Interacción Genotipo-Ambiente Del Rendimiento Y Calidad De Grano Y Tortilla De Híbridos De Maíz en Valles Altos De Tlaxcala, México

Carrillo, María Gricelda Vázquez; Ramos, David Santiago; Moreno, Yolanda Salinas; Martínez, Israel Rojas; Vázquez, José Luis Arellano; Cardelas, Gustavo Adrían Velázquez; Calderón, Alejandro Espinosa

doi:10.35196/rfm.2012.3.229

Cited by 9 publications

(22 citation statements)

References 6 publications

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“…Despite efforts to develop MVs genetic pools adapted to the highlands (23,73,74), their presence in the highlands is still scarce (34,36). We did not find any MVs in sympatry with the Chalqueño highland LR.…”

Section: Discussioncontrasting

confidence: 58%

Contemporary evolution of maize landraces and their wild relatives influenced by gene flow with modern maize varieties

Rojas‐Barrera

Wegier

González

et al. 2019

Proc. Natl. Acad. Sci. U.S.A.

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Mexico is recognized as the center of origin and domestication of maize. Introduction of modern maize varieties (MVs) into Mexico raised concerns regarding the possible effects of gene flow from MVs into maize landraces (LRs) and their wild relatives (WRs), teosintes. However, after more than 60 y from the release of the first MVs, the impact of the sympatry with LRs and their WRs has not been explored with genetic data. In this work, we assessed changes in the genomes of 7 maize LRs and 2 WR subspecies from collections spanning over 70 y. We compared the genotypes obtained by genotyping by sequencing (GBS) for LRs and WRs before and after the adoption of MVs, and observed introgression from sympatric MVs into LRs and into the WR Zea mays ssp. mexicana sampled after the year 2000. We also found a decrease in the paired divergence index (FST) between MV-LR and MV-WR over the same time frame. Moreover, we determined that LR genetic diversity increased after 2000, probably as a result of gene flow from MVs introduced in the 1990s. Our findings allowed us to identify ongoing changes in the domesticated and wild maize genetic pools, and concur with previous works that have evaluated short-term gene flow from MVs into LRs in other crops. Our approach represents a useful tool for tracking evolutionary change in wild and domesticated genetic resources, as well as for developing strategies for their conservation.

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Section: Discussioncontrasting

confidence: 58%

Contemporary evolution of maize landraces and their wild relatives influenced by gene flow with modern maize varieties

Rojas‐Barrera

Wegier

González

et al. 2019

Proc. Natl. Acad. Sci. U.S.A.

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“…Huamantla produced the highest yield and the largest grains, while BJ produced the lowest yield and the smallest grains (Table 4). Vázquez‐Carrillo et al (2012b) also reported that, in 2009, of the 20 hybrids evaluated in six locations, HU had the largest grains. In this regard, Cheikh and Jones (1994), Muchow (1990), and Monjardino et al (2005) demonstrated that high temperatures accelerate grain development but reduce the grain‐filling period, hence their individual weight.…”

Section: Resultsmentioning

confidence: 95%

“…Recently, the effect of GE on grain quality traits for the nixtamalization process has been studied. Vázquez‐Carrillo et al (2012a, 2012b, 2013) and Miranda et al (2013) demonstrated that the main environmental factors influencing grain quality for nixtamalization are temperature and the distribution of precipitation at critical growth stages (anthesis, silking, and grain filling), as well as soil type and fertilizer management. Minimum temperatures below 15°C or maximum temperatures above 25°C during the grain‐filling period cause a reduction in photosynthesis and a decrease in the number of starch granules accumulated, thus decreasing yield, hardness, and grain size (Vázquez‐Carrillo et al, 2012a, 2012b).…”

mentioning

confidence: 99%

Stability Analysis of Yield and Grain Quality Traits for the Nixtamalization Process of Maize Genotypes Cultivated in the Central High Valleys of Mexico

et al. 2016

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In the central high valleys of Mexico, no maize hybrid or variety has shown enough stability to satisfy farmers or the processing industry, in terms of either grain yield or quality parameters for tortilla‐making. The objective of this work was to evaluate the stability of grain yield and grain physical characteristics, as well as of variables of the nixtamalization process and the tortilla quality of 11 maize genotypes cultivated in six locations of the central high valleys of Mexico. Stability was assessed based on the sites regression model (SREG). All variables were affected by the genotype by environment interaction, but only grain yield, hundred‐grain weight, flotation index, test weight, nixtamal moisture, retained pericarp, and tortilla yield were well explained by the SREG model. Among genotypes, ‘H‐76’ was outstanding in this study for its stability in grain yield and size, white grains (grain luminosity = 67.6), and reduced dry matter loss (4.3%) during nixtamalization, more retained pericarp in its nixtamal (42.1%), and good tortilla yield (1.41 kg kg−1 of maize). The best quality traits for nixtamalization process were obtained in 2012 in Huamantla and the worst in Benito Juarez, results that were influenced by good and poor agroclimatic conditions, respectively. The SREG model is a good tool for assessing the stability of grain traits for the nixtamalization process and tortilla quality and enabled identification of the best genotype for recommendation in a large region.

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“…Races with grains of intermediate size and density are preferred for tortilla-making: these include 'Ancho', 'Apachito', 'Arrocillo', 'Azul', 'Blando', 'Bofo', 'Bolita', 'Conejo', 'Cónico', 'Elotero de Sinaloa', 'Gordo', 'Olotillo', 'Olotón', 'Pepitilla', 'Reventador', 'Tepecintle', 'Tuxpeño', 'Zapalote Chico', 'Zapalote Grande' [52,53]. For the preparation of pozole, a traditional soup in Mexico, the most used races are 'Ancho', 'Blando de Sonora', 'Bofo', 'Bolita', Cacahuacintle',' Elotes Occidentales', 'Gordo', 'Harinoso de Ocho', 'Jala', 'Mushito de Michoacán', 'Tabloncillo', and 'Tuxpeño', that have large and soft grains [54]. In Bolivia, the races 'Chuspillu' and 'Kulli' are associated with the production of the famous fermented drink chicha [27].…”

Section: Uses Of Maize Landraces For Human Consumptionmentioning

confidence: 99%

Conservation and Use of Latin American Maize Diversity: Pillar of Nutrition Security and Cultural Heritage of Humanity

Guzzon

Rios²,

Cepeda

et al. 2021

Agronomy

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Latin America is the center of domestication and diversity of maize, the second most cultivated crop worldwide. In this region, maize landraces are fundamental for food security, livelihoods, and culture. Nevertheless, genetic erosion (i.e., the loss of genetic diversity and variation in a crop) threatens the continued cultivation and in situ conservation of landrace diversity that is crucial to climate change adaptation and diverse uses of maize. We provide an overview of maize diversity in Latin America before discussing factors associated with persistence of large in situ maize diversity, causes for maize landrace abandonment by farmers, and strategies to enhance the cultivation of landraces. Among other factors, maize diversity is linked with: (1) small-holder farming, (2) the production of traditional food products, (3) traditional cropping systems, (4) cultivation in marginal areas, and (5) retention of control over the production system by the farmers. On the other hand, genetic erosion is associated with substitution of landraces with hybrid varieties or cash crops, and partial (off-farm labor) or complete migration to urban areas. Continued cultivation, and therefore on-farm conservation of genetic diversity held in maize landraces, can be encouraged by creating or strengthening market opportunities that make the cultivation of landraces and open pollinated varieties (OPVs) more profitable for farmers, supporting breeding programs that prioritize improvement of landraces and their special traits, and increasing the access to quality germplasm of landraces and landrace-derived OPVs.

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Interacción Genotipo-Ambiente Del Rendimiento Y Calidad De Grano Y Tortilla De Híbridos De Maíz en Valles Altos De Tlaxcala, México

Cited by 9 publications

References 6 publications

Contemporary evolution of maize landraces and their wild relatives influenced by gene flow with modern maize varieties

Contemporary evolution of maize landraces and their wild relatives influenced by gene flow with modern maize varieties

Stability Analysis of Yield and Grain Quality Traits for the Nixtamalization Process of Maize Genotypes Cultivated in the Central High Valleys of Mexico

Conservation and Use of Latin American Maize Diversity: Pillar of Nutrition Security and Cultural Heritage of Humanity

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