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- Meanwhile,backcrossing females 3n AASCC (F 1- similar to ASCC) to faternal parent 3n=156 ASCC could produce first backcross generation (B 1 ASCC being very similar to faternal parent ASCC). 它与父本异育银鲫回交可以产生回交子一代 (B1)。 雄核发育异育银鲫、回交子一代异育银鲫与父本异育银鲫非常相似。
- Meanwhile,backcrossing females 3n AASCC (F1- similar to ASCC) to faternal parent 3n=156 ASCC could produce first backcross generation (B1 ASCC being very similar to faternal parent ASCC). 它与父本异育银鲫回交可以产生回交子一代(B1)。雄核发育异育银鲫、回交子一代异育银鲫与父本异育银鲫非常相似。
- the first backcross generation 回交一代
- first backcross generation 第一回交子代,回交一代
- No significant differences in studied traits was obssrved among the groups with various genes,controlling erucic acid content(EAC)in the backcross generation. 回交世代不同芥酸含量的各组在产量和大多数其他性状上没有明显差异。
- The resistant level was declined with increasing of backcross generations. (2)在回交后代中,抗性水平逐代降低。
- The variance componentof cross and backcross generations of quantitative character controlled by multigenes is studied on condition of chromosome translocation. 研究了染色体易位情况下,多基因控制的数量性状杂交及回交世代的方差组成。
- The ratios of the sterile plants with the fertile plants in their F1, F2 generations, and their reciprocal backcross generations with the male sterile plants were calculated. 同时,以具有正常细胞质的自交系为母本,育性完全恢复的测交F1植株为父本进行反交,对其反交的F1及F2进行育性观察分析。
- The data that the backcrossed generation of F1 with the resistant parent were resistant without susceptible segregants is not indicated here. F1与抗病亲本回交后代对接种菌株均表现抗病反应,数据未列出。
- Leaving her first job was a watershed in her life. 辞去她的第一份工作是她生活中的一个转折点。
- Cook the meat quickly at first to seal in the juices. 一开始要大火烧肉,以便保存肉汁。
- In the word "mother" the stress is on the first syllable. 在"mother"这一字里,重音在第一个音节上。,在"mother"这一字里,重音在第一个音节上。
- His illness was more serious than the doctor first thought. 他的病较医生原来以为的更严重。
- Passengers with cars must embark first. 带汽车的乘客必须先上船。
- Bob teed off on the new pitcher's first delivery. 鲍勃猛击那新投手所投的第一个球。
- Alarmed at the first sound, we hit the dirt. 第一声警报一响我们就迅速卧倒。
- She struck up the first carol on the grand piano. 她在那架大钢琴上演奏起第一支颂歌。
- Insect-resistant identification of the second backcross generation of Bt transformed gene in maize 转Bt基因玉米回交二代的抗虫性鉴定
- He picked a winning number on the first draw. 他第一次便抽到一个中奖号码。
- Slop out the waste basins first when you get up. 起床的第一件事是把例盆倒了。