NHỮNG GHI NHẬN BAN ĐẦU VỀ ĐA DẠNG DI TRUYỀN QUẦN THỂ RẦY NÂU HẠI LÚA Ở VIỆT NAM
NHỮNG GHI NHẬN BAN ĐẦU VỀ ĐA DẠNG DI TRUYỀN QUẦN THỂ RẦY NÂU HẠI LÚA Ở VIỆT NAM
Phylogenic diversity of rice brown plant hoppers in Vietnam
The Mitocholdrial cytochrome oxidase subunit 1 (COI) gene was used to analyze preliminarily the genetic diversity of the brown planthopper (BPH) population in Vietnam. Totally 38 partial COI sequences were analyzed and a phylogenic tree was built. These sequences are including 31 sequences of BPH individuals collected in rice fields on rice and on the grass Leersia hexandra from different provinces in Vietnam; 4 sequences from GenBank of 4 different species of rice hoppers (Nilaparvata lugens, Sogattela furcifera, Laodelphax striatellus and Nephotettix virescens); and three sequences of N. lugens, N. muiri and N. bakeri provided by a Chinese scientist. The phylogenic tree shows that BPH population of Vietnam separates into three different clades with high boostrap values. Among 31 Vietnam sequences, 28 sequences are stay in the same clade with N. lugenes (both of Chinese and GenBank sequences), one sequence stays in the same clade with N. muiri and two sequences stay in the same clade with N. bakeri. This is the first report of N. muiri and N. bakeri and their COI sequences in Vietnam.