Comparison of the Feeding Behavior and Genetics of Beet Leafhopper, Circulifer tenellus, Populations from California and New Mexico
Comparison of the Feeding Behavior and Genetics of Beet Leafhopper, Circulifer tenellus, Populations from California and New Mexico
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DOI：
10.3958/059.035.0303
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发表时间：
2010-09-01
影响因子：
0.4
通讯作者：
Creamer, Rebecca
中科院分区：
文献类型：
--
作者：
Hudson, Andrinae;Richman, David B.;Creamer, Rebecca
虽然寄主植物的生活史和可能的迁徙已经被研究了多年，但人们对不同地区的叶蝉种群之间的差异知之甚少。因此，我们比较了加利福尼亚和新墨西哥州的甜菜叶蝉种群的形态、摄食行为和遗传学。在不同地区采集的叶蝉线粒体细胞色素氧化酶（mtcoi）区核酸序列中检测到4个同义突变，但在新墨西哥州采集的叶蝉在自助餐厅式选择测试中，两州的叶蝉的摄食偏好不同，在20 d的摄食期，加州叶蝉的摄食偏好差异最大（875%）新墨西哥州叶蝉在不同寄主上的分布更为均匀，如小红花（46%）、甜菜（18%）、俄罗斯蓟（15.3%）和红根藜（12.3%）。在2天的取食周期内，两州的叶蝉平均选择甜菜，这反映了它们比大多数其他寄主更愿意在甜菜上定居在形态学上，它们表现出遗传和寄主摄食偏好的差异
The beet leafhopper Circulifer tenellus (Baker) transmits curtoviruses that cause disease losses to several crops and many weeds in the western United States While the host plants life history and possible migrations have been studied for many years little is known about differences between leafhopper populations from different areas Therefore beet leafhopper populations from California and New Mexico were compared as to their morphology feeding behavior and genetics The crown wing venation, and male genitalia were indistinguishable among the leafhoppers collected from different locations Four synonymous mutations were detected in the nucleic acid sequences of the mitochondrial cytochrome oxidase (mtcoi) region of leafhoppers between the states but not among specimens collected from New Mexico Feeding preferences of the leafhoppers from the two states differed when presented with cafeteria-style choice tests With a 20-day feeding period most (87 5%) of California leafhoppers were found on sugarbeets Beta vulgaris L while New Mexico leafhoppers were more evenly distributed on a variety of hosts such as Kochia sp (46%) sugarbeets (18%) Russian thistle Salsola tragus L (15 3%) and red root pigweed Amaranthus retroflexus L (12 3%) With a 2-day feeding period leafhoppers from both states equally chose sugarbeets reflecting their willingness to settle on sugarbeets over most other hosts The results suggested that while the beet leafhopper populations were similar morphologically they showed difference in genetics and host feeding preferences