The Mexican Landraces: Description, Classification and Diversity

Vielle‐Calzada, Jean‐Philippe; Padilla, Jaime

doi:10.1007/978-0-387-79418-1_27

Cited by 22 publications

(21 citation statements)

References 27 publications

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“…Our results show that the losses are related to the type of corn, and the purple variety evidenced the greatest loss. The average losses of the anthocyanins during sequential steps of lime cooking and tortilla baking ranged between 41% to 71%, and were consistent with findings of losses of anthocyanins by others [2,25], ranging from 70 to 100% during nixtamalization. The data clearly show that lime cooking had the highest adverse effect on anthocyanin contents.…”

Section: Resultssupporting

confidence: 88%

See 1 more Smart Citation

Phase II-Inducing, Polyphenols Content and Antioxidant Capacity of Corn (Zea mays L.) from Phenotypes of White, Blue, Red and Purple Colors Processed into Masa and Tortillas

Martínez

Parkin

Garcı́a

2011

Plant Foods Hum Nutr

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White, blue, red and purple corns (Zea mays L.) were lime-cooked to obtain masa for tortillas. The total phenolics and anthocyanins content, antioxidant activity expressed as total reducing power (TRP), peroxyl radical bleaching (PRAC), total antioxidant activity (TAA) and quinone reductase (QR) induction in the murine hepatoma (Hepa 1 c1c7 cell line) as a biological marker for phase II detoxification enzymes were investigated. Among the extracts prepared from raw corn varieties the highest concentration of total phenolics, anthocyanins, antioxidant index and induction of QR-inducing activity were found in the Veracruz 42 (Ver 42) genotype. The nixtamalization process (masa) reduced total phenolics, anthocyanins and antioxidant activities and the ability for QR induction when was compared to raw grain. Processing masa into tortillas also negatively affected total phenolics, anthocyanin concentration, antioxidant activities, and QR induction in the colored corn varieties. The blue variety and its corresponding masa and tortillas did not induce QR. Ver 42 genotype and their products (masa and tortilla) showed the greatest antioxidant activity and capacity to induce QR.

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Section: Resultssupporting

confidence: 88%

“…Among the largest diversity of genetic resources of Mexican maize, pigmented genotypes as purple, red, and blue are the most common [2]. Phytochemicals content in this type of maize such as phenolics and anthocyanins have been reported [3,4].…”

Section: Introductionmentioning

confidence: 98%

Phase II-Inducing, Polyphenols Content and Antioxidant Capacity of Corn (Zea mays L.) from Phenotypes of White, Blue, Red and Purple Colors Processed into Masa and Tortillas

Martínez

Parkin

Garcı́a

2011

Plant Foods Hum Nutr

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“…parviglumis Iltis & Doebley) (Van Heerwaarden et al, 2011). At least 59 maize races have been described in Mexico and related by origin and distribution to specific geographic regions (Vielle-Calzada & Padilla, 2009). …”

Section: Introductionmentioning

confidence: 99%

Genetic diversity and structure of native maize races from Northwestern Mexico

Vega-Alvarez

Santacruz-Várela

Rocandio‐Rodríguez

et al. 2017

Pesq. agropec. bras.

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-The objective of this work was to evaluate the genetic diversity of nine maize races (Zea mays ssp. mays) from Northwestern Mexico and one population of teosinte of the Balsas race (Zea mays ssp. parviglumis). A total of 649 alleles were identified, with an average of 20.9 alleles per locus using 31 microsatellite loci; 84.3% of them were polymorphic loci with a 0.49 expected heterozygosity. Graphic representation of principal coordinate analysis (PCoA) showed broad variation and population distribution. The highest probabilistic value obtained with the ∆K criterion confirmed the existence of five population groups clustered by the Bayesian model. This grouping coincided with the population distribution observed in the PCoA graph. Maize races examined retain broad genetic diversity among and within the evaluated populations.Index terms: Zea mays, conservation strategies, landraces, microsatellites, plant breeding. Diversidade genética e estrutura das raças de milho nativo do Noroeste do MéxicoResumo -O objetivo deste trabalho foi avaliar a diversidade genética de nove raças de milho (Zea mays ssp. mays) do Noroeste do México e uma população de teosinto da raça Balsas (Zea mays ssp. parviglumis). Foram identificados 649 alelos, uma média de 20,9 alelos por locus, utilizando 31 loci microssatélites. Desses, 84,3% eram polimórficos e apresentaram heterozigosidade esperada de 0,49. A representação gráfica da análise de fatores principais (PCoA) mostrou ampla variação e distribuição populacional. O maior valor probabilístico obtido com o critério ΔK confirmou a existência dos cinco grupos populacionais agrupados com o modelo bayesiano. Esse agrupamento coincide com a distribuição populacional observada no gráfico PCoA. As raças de milho examinadas apresentam ampla diversidade genética entre e dentro das populações avaliadas.Termos para indexação: Zea mays, estratégias conservacionistas, raças nativas, microssatélites, melhoramento vegetal.

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“…Maize monoculture and the replacement of colored maize varieties by white maize as observed in our study have been identified elsewhere (Ortega-Paczka, 2003;Vielle-Calzada and Padilla, 2009). This tendency can be explained by the substitution of MS by SP in our study area.…”

Section: Crop Species Composition and Structurementioning

confidence: 82%