ghd glätteisen Streptomycin and other antibiotics

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Streptomycin and other antibiotics induced Male Sterility in Wheat

Streptomycin male sterility of wheat genetic mutation analysis of streptomycin in 1993 and 1994, male sterile mutant strain CAU 92 backcross progeny produced preliminary results showed that the mutation of streptomycin in the Agricultural University 92 out of the recessive genic male sterility mutation, some may be affected by a single mutant gene control (Table 3), but the sterile plants of the recessive mutant gene on the number of allelic and not with other recessive The other eleven education {degree of Beijing Agricultural left foot needs to be further deep research. Investigate the source of the same pedigree segregating populations in fertility and fertile plants and sterile plants of agronomic traits Agricultural University 92, the results show that the characteristics of fertility in addition, other traits were not significantly different; sterility in flowering plants and can be taken anthers of sterile plants,[link widoczny dla zalogowanych], check the pollen fertility and abortion in the period and found that mutation of the sterile plants infected abortion abortion rates slightly higher than during the round fails,[link widoczny dla zalogowanych], the male sterile plants aborted more thorough than the outcrossing rate (Table 4). Table 4 Farmers too 92BF status male fertility segregation Note: F male fertility. s Male 8 3338 Beijing Agricultural University Agricultural Sciences on the mutation of the male sterile plants backcross analysis showed that: The mutant 93-333863S after 4 consecutive backcross sterility has been basically stable. Autumn of 1994 BC; on behalf of the strain (6) the performance of all the sterile, self-seed setting rate (25 spikes) the average is 9.03; winter, plus representatives of the greenhouse is completely sterile (self-seed setting rate was 0); continue to back AC BC on behalf of all (12) showed sterile, self-seed setting rate is 0.30. Normal pistil development,[link widoczny dla zalogowanych], continue to backcross 6 ear, backcross seed set was 68.66. From this,[link widoczny dla zalogowanych], the strains developed into a promising new type of cytoplasmic male sterile lines of the discussions with antibiotics such as streptomycin mutagen on wheat varieties produced mostly male sterility can be induced mutations, but different genes type of response to antibiotics there is a significant difference. In the recovery of the genetic background, failed to induce male sterility mutation; Maintainer completely male sterile plants of different varieties of mutation rates there are significant differences, such as the Agricultural University Agricultural University 95, 92 and an average mutation frequency 4 �� 10, while the Agricultural University 3338,[link widoczny dla zalogowanych], compared with 0.76 �� 10. Agents with radiation and chemical mutagenesis have physical and chemical factors on wheat male sterile mutants, mutants in the control of nuclear gene-based single recessive gene, fewer opportunities to obtain CMS, but with the same genotypes were repeated the same treatment is difficult to male sterility. Streptomycin and other antibiotics on wheat with different genotypes in different years showed good reproducibility, and can also induce male sterility recessive nuclear gene mutation in streptomycin induced male sterility Agricultural University 3338 studies have shown that it can induce cytoplasmic male sterility mutation is likely to become a new male sterile cytoplasm, which for the creation of new male sterile lines of wheat and enriched wheat cytoplasm type provides a new way. The mechanism for deepening the research on male sterility of wheat advantages for utilization of new male sterile material will play an active role.
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