| [genetic variability of the bemisia tabaci (gennadius) biotype b (hemiptera: aleyrodidae) in vegetable crops in são luís, state of maranhão, brazil]. | the rapd technique is widely used to investigate the distinct genetic characteristics of the complex bemisia tabaci (gennadius), which is currently constituted of approximately 41 biotypes. the objective of this research was to characterize populations of whitefly collected in crops of agricultural producing areas in são luís, ma, like okra, beans and pepper, using rapd molecular markers. females from nine whitefly populations were analyzed and compared with b. tabaci biotype b taken from poinse ... | 2009 | 20098922 |