摘要
本文报道了马尾松毛虫Dendrolimus punctatus Walker和油松毛虫Dendrolimus tabwlaeformis Tsai et Liu杂交遗传试验的部分结果。研究表明,不论从食性、形态特征、混合配对和单个配对试验的结果来看,油松毛虫和马尾松毛虫应为同一物种。其形态学特征,尤其是外生殖器解剖构造的差异,并未反映出种的特性和种间的生殖隔离。油松毛虫与马尾松毛虫杂交,无论正交或反交,都能产生有生育力的F_1代,F_1代自交产生F_3代,F_2代自交产生F(?)代。但考虑到油松毛虫在我国的分布与油松的分布大体相一致,它与马尾松毛虫在形态学和生态学等方面多少存在着一些差异,因此可认为它是马尾松毛虫的一个亚种,可称为Dendrallmua punctatus tabulaeformis(Tsai et Liu)。
Hybridization experiments were carried out between Dendrolimus punctatus Walker and D. tabulaeformis Tsai et Liu, which have been described as two separate species. The results of our experiments on their feeding habits on host plants, conspecific and interspecific pairings, sex pheromone attraction and hybridization inheritance indicate that they may be regarded belonging to same species. The differences in morphology, especially the structure of external ge-nitalia, did not assume interspecific disparity and there is no real interspecific reproductive isolation. Reciprocal crosses in the two species both gave fertile progenies including the second and third generations. However, some differences in morphology and ecology as well as in geographical distribution between them do exist, especieally the preference for host trees in China. Therefore, Dendrolimus tabulaeformis may be regarded as a subspecies of the Masson pine caterpillar Dendrolimus punctarus Walker, and it is suggested to be nominated as Dendrolimus punctatits tabulaefomits (Tsai et Liu).
出处
《昆虫学报》
CAS
CSCD
北大核心
1992年第1期28-32,共5页
Acta Entomologica Sinica
基金
国家"七五"攻关项目
关键词
杂交
可育性
生殖隔离
松毛虫
Denfrolimus punctatus Walker-Dendrolimus tabulaeformis Tsai et Liu -hybridization-reproductive isolation
