Open AccessIdentification of quantitative trait loci associated with small brown planthopper (Laodelphax striatellus Fallén) resistance in rice (Oryza sativa L.)
Author(s) -
Tuyen Le Quang,
Liu Yuqiang,
Jiang Ling,
Wang Baoxiang,
Wang Qi,
Hanh Than Thi Thu,
Wan Jianmin
Publication year - 2012
Publication title -
hereditas
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.819
H-Index - 50
eISSN - 1601-5223
pISSN - 0018-0661
DOI - 10.1111/j.1601-5223.2011.02231.x
Subject(s) - brown planthopper , biology , quantitative trait locus , oryza sativa , antibiosis , genetics , population , oryza , japonica , botany , gene , bacteria , demography , sociology
F 2 and BC 1 populations derived from the cross between 02428 / Rathu Heenati were used to investigate small brown planthopper (SBPH) resistance. Using the F 2 population, three QTLs for antixenosis against SBPH were located on chromosomes 2, 5 and 6, and accounted for 30.75% of the phenotypic variance; three QTLs for antibiosis against SBPH were detected on chromosomes 8, 9 and 12. qSBPH5‐c explaining 7.21% of phenotypic variance for antibiosis was identified on chromosome 5 using the BC 1 population. A major QTL, qSBPH12‐a1 , explained about 40% of the phenotypic variance, and a minor QTL, qSBPH4‐a , was detected by the SSST method in both the F 2 and BC 1 populations. The QTLs indentified in the present study will be useful for marker assisted selection of SBPH resistance in rice.