Abstract
Potato leaf roll virus (PLRV) is one of the most important viruses infecting members of Solanaceae
family. Among the members of Solanaceae family, potato crop is the most significant host of PLRV.
The PLRV belongs to genus Polerovirus in the family Luteoviridae. It causes variety of symptoms
depending on the viral strain, time of infection, host tolerance and environmental factors. The
symptoms of PLRV are stunting and dwarfing of infected potato crops, reddening or yellowing and
rolling of their leaves. It also reduces the size as well as number of potato tubers with annual global
yield losses up to 20 million tonnes. In Pakistan PLRV has caused severe yield losses. It contains
positive sense single stranded RNA ((+)ssRNA) of 5.9 kb genome. The virus can be transmitted by
aphid vectors in circulative, non-propagative manner and experimentally by grafting. Among the
aphid vectors, Myzus persicae is known to be its most efficient vector. There are various management
strategies but most economic and environmentally satisfactory way of managing is breeding of
resistant potato cultivars with effective vector control. Other approaches are thermotherapy, tissue
culture, pathogen derived resistance and seed potato certification programs. Since PLRV is
responsible for significant yield loss in potato crops of Pakistan, so understanding its biology and
developing an efficient management strategy is very important.
Aqleem Abbas, Muhammad Arif, Murtaza Ali. (2016) A REVIEW PAPER ON POTATO LEAF ROLL VIRUS (PLRV) OF POTATO IN PAKISTAN, Asian Journal of Agriculture and Biology, Volume 4, Issue 3.
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