Premium
Multi‐generational effects of rice harboring Bph15 on brown planthopper, Nilaparvata lugens
Author(s) -
Li Jie,
Shang Keke,
Liu Jia,
Jiang Tingru,
Hu Dingbang,
Hua Hongxia
Publication year - 2014
Publication title -
pest management science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.296
H-Index - 125
eISSN - 1526-4998
pISSN - 1526-498X
DOI - 10.1002/ps.3560
Subject(s) - brown planthopper , fecundity , biology , nymph , ovary , gene , botany , genetics , medicine , population , environmental health
Abstract BACKGROUND The brown planthopper ( BPH ), Nilaparvata lugens , is one of the most devastating rice pests in Asia. Resistant cultivars are an effective way of managing BPH . Bph15 is a BPH resistance gene and has been introgressed into rice variety Minghui 63 ( MH63 ). The multi‐generational effects of rice line MH63 ::15 (harboring Bph15 ) on BPH were investigated and compared with its parental line MH63 . RESULTS U‐test analysis indicated that, over seven generations, the developmental duration of BPH nymphs was significantly prolonged by MH63 ::15. The results of a two‐way analysis indicated that, over seven generations, MH63 ::15 had significant negative effects on the hatchability, emergence rate, copulation rate, weight of adults and fecundity of BPH , but no significant effects on the survival rate of nymphs or female ratio of BPH . In addition, the development of ovary was significantly retarded by MH63 ::15, and the expression of oogenesis genes were either down‐regulated (three genes) or up‐regulated (one genes) by MH63 ::15 compared with MH63 . CONCLUSIONS After being reared continuously on MH63 ::15 for seven generations, most of the life parameters of BPH were negatively affected by MH63 ::15, especially fecundity and ovary development. These results indicate that MH63 ::15 rice has potential for use in the control of BPH . © 2013 Society of Chemical Industry