Tomato yellow leaf curl geminivirus (TYLCV-Is) is transmitted among whiteflies (Bemisia tabaci) in a sex-related manner
Tomato yellow leaf curl geminivirus (TYLCV-Is) is transmitted among whiteflies (Bemisia tabaci) in a sex-related manner
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DOI：
10.1128/jvi.74.10.4738-4745.2000
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发表时间：
2000-05-01
影响因子：
5.4
通讯作者：
Czosnek, H
中科院分区：
文献类型：
--
作者：
Ghanim, M;Czosnek, H
番茄黄化曲叶病毒（TYLCV）是一种感染全世界番茄栽培的双生病毒复合体。TYLCV是由一个单一的昆虫物种，烟粉虱，在这里，我们表明，从以色列（TYLCV-Is）分离的TYLCV可以在粉虱之间传播的依赖性的方式，在没有任何其他来源的病毒。TYLCV可由带毒配偶传毒至雌虫，也可由带毒雌虫传毒至雄虫，但在同一性别的昆虫之间不传毒。昆虫对昆虫的病毒传播有助于增加粉虱种群中能够感染番茄测试植物的粉虱数量。TYLCV存在于与其他性别的含病毒昆虫一起关在笼子里的粉虱的血淋巴中;因此，病毒至少部分地遵循与从受感染植物获得相关的循环途径。总的来说，这些结果意味着植物病毒可以在昆虫之间通过性传播。
Tomato yellow leaf curl virus (TYLCV) is the name given to a complex of geminiviruses infecting tomato cultures worldwide. TYLCV is transmitted by a single insect species, the whitefly Bemisia tabaci, Herein we show that a TYLCV isolate from Israel (TYLCV-Is) can be transmitted among whiteflies in a ses-dependent manner, in the absence of any other source of virus. TYLCV was transmitted from viruliferous mates to females and from viruliferous females to males but not among insects of the same sex, Transmission took place when insects were caged in groups or in couples, in a feeding chamber or on cotton plants, a TYLCV nonhost, The recipient insects mere able to efficiently inoculate tomato test plants. Insect-to-insect virus transmission was instrumental in increasing the number of whiteflies capable of infecting tomato test plants in a whitefly population. TYLCV was present in the hemolymph of whiteflies caged with viruliferous insects of the other sex; therefore, the virus follows, at least in part, the circulative pathway associated with acquisition from infected plants. Taken as a whole, these results imply that a plant virus can be sexually transmitted from insect to insect.