All varieties ( B.napus ) could be used as its restoring lines. Another result of isolocustesting indicated that 902441A, 117A and S45A were controlled by the same genes, and they could be classified in the identical type.
②The recessive genes contained sterility were non allelic between 9012A and S45A,which indicated that there were at least two sites of independent RDSG in rapeseed.
The genetic research of GMS line 821A, which comes from Zhongyou 821, has been done. The results show that the sterility has been controlled by two pairs of recessive genes.
1, a recessive epistatic GMS hybrid variety with double low in Brassica napus L., was bred through the recessive genic male sterile line 20118A which the fertility controlled by 2 recessive duplicate genes and 1 recessive epistatic gene.
he inheritance of short petiole was revealed from nine crosses:(1) The short petiole of D761609 was controlled by two duplicate recessive genes. (2) The short petiole of NJ90L1SP,a new mutant found in 1993,was completely linked with abnormal pulvinus.
Segregation analyses of three crosses between CT-2s and normal fertile parents indicated that the sterility of CT-2s was controlled by two duplicate recessive genes.
The results obtained from the study on the mode of inheritance ofseveral chloroplast characters in tobacco (Nicotiana tabacum, L.), "as tobring the normal green and the white burley varietics into contrast byusing the diallelcross design are summarized as follows. 1. The inheritance of the chlorophyll content was controlled by thenuclear genes, as it was reported fifty more years ago, but the dominanceof Yb1 and Yb2 was incomplete over Yb1 and Yb2 respectively, since thechlorophyll content of the hybrids wa...
Based on the observation of two crosses,a leaf with elongate margin in Brassica napus is determinated by two pairs of recessive genes with duplicate effect and no cytoplasmic influence exists on the expression of the leaf shape The leaf shape may be distinguished from normal leaf shape after appearance of third leaf.It could be used as a new genetic marker.
Studies on inheritance and utilization of the male sterile rapeseed "79. 7"are presented in this paper. The result shows that the rapeseed GMS"79. 7"is a new type of GMS material and its sterility is controlled by two pairs of recessive duplicate genes . And all kinds of varieties (B. napus ) can be used as the restoring sources of the GMS"79. 7".therefore it is valuable to study and utilization.New kinds of low erucic, double-low and yellow-seeded CMS lines of rapeseed (B. napus)have been transferred by th...