Genetic Diversity of Grapevine Virus A in Three Australian Vineyards Using Amplicon High Throughput Sequencing (Amplicon-HTS)

Author:

Wu Qi12ORCID,Kinoti Wycliff M.3,Habili Nuredin12,Tyerman Stephen D.1,Rinaldo Amy2,Constable Fiona E.34ORCID

Affiliation:

1. School of Agriculture, Food and Wine, University of Adelaide, Waite Precinct, PMB 1, Glen Osmond, SA 5064, Australia

2. Australian Wine Research Institute, Wine Innovation Central Building, Hartley Grove crn Paratoo Road, Urrbrae, SA 5064, Australia

3. Agriculture Victoria Research, Department of Energy, Environment and Climate Action, AgriBio, Centre for AgriBioscience, 5 Ring Road, Bundoora, VIC 3083, Australia

4. School of Applied Systems Biology, La Trobe University, Bundoora, VIC 3086, Australia

Abstract

Shiraz disease (SD) is one of the most destructive viral diseases of grapevines in Australia and is known to cause significant economic loss to local growers. Grapevine virus A (GVA) was reported to be the key pathogen associated with this disease. This study aimed to better understand the diversity of GVA variants both within and between individual SD and grapevine leafroll disease (LRD) affected grapevines located at vineyards in South Australia. Amplicon high throughput sequencing (Amplicon-HTS) combined with median-joining networks (MJNs) was used to analyze the variability in specific gene regions of GVA variants. Several GVAII variant groups contain samples from both vineyards studied, suggesting that these GVAII variants were from a common origin. Variant groups analyzed by MJNs using the overall data set denote that there may be a possible relationship between variant groups of GVA and the geographical location of the grapevines.

Funder

Wine Australia

Agriculture Victoria Research

University of Adelaide

Australian Wine Research Institute

Publisher

MDPI AG

Subject

Virology,Infectious Diseases

Reference101 articles.

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4. Wu, Q., Habili, N., Constable, F., Al Rwahnih, M., Goszczynski, D.E., Wang, Y., and Pagay, V. (2020). Virus pathogens in Australian vineyards with an emphasis on Shiraz disease. Viruses, 12.

5. Habili, N., and Randles, J.W. (2012, January 7–14). Major yield loss in Shiraz vines infected with Australian Shiraz disease associated with grapevine virus A. Proceedings of the 17th Meeting of the International Council for the Study of Viruses and Virus-like Diseases of the Grapevine, Davis, CA, USA.

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