四倍体

二倍体四倍体大麦嫩叶蛋白质和维生素C含量比较

Comparison of Protein and Vitamin C in Diploid and Tetraploid Barley Leaves

结果显示：结构完整的细胞DNA的荧光点图形成二倍体、四倍体的区域。

Dot plot image of DNA fluorescence could form region of diploid and tetraploid in integrated cell .

这些类型都是高度不育的，正如由基本的二倍体衍生三倍体和同源四倍体一样。

These forms are highly sterile , as would be expected of triploids and of autotetraploids derived from basic deploids .

植物同源四倍体生殖特性及DNA遗传结构的变异

Variation of Both DNA Genetic Structure and Reproduction Traits of Plant Autotetraploid

柑橘愈伤组织DNA含量变异、体细胞胚胎发生及同源四倍体的诱导研究

DNA Content Variation of Calli , Somatic Embryogenesis and Induction of Autotetraploid in Citrus

实验还对3个品种的大麦叶进行比较，可以看出四倍体大麦叶Ca、Fe的含量要比二倍体高。

The experiment also compares among barley leaf of three different breeds .

同源四倍体大麦花药培养及其花粉植株R1代无性系变异的初步研究

A preliminary study on Anther Culture and somaclonal variation ( r_1 ) in Autotetraploid barley

四倍体沙01梨F1代染色体数目鉴定

Observation on Chromosome Number of F_1 Hybrid Progeny of Tetraploid Pear Cultivar ' Sha 01 '

四倍体鲫鲤F9-F（12）的遗传特性和雌、雄核发育研究

Study on the Genetic Property of F_9-F_ ( 12 ) Allotetraploid and the Gynogenensis 、 Androgenesis of Allotetraploid

玉米×四倍体多年生玉米F1减数分裂构型及不同构型的染色体来源研究

Studies of Meiotic Behavior and the Chromosome Origin of Different Configuration in F_1 Hybrid of Maize × Z.perennis

良性乳腺病的DNA含量，比癌细胞低得多，但比正常细胞高，它们的DNA峰值位于二倍体～四倍体之间。

The DNA contents of the benign lesion cells were significantly lower than that of cancer cells , but higher than that of normal cells .

异源四倍体鲫鲤雌雄差异的RAPD标记

RAPD marker of the difference between the male and female of allotetraploid crucian - Carp

六倍体种B染色体组带型基本相同，四倍体小麦B组N&带种间有一定差异。

The banding patterns of B genome of hexaploid wheats are basically same , but N-bands have definite differences among species of B genome of tetraploid wheats .

异源四倍体棉花分子遗传图谱构建和纤维品质QTL定位

Genetic Map Construction and QTL Mapping of Fiber Quality in Allotetraploid Cotton

马铃薯四倍体栽培种茎段组织的EMS诱变研究

Research on Applying Stem Segment in Vitro of Tetraploid Potato Variety in EMS Mutation

由于染色体加倍过程中的加倍因素和非加倍因素的影响，同源四倍体的DNA遗传结构较其起源二倍体产生了变异，进而导致其表现型发生相应的变异。

Due to the effect of chromosome doubling , the DNA genetic structures of autotetraploid vary from its original diploid , and thus autotetraploid phenotype changes correspondingly .

经流式细胞仪检测表明，纯合四倍体植株细胞的DNA含量是二倍体的2倍，证明染色体相应的增加了一倍。

The result showed that the nuclear DNA content in the cells of the homozygous autotetraploid plants was twice of that in diploid plants by flow cytometry determination .

结果表明，DNA流式细胞仪测定法可以鉴别群体的各种倍性水平，而形态学鉴别法可以把群体中的二倍体与单倍体、四倍体及其它倍体分开。

Results showed that DNA flow cytometry could identify each ploidy level , and the method of morphological characteristics could distinguish diploids from haploids , tetraploids and other ploids .

四倍体RNA／DNA值却明显降低。

But the extent of increasement was very small , whereas the numerical value of RNA / DNA of floral buds of tetraploid was decreased obviously .

四倍体长穗偃麦草（Agropyronelongatum4x）染色体组构成的生化和SSR标记分析

Genome Constitution of Agropyron elongatum 4x by Biochemical and SSR Markers

桑树二倍体及人工诱导的同源四倍体遗传差异的AFLP分析

The AFLP Analysis of Genetic Diversity between Diploid and Artificially Induced Homologous Tetraploid of Mulberry

在推广试验中表现出适应性强的四倍体刺槐，在胁迫过程中保持相对较低的MDA质量摩尔浓度和相对较高的酶活性，这与其抗旱性强弱相关。

It is concluded that tetraploid black locusts with higher drought resistance maintained relatively lower MDA content and higher activity of anti-oxidation enzymes .

桑树二倍体及其同源四倍体遗传差异的ISSR分析

Analysis of Genetic Variation Between Diploids and Their Homologous Tetraploids of Mulberry by ISSR

对获得的7株四倍体植株进行SSR分析，表明这7株四倍体均来自珠心细胞，为体细胞自然加倍得到的同源四倍体。

SSR ( simple sequence repeat ) analyses indicated that the 7 tetraploid seedlings were autotetraploid from nucellar cells .

秋水仙素与DMSO诱导豌豆同源四倍体

Inducing autotetraploid pea with colchicine and DMSO

结果表明：杂交后代基因组的杂合性诱发了F1与异源四倍体广泛的序列消除；

The results indicated that extensive DNA sequence elimination was induced by the genomic merge in the allopolyploids .

野生二粒小麦是普通小麦A、B染色体组的四倍体祖先，具有抗病、蛋白质含量高等优良性状，并且其遗传多样性极为丰富。

Wild emmer wheat is the tetraploid ancestor of the common wheat A and B genome , with good traits of disease resistance and high protein content as well as extremely rich genetic diversity .

利用细胞松弛素B抑制第一极体排放诱导近江牡蛎（Crassostrearivularis）四倍体

Tetraploids induced by inhibiting polar body I with cytochalasin B in Jinjiang oyster , Crassostrea rivularis

四倍体龙牙百合鳞片叶直接形成不定芽和体细胞胚的培养及不定芽直接发生的生理生化特性测定结果表明：在MS培养基中添加一定浓度的6－BA可以诱导外植体直接分化不定芽。

The direct formation of indefinite buds and somatic embryoes from scale leaf and the qualities of physiology and biochemistry of the period of bud formation were investigated .

四倍体棉花分子标记遗传连锁图谱的构建和重要经济性状的QTL定位

Construction of Molecular Marker Genetic Linkage Map and Localization of QTLs for Some Important Economic Traits of Allotetraploid Cotton