Removal or component reversal of local geomagnetic field affects foraging orientation preference in migratory insect brown planthopper Nilaparvata lugens.
Removal or component reversal of local geomagnetic field affects foraging orientation preference in migratory insect brown planthopper Nilaparvata lugens.
复制标题
局部地磁场的去除或成分逆转影响迁徙昆虫褐飞虱的觅食方向偏好
作者：
Zhang Y;Pan W
褐飞虱Nilaparvata lugens（N.褐飞虱（Lugens）每年春季迁徙至东北亚，秋季返回东南亚。然而，它们在飞行过程中的定向和导航机制在很大程度上仍然未知。地磁场（GMF）是动物（包括N。lugens），但所涉及的磁罗盘尚未完全确定。本文研究了转基因食品对红腹锦鸡儿觅食方向选择的影响。通过去除或逆转当地转基因食品的成分。同时，我们研究了铁硫簇组装体1（IscA1），一个假定的磁感受器的组成部分，在觅食的方向偏好的N。在受控磁场下通过RNA沉默（RNAi）使褐飞虱死亡。我们发现，近零磁场（NZMF）或GMF的垂直反转可以导致N。褐飞虱丧失了觅食定向选择性，表明正常水平的GMF（无论是强度还是倾向）对褐飞虱的觅食定向是必不可少的。lugens。此外，IscA1基因的敲除也影响了黑腹滨藜的觅食定向选择性。lugens，指出了IscA1在昆虫感知转基因食品变异中的潜在作用。这些结果表明，觅食方向偏好与GMF有关，并揭示了新的见解之间的关系，IscA1和磁敏感性机制在N。lugens。
Migratory brown planthopper Nilaparvata lugens (N. lugens) annually migrates to Northeast Asia in spring and returns to Southeast Asia in autumn. However, mechanisms for orientation and navigation during their flight remain largely unknown. The geomagnetic field (GMF) is an important source of directional information for animals (including N. lugens), yet the magnetic compass involved has not been fully identified. Here we assessed the influences of GMF on the foraging orientation preference of N. lugens by removing or component reversal of local GMF. At the same time, we examined the role of iron-sulfur cluster assembly1 (IscA1), a putative component of magnetoreceptor, in the foraging orientation preference of N. lugens under the controlled magnetic fields by RNA silencing (RNAi). We found that the near-zero magnetic field (NZMF) or vertical reversal of GMF could lead to N. lugens losing the foraging orientation preference, suggesting that a normal level of GMF, in the way of either intensity or inclination, was essential for the foraging orientation of N. lugens. Moreover, the gene knockdown of IscA1, also affected the foraging orientation preference of N. lugens, pointing out a potential role of IscA1 in the insects’ sensing of variation in the GMF. These results suggested a foraging orientation preference is associated with the GMF and revealed new insights into the relationship between the IscA1 and magnetosensitivity mechanism in N. lugens.
登录
查看更多内容
影响因子：
56.9
作者：
GOULD, JL;KIRSCHVINK, JL;DEFFEYES, KS
通讯作者：
DEFFEYES, KS
影响因子：
41.2
作者：
Qin, Siying;Yin, Hang;Xie, Can
通讯作者：
Xie, Can
影响因子：
3.4
作者：
Mandilaras, Konstantinos;Missirlis, Fanis
通讯作者：
Missirlis, Fanis
夜间迁徙褐飞虱 Nilaparvata lugens 中存在生物磁性颗粒的证据。
影响因子：
4.6
作者：
Pan W;Wan G;Xu J;Li X;Liu Y;Qi L;Chen F
通讯作者：
Chen F
影响因子：
4.6
作者：
Friis I;Sjulstok E;Solov'yov IA
通讯作者：
Solov'yov IA