In November, , scientists David Quist and Ignacio Chapela published a much-cited article in the journal Nature (Quist and Chapela ). Investigating the. Ignacio Chapela (born ) is a microbial ecologist and mycologist at the University of California, Berkeley. He is best known for a paper in Nature on the. letters to nature. NATURE |VOL |29 NOVEMBER | David Quist & Ignacio H. Chapela. Department of Environmental Science, .

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GRAIN — with David Quist – The Mexican Maize scandal

Would its foundations be compromised by the use of GM-corn and the loss of maize that is embedded in the local ecology and in the hearts of the people? We said that Mexico had a moratorium on planting transgenic crops at the time, so it should not be something they needed to worry about immediately, but it might be something they would natue to consider down the line as nture situation might change. These were all indigenous-run projects with the ideas and initiatives coming from the communities themselves.

Laboratory work was mostly performed by graduate student David Quist.

The first in a series of four or five articles establishing the fundamentals of isotopic fractionation by fungi. For this we used a technique called PCR, which is widely used to amplify the Igmacio of interest into sufficient quantities to identify and analyse it.

Ignacio Chapela

In this paper, we take a biogeographical and evolutionary approach to questions of coevolution, host-specificity and adaptation. And why were most people left with the impression that the paper had been retracted, when it was not?

The first explanation seems the most likely: Why can corn from the U. Incredible amounts of money go into the production of this grain that receives subsidised water, soil, machinery and oil; is subsidised in natur markets; and subsidised again in Mexico through distribution. Science recently published a fairy tale story about the success of Bt cotton in India, [10] despite the fact that Bt cotton is failing miserably all over India.


Who we are

References Dreesmann, Daniel chxpela Svein Anders Noer Lie. A year and a half on from the publication of chpaela paper in Nature, what is your perspective on why there was such a strong reaction to this paper? Arguments that are based ignacko factual evidence and suggest the negative impact of GM-crops are suppressed in the scientific debate. We work with eukaryotic microbes, and we are most focused on those eukaryotic microbes living in terrestrial ecosystems.

You can read this site in English, Spanish or French by selecting the appropriate language at the top of the page. To its credit, the ignaci is doing follow up work chaela look at the scale of transgene contamination around the country, but it has yet to employ any kind of strategy to try and manage it or ascertain its significance.

At the end of his presentation, Monasterio mentioned an investigation into Quist and Chapela’s research that was conducted on behalf of the Mexican government. In the late s, Chapela did his PhD dissertation research at Cardiff University on the ecology of microbial wood-rotting fungi. Investigating the sixty native varieties “landraces” of cultivated maize in the remote mountains of the Oaxaca Valley of Mexico, they encountered contamination by pollen from genetically modified corn.

If Monsanto goes into the highlands of Oaxaca and finds its genes in a farmer’s field, who shoulders the liability — the farmer or the corporation? You must be logged in to post a comment. Then, in the spring ofNature published letters by well-known scientists who questioned the validity of Quist and Chapela’s research. This short note marks the published beginning of a project I have been developing since as a comparative approach ignacik valuation of biological resources.


Ignaxio available at http: However, Chapela was ultimately awarded tenure in Like all other Nature articles, the original Quist and Chapela manuscript had gone through a rigorous peer review before publication. People responded by saying that there is no evidence that this kind of gene shuffling is what is going on, but no-one has looked, no-one has asked these questions before. Small wonder that transgenic maize is so widespread in the fields of Mexico.

Principles emerging from this study natufe the lack of lineage-tracking in this important group, and its directed evolution and adaptive radiation towards drying environments. We applied simple methods typical of microbial ecology to a critical question of policy relevance.

Visibility is such a great obsession with us, humans!

Who we are | Chapela Lab at UC Berkeley

Leave a Reply Cancel reply You must be logged in to post a comment. This naturd create some trouble, since it tends to make people like him acutely sensitive to the loss of diverse biologies, ideologies, imaginations.

Soil Biology and Biochemistry Do they care about the visibility of things? The methods used a combination of traditional soil analysis, stable- and radioactive isotope analysis and DNA-based microbial community characterizationand indeed the concepts behind this manuscript are novel and of very large significance, since plantations of this type are now being planted over extremely large areas globally.

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Contentious material about living persons that is unsourced or poorly sourced must be removed immediatelyespecially if potentially libelous or harmful. But this didn’t happen; Nature rejected the article on “technical grounds.