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Genetic analysis of the wing‐form determination of the small brown planthopper, Laodelphax striatellus (Hemiptera: Delphacidae)
Author(s) -
Mori Kiyoko,
Nakasuji Fusao
Publication year - 1990
Publication title -
population ecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.819
H-Index - 59
eISSN - 1438-390X
pISSN - 1438-3896
DOI - 10.1007/bf02512563
Subject(s) - wing , biology , heritability , delphacidae , selection (genetic algorithm) , brown planthopper , hemiptera , mendelian inheritance , evolutionary biology , genetics , homoptera , botany , pest analysis , artificial intelligence , computer science , gene , engineering , aerospace engineering
Summary The mechanism of the genetic control of wing form determination of the small brown planthopper Laodelphax striatellus was analyzed by selection and crossing experiments. The selection experiment for brachypterous and macropterous forms for 13 generations showed that the wing form is under some genetic control. The crossing experiment showed that the wing form polymorphism was not a simple Mendelian character but was under polygenic control. The data from the crossing experiment were applied to the liability method for the quantitative genetics by Falconer (1981). The analysis suggested that wing form determination was a threshold character under polygenic control, and the estimated minimum number of loci concerned was 2.07. The realized heritability estimated from the data of selection experiment was 0.36 for macroptery. On the other hand, the heritability in broad sense estimated on the basis of the variance of F 1 and F 2 in crossing experiment was 0.81.