Is transgenic maize what Mexico really needs?

被引：13

作者：

Acevedo, Francisca ^{[1
]}

Huerta, Elleli ^{[1
]}

Burgeff, Caroline ^{[1
]}

Koleff, Patricia ^{[1
]}

Sarukhan, Jose ^{[1
]}

机构：

[1] Comis Nacl Conocimiento & Uso Biodiversidad, Mexico City, DF, Mexico

来源：

NATURE BIOTECHNOLOGY | 2011年 / 29卷 / 01期

关键词：

The term landrace was first described by Anderson and Cutler1 as a group of related individuals with enough characteristics in common to permit their recognition as a group. It refers to the varieties and populations of native maize in Mexico and has helped in the study of the genetic diversity of the crop. As part of the implementation of the Biosafety Law—legislation that passed in March 2005 requiring the definition of both the areas of origin for crops native to Mexico and their genetic diversity—the Mexican government has been carrying out a survey of maize landraces since 2006. The program was financed with $1.5 million from the Ministry of Agriculture; Livestock; Rural Development; Fishery and Food (SAGARPA); the Ministry of Environment and Natural Resources (SEMARNAT) and the Inter-Ministerial Commission for Biosafety of Genetically Modified Organisms (CIBIOGEM). Some of the key findings of this survey are as follows (for one of the results already published in Spanish; see http://www. biodiversidad.gob.mx/genes/origenDiv.html and ref. 2): first; a large number of maize landraces are currently being cultivated very widely in Mexico; second; diversity in maize landraces under cultivation is superior to what was originally believed to exist before the study started (in particular for the northern states of Mexico); and third; probable new maize landraces have been identified; diversity is higher than previously appreciated within landraces (such as Tuxpeño; which is the number-one provider of germplasm to most of the maize known in commercial breeding); and new teocintle (the most probable progenitor of maize) populations have been identified;

D O I：

10.1038/nbt.1752

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 [微生物学]; 090105 [作物生产系统与生态工程];

摘要：

引用

页码：23 / 24

页数：2

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