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Insect Transmission of Tomato Yellow Leaf Curl Viruses

机译：番茄黄叶卷曲病毒的昆虫传播

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Whitefly-transmitted tomato yellow leaf curl disease (TYLCD) is associated with many phylogenetically related viruses named tomato yellow leaf curl viruses that belong to the genus Begomovirus of the family Geminiviridae. Begomoviruses are mainly transmitted by the sweet potato whitefly, Bemisia tabaci (family Aleyrodidae, order Hemiptera), which is also a species complex with many biotypes. TYLCD is one of the most devastating viral diseases affecting tomato production in tropical and temperate areas worldwide, and the invasion of begomoviruses into a new region always accompanies the expansion of B. tabaci population. It is always thought that B. tabaci transmits begomoviruses in a persistent-circulative transmission mode; however, some studies showed that begomoviruses not only circulate in the hemolymph of B. tabaci but also replicate in it. In addition, Tomato yellow leaf curl virus Israel isolate (TYLCV-Is) was reported to be transovarially transmitted from virus-infected females to their progeny. TYLCV-Is is a well-studied begomovirus, and its transmission by B. tabaci has been examined in details. The acquisition access period and inoculation access period of TYLCV-Is transmission seems to be much shorter than those characteristics of typical persistent-circulative transmission mode. The vector transmission of TYLCV-Is requires a short latent period, and the virus persists and replicates in its insect vector. After reviewing related studies, we propose that few begomoviruses (at lease TYLCV-Is) are transmitted by B. tabaci in a special type of persistent-propagative transmission mode. More studies on the vector transmission of other begomoviruses are needed.
机译：粉状传播的番茄黄叶卷曲疾病（Tylcd）与许多名为番茄黄叶卷曲病毒的系统有关的病毒，属于Geminiviridae的家庭原因毛动作。 Begomoviruses主要由红薯粉虱，Bemisia Tabaci（Family Aleyrodidae，Order Hemiptera）传播，这也是一种具有许多生物型的物种复合物。 Tylcd是影响全球热带和温带地区番茄生产的最毁灭性的病毒疾病之一，并且对新地区的口头病毒入侵总是伴随着B. Tabaci人口的扩张。总是认为B. tabaci以持久的循环传输模式透射前voviruses;然而，有些研究表明，前对象病毒不仅在B. tabaci的血淋巴中循环，而且还在其中复制。此外，据报道，番茄黄叶卷曲病毒以色列分离物（Tylcv-Is）将从病毒感染的女性转跨传递给他们的后代。 Tylcv-Is是一种研究的Begomovirus，并通过B. tabaci的传播进行了详细检查。 Tylcv-Is传输的采集访问周期和接种访问期似乎比典型的持久循环传输模式的特征短得多。 Tylcv-Tyl-Tim的载体传播需要短期潜在的时间，病毒在其昆虫载体中持续并重复。在审查相关研究后，我们提出在特殊类型的持续持续传播模式中B. Tabaci传播了很少的原豚病毒（租赁Tylcv-Is）。需要更多关于其他原毛病的载体传输的研究。

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