Team sequences shea tree genome to support breeding and conservation efforts in the United Kingdom

Published 2021년 9월 9일

Tridge summary

A team of international researchers, led by the University of New Hampshire, has sequenced the genome of the shea tree, a crucial crop for hundreds of thousands of African families. The slow-growing tree is under threat by other cash crops, and its survival may lie in genetic improvement. The genome sequencing will enable researchers to identify tree characteristics and distinguish trees using nearly 3.5 million natural genetic variations. The research could lead to better selection strategies for shea tree seedlings and potentially enhance the value of shea in the landscape. The genome also identified forty-five fatty acid biosynthesis genes in shea, which could help identify enzymes that govern stearin content, a key quality factor for the chocolate industry.

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Original content

The shea tree is a vital social and economic crop that is best known for the popular product shea butter—a multimillion-dollar ingredient used in cosmetics, personal care products, pharmaceuticals and chocolate. For hundreds of thousands of African families living in the "shea belt" it is also a crucial source of nutrition and income. Despite its increasing demand, the slow-growing shea tree is being threatened by other cash crops and its preservation most likely lies in its genetic improvement. To enable such work, an international team of researchers led by the University of New Hampshire has sequenced the shea tree's genome, providing a valuable resource for the strategic development of the species. "A shea tree can take 25 years or more to come into production so ...

Source: Phys