大尾须卵翅蝗和犁须卵翅蝗的杂交试验初报

A Preliminary Report on the Crossbreed between Caryanda macrocercusa and C. cultricerca

对大尾须卵翅蝗和犁须卵翅蝗开展室内受控杂交实验。结果显示,在正交和反交情况下均能产生有生育力的F1代,F1代自交产生F2;F2表征同F1,二者示差特征介于亲本之间。上述结果表明大尾须卵翅蝗和犁须卵翅蝗之间尚未形成生殖隔离,是同一物种的不同亚种;其示差性状的遗传未表现单基因遗传规律中的显隐关系特点。

An indoor hybridization experiment by forced mating between two grasshoppers:Caryanda macrocercusa and C.cultricercawere carried out.Results showed that the reciprocal crosses in the two species could produce fertile progeny F1;these differentialcharacters of F1same as F2were intermediate between the parents.The results indicated that the reproductive isolation between C.macrocercusa and C.cultricerca was not yet formed.The two nominal species were the different subspecies of the same species.Theheredity of the differential characters didn't conform to the single-gene dominant genetic law.