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normal leaf color
相关语句
  叶色正常
     PRN 2 had normal leaf color and the other three showed different degrees of chlorophyll deficiency at low temperature.
     在低温下PRN 2叶色正常 ,其余 3株幼叶表现不同程度缺绿。
短句来源
  “normal leaf color”译为未确定词的双语例句
     The segregation rate of plantswith normal leaf color and plants with purple leaf in F 2 -population fittedinto 13:3 or 55:9. The F 1 -hybirds of the CN-pl and some wide compatible varieties also showed significant hcterosis.
     F2群体中绿叶与紫叶之比为13∶3、55∶9,符合二至三对基因的分离模式。 结果表明:一般正常绿叶稻品种均带有该紫叶抑制基因〔I-pl(t)〕,用CN-pl作母本与几个广亲和品种杂交,F1表现出明显的杂种优势。
短句来源
     One indica rice (CN-pl) with purple leaf was confirmed to have specificity for genetics of purple leaf, the expression of purple leaf in the CN-pl was restrained by the inhibitor gene [I-pl(t)] involved in most of indica and japonica rice with normal leaf color. The F 1 -hybirds performed normal leaf color.
     利用中国水稻研究所保存的一份籼型紫叶稻(CN-pl)分别与正常绿叶籼、粳稻杂交,发现该紫叶稻的叶色遗传具有特异性:即杂种F1不表现紫色而呈绿色。
短句来源
  相似匹配句对
     On "Leaf"
     说“葉子”
短句来源
     Then F is normal in D.
     则F在D上正规.
短句来源
     V. Leaf and A.
     V.Leaf和A.
短句来源
     Normal Mode
     简正模式
短句来源
     The leaf regained normal structure after correcting iron deficiency.
     进行缺铁黄化矫治后 ,叶片结构恢复正常。
短句来源
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Chlorophyll mutants of different type were obtained from indica type temperature sensi-tive genic male·sterile rice(cv. 2177S )by using“Co γ-rays irradiation. The total chloro-phyll mutation frequency reached to 0.26%in M2 generation. However only about 4. 50%of these mutants could survived.Among them,33 heritable chlorophyll mutant lines wereeasily distinguished,and were screened and studied.The mutants either showed chlorosis oryellowing or expressed only at seedling period or persisted all growth cycle. The...

Chlorophyll mutants of different type were obtained from indica type temperature sensi-tive genic male·sterile rice(cv. 2177S )by using“Co γ-rays irradiation. The total chloro-phyll mutation frequency reached to 0.26%in M2 generation. However only about 4. 50%of these mutants could survived.Among them,33 heritable chlorophyll mutant lines wereeasily distinguished,and were screened and studied.The mutants either showed chlorosis oryellowing or expressed only at seedling period or persisted all growth cycle. The expressionof mutant character was stable under different environment.It is suggested that they are use-ful as the marker traits in two-line hybrid rice.Moreover,the agreconomical traits of most ofthese lines changed in different levels compared with the parent line 2177S.Every mutationline seemed to be controlled by one recessive gene as the F1 plants of reciprocal crosses be-tween mutant and 2177S showed normal leaf color. And the ratio of green plants/mutantplants was 3:1 in the segregated F2 population.

用60Coγ射线辐照粑型温敏核不育系2177S,获得了一批常见的叶绿素突变体。M2代按苗计,叶绿素总突变频率为0.262%,其中只有4.50%可以存活并遗传,从中筛选出33个综合性状优良的籼型温敏核不育叶绿素突变系。经鉴定,这些叶绿素突变受基因控制,比较稳定,有的只在苗期表达并逐渐转为正常,有的则在全生育期表达。与2177S相比,农艺性状都有不同程度变化,但温敏不育特性基本不受影响。遗传分析表明,所有的突变体与亲本正反交时,杂种F1均为绿色植株,杂种F2群体中,正常绿色株与对应叶绿素突变株分离比值符合3:1。证明这类突变是由1对隐性细胞核基因所控制。

One indica rice (CN-pl) with purple leaf was confirmed to have specificity for genetics of purple leaf, the expression of purple leaf in the CN-pl was restrained by the inhibitor gene [I-pl(t)] involved in most of indica and japonica rice with normal leaf color. The F 1 -hybirds performed normal leaf color. The segregation rate of plantswith normal leaf color and plants with purple leaf in F 2 -population fittedinto 13:3 or 55:9. The F 1 -hybirds of the CN-pl and some wide...

One indica rice (CN-pl) with purple leaf was confirmed to have specificity for genetics of purple leaf, the expression of purple leaf in the CN-pl was restrained by the inhibitor gene [I-pl(t)] involved in most of indica and japonica rice with normal leaf color. The F 1 -hybirds performed normal leaf color. The segregation rate of plantswith normal leaf color and plants with purple leaf in F 2 -population fittedinto 13:3 or 55:9. The F 1 -hybirds of the CN-pl and some wide compatible varieties also showed significant hcterosis. If the special genetic resource was applied to “two line hyhind rice”, the false hybrid can be easily identified according to the leaf color at the seedling stage.

利用中国水稻研究所保存的一份籼型紫叶稻(CN-pl)分别与正常绿叶籼、粳稻杂交,发现该紫叶稻的叶色遗传具有特异性:即杂种F1不表现紫色而呈绿色。F2群体中绿叶与紫叶之比为13∶3、55∶9,符合二至三对基因的分离模式。结果表明:一般正常绿叶稻品种均带有该紫叶抑制基因〔I-pl(t)〕,用CN-pl作母本与几个广亲和品种杂交,F1表现出明显的杂种优势。CN-pl这种遗传特异性用于两系杂交稻制种,在苗期即可根据叶色,有效的鉴别因化学杀雄不彻底或光敏不育系育性不稳产生的假杂种,以保证杂交F1纯度。

Crosses of Ogura CMS Brassica campestris var. purpuraria×Raphanus sativus×Brassica napus were made and four hybrids were produced. One plant (PRN 1) was mosaic with yellow and milk white flowers and some flowers had both yellow and white petals. The others (PRN 2, 3, 4) had white flowers. PRN 4 had degenerated anthers, the other three had three to six anthers and could produce some pollens, but the pollens of PRN 2 were unstainable by I 2 KI solution. PRN 2 had four normal honey glands,...

Crosses of Ogura CMS Brassica campestris var. purpuraria×Raphanus sativus×Brassica napus were made and four hybrids were produced. One plant (PRN 1) was mosaic with yellow and milk white flowers and some flowers had both yellow and white petals. The others (PRN 2, 3, 4) had white flowers. PRN 4 had degenerated anthers, the other three had three to six anthers and could produce some pollens, but the pollens of PRN 2 were unstainable by I 2 KI solution. PRN 2 had four normal honey glands, PRN 1 and PRN 3 had two, and PRN 4 had none. PRN 2 had normal leaf color and the other three showed different degrees of chlorophyll deficiency at low temperature. The chromosome number of PRN 1 was 2n=38 and had the mean chromosome paring configuration of 14 67Ⅰ+10 07Ⅱ+1 06Ⅲ, and its chromosome set constitution might be AACR. This chromosome constitution may be due to the fertilization of female gamete of n=19 (AR) with male gamete of n=19 (AC) from B. napus. The occurrence of mosaic flower color in this plant may be attributed to the chromosome abnormalities caused by wide hybridization, such as chromosome deficiency and the formation of chromosome fragments and chromosome bridges. The chromosome number of PRN 2 was 2n=35 and the mean chromosome paring configuration was 13 89Ⅰ+8 33Ⅱ+1 33Ⅲ+0 11Ⅳ. The chromosome number of PRN 3 was 2n=33 and the mean chromosome paring configuration was 14 00Ⅰ+7 82Ⅱ+1 00Ⅲ+0 09Ⅳ. The chromosome number of PRN 4 was not determined as there was no pollen mother cell formation. Chromosome bridges and laggards were observed in PRN 1~3. Some seeds were harvested from PRN 1~ 3 but none was harvested from PRN 4 when backcrossed with B.napus . It seems possible for us to overcome the chlorophyll deficiency and honey gland abnormality and restore the male fertility in Ogura CMS by introduction of the nucleus of R.sativus into this cytoplasmic male sterile line.

以OguraCMS紫菜苔×萝卜杂种F1(AR ,2n =19)为母本 ,以甘蓝型油菜 (AACC ,2n =38)为父本进行杂交 ,获得了 4棵杂种植株。其中 1株 (PRN 1)的花色为嵌合体 ,该植株上的花多为黄色 ,但是也有乳白色花 ,另外还有 1朵花甚至 1个花瓣上同时具有黄色和白色区域 ,其余 3株 (PRN 2、 3、 4 )都开白花。PRN 4的花药开花前退化 ,其余 3株都可以看到 3~ 6枚花药 ,能够产生部分花粉 ,但是PRN 2的花粉不能被I2 KI溶液染色。PRN 2具有 4个蜜腺 ,PRN 1和PRN 3具有 2个蜜腺 ,PRN 4无可见蜜腺。在低温下PRN 2叶色正常 ,其余 3株幼叶表现不同程度缺绿。PRN 1的染色体数目为 2n =38,染色体平均配对构型为 14 6 7Ⅰ +10 0 7Ⅱ +1 0 6Ⅲ ,其染色体组构成可能是AACR ;PRN 2的染色体数目为 2n =35 ,染色体平均配对构型为 13 89Ⅰ +8 33Ⅱ +1 33Ⅲ +0 11Ⅳ ,PRN 3的染色体数目为2n =33,染色体平均配对构型为 14 0 0Ⅰ +7 82Ⅱ +1 0 0Ⅲ ...

以OguraCMS紫菜苔×萝卜杂种F1(AR ,2n =19)为母本 ,以甘蓝型油菜 (AACC ,2n =38)为父本进行杂交 ,获得了 4棵杂种植株。其中 1株 (PRN 1)的花色为嵌合体 ,该植株上的花多为黄色 ,但是也有乳白色花 ,另外还有 1朵花甚至 1个花瓣上同时具有黄色和白色区域 ,其余 3株 (PRN 2、 3、 4 )都开白花。PRN 4的花药开花前退化 ,其余 3株都可以看到 3~ 6枚花药 ,能够产生部分花粉 ,但是PRN 2的花粉不能被I2 KI溶液染色。PRN 2具有 4个蜜腺 ,PRN 1和PRN 3具有 2个蜜腺 ,PRN 4无可见蜜腺。在低温下PRN 2叶色正常 ,其余 3株幼叶表现不同程度缺绿。PRN 1的染色体数目为 2n =38,染色体平均配对构型为 14 6 7Ⅰ +10 0 7Ⅱ +1 0 6Ⅲ ,其染色体组构成可能是AACR ;PRN 2的染色体数目为 2n =35 ,染色体平均配对构型为 13 89Ⅰ +8 33Ⅱ +1 33Ⅲ +0 11Ⅳ ,PRN 3的染色体数目为2n =33,染色体平均配对构型为 14 0 0Ⅰ +7 82Ⅱ +1 0 0Ⅲ +0 0 9Ⅳ。PRN 4的染色体数目未能确定。与甘蓝型油菜回交后PRN 1~ 3植株各自产生了一定数量的种子 ,而PRN 4则未产生种子。对这些杂种及其后代的遗传及育种意义进行了讨论

 
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