进行了黄瓜单（双单）倍体染色体加倍试验。
The chromosome doubling of haploid and double haploid in cucumber was studied.
同源四倍体水稻是二倍体水稻染色体加倍形成的。
Autotetroploid rice has double genome compared with diploid rice.
细胞融合和体细胞染色体加倍是获得杨树多倍体种质的有效途径之一。
Chromosome doubling for somatic cells and somatic hybridization via cell fusion are effective methods to create polyploidy.
由此说明，基因型对秋水仙碱处理离体小孢子诱导染色体加倍的反应不同。
This indicated that different response existed in some distinct genotypes to chromosome doubling through treating in vitro microspores with colchicine.
而要利用组织培养对离体组织进行染色体加倍，首先要建立高效的组织培养再生体系。
If artificial chromosome doubling in vitro is used, a high-efficient tissue culture system must be established.
而单倍体植株是胡萝卜遗传研究的最好材料，由单倍体植株染色体加倍而成的纯合二倍体，又是品种选育的最好资 源。
The haploid plant is the best material for genetic research of carrot, and homozygous diploid formed by doubling chromosome of the haploid plant is also the best resource of breed seed selection.
秋水仙碱一种有毒的、淡黄色生物碱，c22h25no6，从秋天的番红花中提取，用于植物生长中的染色体加倍和用于治疗痛风。
A poisonous, pale-yellow alkaloid, C22H25NO6, obtained from the autumn crocus and used in plant breeding to induce chromosome doubling and in medicine to treat gout.
主要研究结果如下：1。研究了小青杨单芽茎段培养和愈伤组织再生技术，为进一步开展离体叶片细胞染色体加倍以及原生质体培养奠定了基础。
Results are as follows: 1. Axillary buds culture and callus differentiation were studied in this paper, which provide experience for in vitro chromosome doubling and protoplast culture techniques.
另一个大谜团是这些蜥蜴到底是如何分解最初加倍的染色体的呢？
Another big unknown is precisely how the lizards end up with double the amount of chromosomes in the first place.
这种植物种群数量的“大爆炸”是在古代植物染色体组加倍时发生的。染色体组加倍给植物提供了大量具有新功能的基因，这些新基因又形成了新特性。
These "big bangs" in plant evolution occurred when the genomes of ancient plants duplicated, providing vast Numbers of new genes that could take on new functions and lead to new traits.
本次研究结果表明桤木属物种间染色体数目有明显的差异，同一物种不同居群间也有差异存在，而且可能有自然加倍现象；
The results suggested that obvious difference of chromosome number appeared among these Alnus species, even in the same species from different population, and spontaneous polyploidy might occur.
花粉植株中，一般比较健壮的植株染色体较易自然加倍，而比较细弱的植株自然加倍率则较低。
In the pollen plant, it is easy to double chromosome of strong seedling, but it is difficult to double chromosome of weak seedling.
染色体数目加倍，保卫细胞内叶绿体数目明显增多，约为二倍体的1.63倍。
The number of chromosome increased two times, and the chloroplast increased too, about 1.63 times.
染色体数目加倍，保卫细胞内叶绿体数目明显增多，约为二倍体的1.63倍。
The number of chromosome increased two times, and the chloroplast increased too, about 1.63 times.
应用推荐