Naslov
Genomic analysis of the brassica pathogen turnip mosaic potyvirus reveals its spread along the former trade routes of the Silk Road

Autori
Kawakubo, Shusuke ; Gao, Fangluan ; Li, Shifang ; Tan, Zhongyang ; Huang, Ying-Kun ; Adkar-Purushothama, Charith Raj ; Gurikar, Chennappa ; Maneechoat, Phoowanarth ; Chiemsombat, Pissawan ; Aye, Seint San ; Furuya, Naruto ; Shevchenko, Oleksiy ; Špak, Josef ; Škorić, Dijana ; Ho, Simon Y.W. ; Ohshima, Kazusato

Izvornik
Proceedings of the National Academy of Sciences of the United States of America (0027-8424) 118 (2021), 12; E2021221118, 10

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
turnip mosaic potyvirus, brassica vegetables, Eurasia, Silk Road, molecular evolution

Sažetak
Plant pathogens have agricultural impacts on a global scale andresolving the timing and route of their spread can aid cropprotection and inform control strategies. However, the evolution-ary and phylogeographic history of plant pathogens in Eurasiaremains largely unknown because of the difficulties in samplingacross such a large landmass. Here, we show that turnip mosaicpotyvirus (TuMV), a significant pathogen of brassica crops, spreadfrom west to east across Eurasia from about the 17th century CE.We used a Bayesian phylogenetic approach to analyze 579 wholegenome sequences and up to 713 partial sequences of TuMV, including 122 previously unknown genome sequences from iso-lates that we collected over the past five decades. Our phylogeo-graphic and molecular clock analyses showed that TuMV isolatesof the Asian-Brassica/Raphanus(BR) and basal-BR groups andworld-Brassica3 (B3) subgroup spread from the center of emer-gence to the rest of Eurasia in relation to the host plants grownin each country. The migration pathways of TuMV have retracedsome of the major historical trade arteries in Eurasia, a networkthat formed the Silk Road, and the regional variation of the virus ispartly characterized by different type patterns of recombinants.Our study presents a complex and detailed picture of the timescaleand major transmission routes of an important plant pathogen.

Izvorni jezik
Engleski

Znanstvena područja
Biologija

Napomena
Integralni dio rada su dopunski materijali na poveznici: https://www.pnas.org/lookup/suppl/doi:10.1073/pnas.2021221118/-/DCSupplemental

POVEZANOST RADA