摘要
为了明确不同温度和亲代产仔日龄对豌豆蚜子代色型分化的影响,在室内15、22、26℃三个温度条件下,采用离体叶片单头继代饲养法,选取红、绿两种色型豌豆蚜F0~F5代成蚜第2、7、12天所产的1龄若蚜,分别连续诱导观察5代,逐代统计红、绿亲本色型豌豆蚜子代中的红、绿色型豌豆蚜比例。结果表明:豌豆蚜子代色型分化受温度和亲代产仔日龄的影响。在15℃,红色型豌豆蚜易分化出绿色型豌豆蚜;在26℃,绿色型豌豆蚜易分化出红色型豌豆蚜;而在22℃红绿色型豌豆蚜亲本产生的非亲本色型后代比例明显较15和26℃低(P<0.05)。此外,不同亲代产仔日龄对子代色型分化也具有一定的影响。亲本产仔日龄不仅影响子代色型分化比例,而且影响豌豆蚜子代出现色型分化时间的早晚(P<0.05),表明红、绿两种色型豌豆蚜亲本后代开始发生色型分化世代的早晚与同一温度下不同产仔日龄有关。
To clarify the effects of different temperatures and parental reproductive ages on the offspring color morph differentiation,the newly⁃born first⁃instar nymphs of the red and green pea aphid(Acyrthosiphon pisum)on the 2nd,7th,and 12th parental reproductive age from F0-F5 were continuously raised for five generations at three tem⁃peratures(15,22,and 26℃).Results showed that temperature and parental reproductive age had a significant effect on the offspring color morph differentiation.Red color morph A.pisum tended to produce green color morph offsprings at 15℃,while green color morph A.pisum tended to produce red color morph offsprings at 26℃.The proportion of non⁃parental color morph offspring produced by red and green parents at 22℃was significantly lower than that at 15 and 26℃(P<0.05).Furthermore,different parental reproductive age also had a certain effect on the offspring color morph differentiation.The parental reproductive age affected the proportion of color differentiation and the time of color differentiation in the offsprings of pea aphid(P<0.05),indicating that the onset of color dif⁃ferentiation in the offsprings of red and green pea aphid was related to different parental reproductive ages at the same temperature.
作者
刘慧萍
张廷伟
吕宁
刘长仲
LIU Huiping;ZHANG Tingwei;LYU Ning;LIU Changzhong(College of Plant Protection,Gansu Agricultural University/Biocontrol Engineering Laboratory of Crop Diseases and Pests of Gansu Province,Lanzhou 730070,China)
出处
《生态学杂志》
CAS
CSCD
北大核心
2023年第11期2675-2681,共7页
Chinese Journal of Ecology
基金
国家自然科学基金项目(31960227和31960351)资助。
关键词
温度
产仔日龄
豌豆蚜
世代
色型分化
temperature
parental reproductive age
pea aphid
generation
color morph differentiation
