maria Pía; Panelo, Juan Sebastián; Malbrán, I.; Mirabella, Nadia Estefania; Pontaroli, Ana Clara (Springer, 2021-11-05)Fusarium head blight (FHB) remains a devastating disease in bread wheat (Triticum aestivum L.). Genetic resistance to FHB is complex; aside from active physiological resistance, plant developmental and morphological traits ... -
Towards an ideotype for food-fuel dual-purpose wheat in Argentina with focus on biogas production
Gabbanelli, Nadia; Erbetta, Elisa; Sanz Smachetti, María Eugenia; Lorenzo, Maximo; Talia, Paola Mónica; Ramirez, Ignacio; Vera, Magdalena; Durruty, Ignacio; Pontaroli, Ana Clara; Echarte, María Mercedes (BioMed Central, 2021-04-05)Wheat straw, one of the most abundant agricultural residues worldwide, can be used to produce biogas, which is considered one of the most efficiently produced renewable energies. Wheat grown with the dual-purpose of producing ... -
Variation in reproductive frost susceptibility of wheat cultivars is not associated with variation in glume and lemma thickness
Martino, Diana Laura; Abbate, Pablo Eduardo; Biddulph Ben, Thomas; Pontaroli, Ana Clara; Marcovich, Norma (Elsevier, 2020-11-05)The thickness of wheat (Triticum aestivum L.) glumes and lemmas (TGL) influences their thermal insulation properties, which in turn, may influence reproductive frost susceptibility. The objectives of this study were to (i) ... -
Wheat spike fertility : inheritance and relationship with spike yield components in early generations
Martino, Diana Laura; Abbate, Pablo Eduardo; Cendoya, Maria Gabriela; Gutheim, Florencia; Mirabella, Nadia Estefania; Pontaroli, Ana Clara (2015)In wheat, grain number is considered as the product of spike dry weight (SDW) and the number of grains per unit of SDW, that is an indicator of spike fertility (SF). The aim of this study was to determine the heritability ...