Issue:ISSN 2095-1353
CN 11-6020/Q
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2011年48 No.1
Preliminary study of succession of Bemisia tabaci biotypes in Jiangsu Province,China
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Key Words：Bemisia tabaci,biotype,succession,Jiangsu Province,China
Abstract： The occurrence and distribution of Bemisia tabaci(Gennadius) biotypes in 13 cities in Jiangsu Province was surveyed systematically from 2005 to 2009 and biotypes identified on the basis of RAPD marks and mtDNA COI gene sequence. The results showed that the B. tabaci B and Q biotypes co-exist in Jiangsu Province but that the distribution of the B biotype has decreased while that of the Q biotype has increased. The frequency of the B biotype ranged from 52.58% to 22.22% in Northern Jiangsu and from 56.52% to 9.37% in Southern Jiangsu. The distribution of the Q biotype ranged from 47.42% to 77.78% in Northern Jiangsu and from 43.48% to 90.63% in Southern Jiangsu. The Q biotype has spread from Southern and Central Jiangsu to Northern Jiangsu and has gradually replaced the B biotype as a major crop pest in Jiangsu Province.