Effect of barley chromosome addition on the susceptibility of wheat to feeding by a gall-inducing leafhopper
Effect of barley chromosome addition on the susceptibility of wheat to feeding by a gall-inducing leafhopper
复制标题
DOI：
10.1007/s00114-011-0846-4
复制
发表时间：
2011-11-01
影响因子：
--
通讯作者：
Tokuda, Makoto
中科院分区：
文献类型：
--
作者：
Kumashiro, Shun;Matsukura, Keiichiro;Tokuda, Makoto
玉米橙子叶蝉Cicadulina bipunctata广泛分布于东半球的热带和亚热带地区，以各种禾本科植物为食。在一些国家，叶蝉被认为是玉米的重要害虫。成虫和成虫的C. bipunctata在包括小麦、水稻和玉米的许多谷类作物上诱导以叶脉严重肿胀为特征的生长发育迟缓和虫瘿，但在大麦上不诱导。为阐明C.以6个大麦二体附加系（2 H-7 H）为材料，研究了大麦（cv. Betzes）染色体附加对小麦（cv.中国春天），以喂养的叶蝉。C.饲养bipunctata在2 H、3 H、4 H和5 H显著抑制生长，而在6 H和7 H不显著。3 H和5 H的诱瘿程度分别显著弱于中国春和中国春。这些结果表明，大麦6 H和7 H以及3 H中分别存在抗生长迟缓和抗瘿诱导的基因。5 H被认为是有用的，为未来的试验研究的虫瘿诱导的机制，这是因为高的敏感性，由C.二点的在6个附加系和中国春中未检测到生长迟缓程度与瘿的诱导之间的显著相关性。这表明，这两种症状是独立的现象，虽然都是由C。二点的
The maize orange leafhopper Cicadulina bipunctata is distributed widely in tropical and subtropical regions of the Old World and feeds on various Poaceae. The leafhopper is recognized as an important pest of maize in several countries. Adults as well as nymphs of C. bipunctata induce growth stunting and galls characterized by the severe swelling of leaf veins on many cereal crops including wheat, rice, and maize, but do not on barley. To clarify the mechanism of growth stunting and gall induction by C. bipunctata, we used six barley chromosome disomic addition lines of wheat (2H-7H) and investigated the effect of barley (cv. Betzes) chromosome addition on the susceptibility of wheat (cv. Chinese Spring) to feeding by the leafhopper. Feeding by C. bipunctata significantly stunted the growth in 2H, 3H, 4H, and 5H, but did not in 6H and 7H. The degree of gall induction was significantly weaker and severer in 3H and 5H than in Chinese Spring, respectively. These results suggest that barley genes resistant to growth stunting and gall induction exist in 6H and 7H, and 3H, respectively. 5H is considered to be useful for future assays investigating the mechanism of gall induction by this leafhopper because of the high susceptibility to the feeding by C. bipunctata. Significant correlation between the degrees of growth stunting and gall induction was not detected in the six chromosome addition lines and Chinese spring. This implies that these two symptoms are independent phenomena although both are initiated by the feeding of C. bipunctata.