Broad-spectrum resistance to the potyvirus Turnip mosaic virus (TuMV)

Broad-spectrum resistance to the potyvirus Turnip mosaic virus (TuMV)

Dhaka, 21st January. In the January, 14 issue of The PlantJournal, Charlotte F. Nellist and nine of her associates affiliated respectively, with the School of Life Sciences, University of Warwick,  UK,Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, ChinaandSyngenta Seeds, the Netherlandshave published a paper titled, “Multiple copies of eukaryotic translation initiation factors in Brassica rapa facilitate redundancy, enabling diversification through variation in splicing and broad-spectrum virus resistance.” In this paper, they have reported broad-spectrum resistance to the potyvirus Turnip mosaic virus (TuMV). Accordingto these authors, thisrecessive gene imparts strain-specific resistance to a number of plant viruses in the Potyvirus genus. They have  identified three copies of eIF(iso)4E gene in a number of Brassica rapa lines. According to these authors thisbroad-spectrum resistance to the potyvirus Turnip mosaic virus (TuMV) isdue to a natural mechanism based on the mis-splicing of the eIF(iso)4E allele in some TuMV-resistant B. rapa var. pekinensis lines.

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