番茄褪绿病毒（ToCV）是我国近年来暴发的给番茄等蔬菜生产造成毁灭性危害的病毒，目前已知该病毒不能靠汁液摩擦传播，在我国主要由烟粉虱传播，但是关于ToCV传播的影响因素，如烟粉虱传播病毒的特性、烟粉虱对感染病毒植物的的选择性及在感病植物上的生物学特性等仍缺乏研究。围绕这一关键科学问题，本研究拟采用昆虫生理学、行为学及分子生物学的技术与方法，以我国田间主要存在的B、Q型烟粉虱和ToCV为研究对象，重点研究烟粉虱获取、保留和传播ToCV的特点，带毒、不带毒的B、Q型烟粉虱对植物的选择性，感染番茄褪绿病毒的植物对烟粉虱及其后代生长发育的影响等，从而明确烟粉虱传播ToCV的特性。预期研究结果有助于揭示烟粉虱对ToCV暴发流行的影响，为今后深入开展ToCV-烟粉虱-植物三者互作提供基础，也为研发ToCV的有效防控技术提供理论依据。

Tomato chlorosis virus（ToCV）is emerging in recent years and causing devastating damage to tomato and other vegetable production. As we know, ToCV cannot be transmitted by juice friction, and it is mainly transmitted by Bemisia tabaci in China. However, there is still lack of research on factors that influence the transmission of ToCV, such as transmission characteristic of ToCV by B. tabaci, preference of whiteflies to ToCV-infected plants and biological characteristic of whiteflies on ToCV-infected plants. Based on this scientific issue, this study intends to use the methods of insect physiology, insect behavior and molecular biology to study the interaction of ToCV and B. tabaci B and Q which mainly break out in the field. Our goal is to determine the characteristics in acquisition, retention and transmission of ToCV by B. tabaci B and Q, and the preference of viruliferous and non-viruliferous B. tabaci B and Q to plants, and the effect of ToCV-infected plants on growth and development of whiteflies and their offspring, thereby we will confirm the transmission characteristic of ToCV by whiteflies. Our expected results will reveal the effect of whiteflies on the outbreak of ToCV, and provide a basis for research on the interactions of insect-virus-plant, and therefore provide a theoretical reference to effectively control tomato chlorosis virus.