4. Phylogenetic analysis of primary endosymbionts based on 16S rDNA indicates that the non-B biotype is native to China while the B biotype is an invasive biotype.
初生共生细菌的系统发育分析表明，B型是入侵生物型，而浙江非B型是本地生物型。
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5. curly shoot virus and tomato yellow leaf curl virus. These predatethe arrival of biotype B, but the new arrival does particularly well on plants infected by them.
6. On the hand, the germplasm conserving and collection both protect the vital representative resources and avoid the resources are reduce and repeat in the genetic biotype.
对种质资源搜集和保存一方面保护了重要的有代表性的材料，减少或避免基因的流失和资源材料的重复。
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7. A mutated “biotype B” insect emerged in Napa Valley in 1980 and did an estimated $6 billion of damage before wide-scale uprooting, burning and replanting was completed in 1995.
8. The genetic distances among different biotypes were significantly higher than within the same biotype, while Q biotype showed the least genetic distance of 0.9% within itself.
9. The results showed that:(1)the specific amplified patterns using the primer H16 could distinguish biotype B populations from biotype Q populations and non-B/Q biotype population in Zhejiang province;
10. The results showed that:(1)the specific amplified patterns using the primer H16 could distinguish biotype B populations from biotype Q populations and non-B/Q biotype population in Zhejiang province;
