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Call of the squash

Lacayote squash Credit: Courtesy of Thomas Andres" />Lacayote squash Credit: Courtesy of Thomas Andres Last fall, Thomas Andres was wandering around New York City's Chinatown when he happened upon the subject of his doctoral dissertation: the lacayote, Cucurbita ficifolia, a South American squash rarely sold in the United States. He was happy to shell out $6 for the mottled green gourd. Twenty-five years ago, he had dreamed of discovering its wild ancestor on some scrubby hillside in

Brendan Borrell
<figcaption>Lacayote squash Credit: Courtesy of Thomas Andres</figcaption>
Lacayote squash Credit: Courtesy of Thomas Andres

Last fall, Thomas Andres was wandering around New York City's Chinatown when he happened upon the subject of his doctoral dissertation: the lacayote, Cucurbita ficifolia, a South American squash rarely sold in the United States. He was happy to shell out $6 for the mottled green gourd. Twenty-five years ago, he had dreamed of discovering its wild ancestor on some scrubby hillside in Mexico. Because centuries of inbreeding have reduced the genetic diversity of many domesticated crops, finding their natural populations could help scientists identify beneficial genes which could eventually improve crop lines. Unfortunately, the lacayote's wild ancestor never turned up, and Andres never quite finished his PhD.

Apart from a thinning of the hair and a slight bulge at the belly, Andres, 53, still looks the part of a graduate student. He brought his lacayote to fellow squash enthusiast Michael Nee...

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