Wilton D P, Jakob W L
Division of Vector-Borne Viral Diseases, Centers for Disease Control, Fort Collins, CO 80522-2087.
J Am Mosq Control Assoc. 1985 Jun;1(2):174-7.
The effect of temperature on Culex pipiens pipiens, Cx. p. quinquefasciatus, and reciprocal hybrids of the two was investigated by monitoring the DV/D ratios of these stocks maintained at 15.6 degrees C and 23.9 degrees C over 10 generations. Little variation occurred in mean values of the parental subspecies at either temperature. At 23.9 degrees C, the mean ratios for both hybrid lines rose from an intermediate value to a level well above the accepted minimum for Cx. p. quinquefasciatus (0.4), and the proportion of individuals identifiable as that subspecies increased 16-fold. At 15.6 degrees C, hybrid mean DV/D ratios decreased to or below the pipiens maximum value (0.2), and the proportion of pipiens individuals increased 4 to 5 times. The need to monitor closely the status of Cx. pipiens hybrid colonies is evident.
通过监测在15.6摄氏度和23.9摄氏度下饲养10代的这些种群的DV/D比率,研究了温度对致倦库蚊、淡色库蚊及其二者的正反交杂种的影响。在这两种温度下,亲代亚种的平均值几乎没有变化。在23.9摄氏度时,两个杂交系的平均比率从中间值上升到远高于致倦库蚊公认最小值(0.4)的水平,可鉴定为该亚种的个体比例增加了16倍。在15.6摄氏度时,杂种的平均DV/D比率降至或低于淡色库蚊的最大值(0.2),淡色库蚊个体的比例增加了4至5倍。密切监测淡色库蚊杂交群体的状况很有必要。