A virus and its vector,pepper yellow leaf curl virus and <Emphasis Type="Italic">Bemisia tabaci</Emphasis>, two new invaders of Indonesia |
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Authors: | Paul J De Barro Sri Hendrastuti Hidayat Don Frohlich Siti Subandiyah Shigenori Ueda |
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Institution: | (1) CSIRO Entomology, 120 Meiers Road, Indooroopilly, QLD, 4068, Australia;(2) Department of Plant Pests and Diseases, Bogor Agricultural University, Kampus IPB Darmaga, Bogor, West Java, 16680, Indonesia;(3) Department of Biology, University of St Thomas, 38000 Montrose Blvd, Houston, TX 77006, USA;(4) Department of Entomology and Plant Pathology, Faculty of Agriculture, Gadjah Mada University, Yogyakarta, 55281, Indonesia;(5) National Agricultural Research Centre for Kyushu, Okinawa Region, Kumamoto 861-1192, Japan |
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Abstract: | Bemisia tabaci is a species of sap-sucking insect belonging to the Aleyrodidae and are commonly known as whiteflies. The species is made
up of a complex of distinct genetic groups which have a strong geographic pattern to their genetic structure. Two members
of this complex known as the B and Q biotypes have proven to be particularly invasive, spreading with the aid of trade in
ornamental plants, well beyond their home ranges across the Mediterranean Basin, Middle East and Asia Minor. This study uses
DNA microsatellites to identify another biological invasion this time involving a B. tabaci from south east Asia. We provide evidence which supports an invasion sometime between 1994 and 1999 of B. tabaci from central Thailand into the Indonesian islands of Sumatra then Java and Bali. The invasion is also associated with the
invasion of pepper yellow leaf curl virus, a begomovirus transmitted by B. tabaci, which is also shown to have a probable origin in the same geographic region as the invading whitefly. The consequences of
the invasion of a plant-infecting virus and its vector has been a massive increase in the scale and impact of begomoviruses
in tomato and chilli production which has seen regional bans imposed on the planting of chilli, an important cash crop for
many village farmers in Sumatra and Java. |
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Keywords: | Biological invasions Bemisia tabaci Microsatellite DNA Begomovirus Pepper yellow leaf curl virus Invasion genetics |
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