缺体

缺体分析将不育基因定位在4B染色体上。

Nullisomic analysis showed that the male sterile genes located in the chromosome 4B of wheat .

利用缺体回交法选育小黑麦异代换系的研究

A research on nullisomic backcross method for breeding alien substitution lines

利用中国春缺体四体系，已将TaCyp基因定位在小麦6A、6B及6D染色体上。

Chinese Spring nulli_tetrasomic line analysis located the Ta_Cyp homologous genes on wheat chromosome 6A , 6B and 6D .

利用中国春及其缺体－四体对wx－Bl基因的STS标记和wx－Al、wx－dl的微卫星（SSR）标记进行了定位。

Chinese Spring and its null-tetrasomic lines were used to identify the specific bands of STS-marker and microsatellites ( SSR ) marker of wx genes .

以中国春第6部分同源群染色体的缺体-四体材料和六倍体小麦的二倍体和四倍体祖先种的基因组DNA为PCR模板，验证得到11个6D染色体特异的SNP标记。

Experimental tests revealed 11 chromosome 6D-specific SNP markers by using genomic DNA from homoeologous group-6 nullisomic-tetrasomic lines of Chinese Spring and putative diploid and tetraploid ancestors of hexaploid wheat as PCR templates .

国内外对Wx基因效应的研究主要利用缺体&四体系、重组自交系或近等基因系，还未见有利用遗传背景相同的BC5F2代回交改良群体的报道。

Until now , research about the effect of waxy genes mainly depended on nullisomic-tetrasomic lines , recombinant lines or near-isogenic lines , and it is lacking the reports of using improved BC_5F_2 backcross progenies under the common genetic background .

三个新型人工合成缺体-四体小麦材料的细胞学观察

Cytological Observation on Three New Synthetic Nullisomic-tetrasomic Wheat Lines

利用蓝粒单体小麦选育稳定缺体小麦的研究

Developing Stable Nullisomic Wheat by Blue Grain Monosomic Wheat

利用小染色体的促进结实基因提高缺体小麦结实性研究

The investigation of increasing wheat nullisomic fertility used the enhancing fertility genes on microchromosomes

如果一对同源染色体都缺失了，称为缺体。

If both of a pair of homologous chromosomes are missing , nullisomy results .

小麦性状的缺体分析

Nullisomic analysis of wheat characteristics

利用石蜡切片显微观察、雄性不育基因遗传分析和缺体定位等方法，对兰州核不育小麦不育基因进行了遗传研究，以明确该不育基因的遗传学特性。

We studied the genetic characters of the male-sterile gene in Lanzhou Genetic Male-Sterile Wheat ( LGMS ) by cytological method , genetic analysis and nullisomic analysis . Pollen abortion processes of the mutant male sterile line 257A were comparatively investigated with cytological method .

电荷从富电子的噻吩环向缺电子体C（60）种转移。

And the electrons transter from thiophene to C_ ( 60 ) .

另一方面，伍尔夫摒弃传统的人物塑造，运用否定空间将雅各塑造为一个缺场的存在体。

On the other hand , Woolf deserts traditional characterization and constructs Jacob as an absent presence by employing negative spaces .