ISHS Acta Horticulturae 402: International Symposium on Cultivar Improvement of Horticultural Crops. Part 1: Vegetable Crops
PRELIMINARY STUDY ON THE INHERITANCE OF MALE STERILITY IN CABBAGE LINE 79–399–438 |
| Authors: | F. Zhiyuan, S. Peitian, L. Yumei, Y. Limei, H. Anfu, W. Xiaowu, B. Chunsong |
| Abstract:
Cabbage is one of the important vegetables, andthe heterosis has been used in production for many years throughout the world. In order to get valuable male sterile lines in its heterosis breeding, much attention has been paid to the study of sterility. Malesterile mutants controlled by nuclear recessive genes were foundsuccessively (Cole, K. 1959, Borchers, E.A. 1966, Dickson, M.H. 1970, Niuwhof, M. 1961, Sampson, D.R. 1966 etc). However, it was difficult to utilixe them because of the absence of maintainers. By crossing cauliflower with Brassica nigra, Pearson, H.J. got genecytoplasmic male sterility and the cytoplasm was introduced into cabbage. Unfortunately, it was related with suppressed nectary developmant. Radish cytoplasmic male sterility was transfered into cabbage by Bannerot, H. in 1974, and in the fourth generation of the backcross, male sterile cabbage plants with normal chromsome number (2n=18) and R-cytoplasm were obtained. The utilization was also encountered by chlorosis in low temperature. Many reports have proposed the methods of protoplasm fussion to overcomethis shortage. In our work, different male steriles wet found in natural cabbage population and the preliminary studies showed a pair of dorminantgenes controlling the male sterility in 79–399–3. A male sterile line 92–438 was developed with the percentage of male sterile plants up to 100%. | |
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