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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Principles emerging from this study include the lack of lineage-tracking in this important group, and its directed evolution and adaptive radiation towards drying environments.

There could be various explanations of why this might be, one of which is that the transgenes had become reinserted through recombination. There are some campaigns where it would be undesirable or even disastrous to let the audience know that your organization is directly nqture The Mexican government did a follow-up study in response to your findings.

Proudly powered by WordPress. Phylogenetics of Lophodermium from pine. The first in a series of four or five articles establishing the fundamentals of isotopic fractionation by fungi.

After much debate and eight rounds of review, the manuscript was accepted. We went back to the lab, did some new sampling, and more widespread and stringent analysis, the results of which became the Nature paper.

Fourth, we provide solid biological data and concepts to inform what has been traditionally a fickle and speculative market which is, nonetheless, very important across the Northern Hemisphere. The most recent culmination of my work on an important group of angiosperm-associated fungi, with which I have been working since my doctoral dissertation. Learn more in our Lab Website. Then, in the spring ofNature published letters by well-known scientists who questioned the validity of Quist and Chapela’s research.


Fhapela now an international consensus has held that the areas of origin of domesticated plants must be protected from exposure to GM-crops in order to preserve this rich genetic heritage for the future.

Who we are | Chapela Lab at UC Berkeley

Situations like this call into question whether these journals can continue to be looked to as a reliable source of objective science. David Quist was one of the authors of the first study to report the contamination of one of the centres of genetic diversity with genetically modified GM crops. The maize that comes into Mexico gets distributed through welfare food systems around the country. Contentious material about living persons that is unsourced or poorly sourced must be removed immediatelyespecially if potentially libelous or harmful.

The first wave of response was to trivialise the first statement that we made, which simply said natuer the transgenes were present in the native landraces.

If Monsanto goes into the highlands of Oaxaca and finds its genes in a chapeela field, who shoulders the liability — the farmer or the corporation? Born as first-generation Mexico Cityan from the mix, common to that country, of indigenous, indigenized and immigrant stocks. Listen here – https: One argued that the results were already common knowledge! Quist, David and Ignacio Chapela Why can corn from the U.

The Case of Mexican Maize

Office hours By Appointment. Family, fishing, skiing and gardening all attract exclamation marks for him! It was a huge PR disaster.


But this didn’t happen; Nature rejected the article on “technical grounds. What is the story behind the study that ignited such controversy around the world?

Ignacio Chapela

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. What we are seeing more and more is that the science of substantiating facts is overriding science as a process, which is all ignaacio questioning and re-examining our assumptions, in order to lead us to a better understanding of reality.

To date, Mexico imports annually about six million tons of corn for food from the U. Another reason was that the timing of these findings was really bad for the industry – our findings were biting up against the debates on the moratoria in Europe, Mexico and Brazil.

The postings, which were submitted under the names of private individuals, portrayed Chapela, among other things, as an activist who colludes with environmentalists.

Who we are

Indeed, my desire to gain closer precision on techniques used in this paper spawned a new line of research in the microbial processing of stable C isotopes in my laboratory and elsewhere in the world. Heaf, David and Johannes Wirz, eds. Vhapela were all indigenous-run projects with the ideas and initiatives coming from the communities themselves.