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These male sterile transgenic plants with TA29 Barnase gene have the same horticultural characters which can be also inherited steadily by plants in next generation as non transgenic ones. But their flowers bear fully catagenetic stamen lacking pollens, normal fragrant nectaries and strong pistils able to receive pollens from other plants or different cultivars and set seeds. At the meantime, the sterility i...

带有TA 2 9 Barnase基因的雄性不育植株的园艺学性状与未转化植株相同,并且其性状在后代中稳定不变;不育植株的花朵表现雄蕊完全退化,但蜜腺和雌蕊健全,能接受外来花粉,杂交结实率较高;同时,雄性不育植株的不育性在后代中出现分离,不育株率占 12 。5%~ 85.7%;此外,不育性状具有镶嵌性

Two Erianthus arundinaceum BC1 clones Ya01-21 and Ya01-36 were studies by the means of chromosome number calculate, karyotype analysis and ITS identify.

本文对两个斑茅BC1后代,崖城01-21和崖城01-36进行ITS签定和染色体计数与核型分析,以探讨斑茅后代的染色体遗传行为。

The colony morphology, growth rate and homothallic characters were all steadily inherited in both single-zoospore and single-oospore progenies,which indicated that the genetic factors of controlling the three characters were homozygous.

结果表明,菌落形态、生长速率和同宗配合性状在单孢后代可稳定遗传,控制上述性状的遗传因子是纯合的;大豆疫霉菌的游动孢子产生能力在单孢后代发生连续性变异,表明这种性状可能是数量遗传性状,也可能控制这种性状的基因为杂合基因或细胞质遗传因子。

Maize DNA had been integrated into rice and resulted inobvious variations in proteins and physiologicalcharacteristics.

本研究表明,玉米DNA浸泡水稻干胚的后代材料中整合入了供体DNA片段,后代的蛋白质和生理生化特性发生了明显变异。

The character of flower colour and high nicotine conversion inherited steadily,the average nicotine content of their offsprings decreased,while nornicotine content increased significantly.

通过对发现的5株白肋烟B37花色突变株后代的连续观察与研究,结果表明,5株白花突变株当代均为高烟碱转化株;随着世代的增加,白花后代群体花色遗传稳定,高转化率性状更趋于纯合;烟株群体的平均烟碱含量明显下降,降烟碱则明显上升,烟株群体生物碱表现为以降烟碱为主。

The observed cell showed signal spots and their location in different region of chromosomes in different lines.The experimental results mentioned above demonstrated that Rhizophora apiculota DNA have been introduced into tomato and integrated with tomato genome. The obvious improvement in the salt tolerance among their progenies was most probably related with the variation of their genome.

通过以上细胞生物学和分子生物学的研究表明,外源DNA已导入普通番茄,与其基因组整合并遗传给后代,外源红树DNA片段的渗入导致了转化植株在形态、细胞结构以及分子水平上的变异,转化番茄后代耐盐能力的增强可能与番茄基因组的这种变化有关。

All the offspring will be Ay/at alright, but because the male had a pattern of rufous polygenes that determined his tan points should be medium toned and the female the same medium toned Gold; the offspring could be anything from Red (having randomly received lots of red checkers from both parents) to Cream (having randomly received lots of white checkers from both parents).

是也不是。所有后代的基因型都是Ay/at是对的,但因为公獒还有一组&修改基因&即红褐色因子群决定他的金色适中,母獒也一样有着适中的金色;因此他们的后代可能从奶酪色(从父母得到了较多的白色因子)到红色(从父母得到了较多的红色因子)都有。

There were no significant differences (P〉 0.05) between the four mutants and Chy-1 in infection of sclerotia of S.

在没有杀菌剂存在的情况下,这些突变菌株的转代培养后代和感染核盘菌菌核后产生的分生孢子后代仍具有抗性。

The first-born, second-born and third-born breeding sows were separated to be fed, after that they were artificially fecundated. The progeny swinery of the first-born and more than the second-born breeding sows were separated to be fed and the annual production litter size and pathological change of local pneumonia for breeding sows etc.

方法]将头胎、二胎、三胎母猪分开饲养后进行人工授精,并将一胎母猪后代猪群与二胎以上母猪后代猪群实行隔离饲养,记录每头母猪年产仔数和地方性肺炎病变等数据。

That sex ratio will befavored which maximizes the number of descendants an indi vidual will have andhence the number of gene copiestransmitted.

那种性别比例能在最大程度上增加一个个体所能拥有的后代数量,并因此能在最大程度上增加所传递到后代身上去的基因复制品的数量。

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In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是,在否定句或疑问句里,这种带有"do"的方法表达的效果却没有什么强调的意思。

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