World’s first walnut genome mapped in Yunnan

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ศาสตร์เกษตรดินปุ๋ย : ขอบคุณแหล่งข้อมูล : หนังสือพิมพ์ The Nation

http://www.nationmultimedia.com/aec/Worlds-first-walnut-genome-mapped-in-Yunnan-30278552.html

AEC NEWS

Wang Yonggang
Yunnan Express   THU, 4 FEB, 2016 5:39 PM

YUNNAN – The world’s first whole-genome of the deep-wrinkled walnut has been successfully deciphered and sequenced, according to information released at a press briefing on February 2 by the Kunming Institute of Botany of the Chinese Academy of Sciences (KIB/CAS).

This genetic sequencing makes evidence that China’s basic research in walnut industry has entered the era of molecular biology, laying a solid scientific foundation for innovation of the woody-oil industry at and other low-latitude industries in Yunnan.

Walnut plants are grouped into more than 60 species, of which 8 species are grown in China. The species grown in Yunnan features deep wrinkles, and it makes a local specialty in southwest China.

Leading a joint research team, Li Weiqi, a research fellow with the KIB/CAS, collected walnut leaf samples of the wild ancestral species in the Wuliangshan national nature reserve. Using advanced sequencing technology, the Li-led team completed a fine sequencing of the walnut whole genome.

Combining data in genomics, proteomics and lipids, the research team also explored the walnut material-basis in nutrition and health care in the genetic deciphering process. It is discovered that the walnut produces 86 bioactive peptides with known functions, including 43 antifungal peptides, 31 antibacterial peptides, 5 antiviral peptides, and 4 anti-cancer peptides.

The whole genome sequencing will make it possible to breed target crops designed on molecular basis. At the same time, by comparing genetic information of walnut varieties, the genetic codes that control biological traits of the species can be gained. This will provided technical support in selection, protection and promotion of fine breeds.

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