遗传型

Phenotypic plasticity and genetic differentiation are the two major strategies that alien invasive plants can adapt habitat heterogeneity.The polymorphism of invasive plants and the diversity of their dispersal way enable them occupying invaded habitat quickly,and dispersing with a far range.The breeding strategies that agamogenesis and amphigenesis can coexist and trade off according to the habitat and invasive stage can not only promote the invasive population erupted massively,but also directly affect the dispersal mechanism and regulate the genetic structure of the population.

表型可塑性和遗传分化是外来入侵植物对生境异质性的两种适应策略；散布体多态型和散布途径多种化，使外来入侵植物迅速占领入侵生境，并进行远距离扩散；无性生殖和有性生殖并存，并根据生境和入侵阶段权衡的繁育对策不仅使入侵种群大面积暴发成为可能，而且直接影响散布机制并对种群遗传结构具有调节作用。

During the postgenomics era the information about genomic sequence and gene functions provides a new foundation for evolutionary biology and ecology As the first whole-genome sequenced plant Arabidopsis thaliana and its wild relatives have played a critical role in understanding the evolution of genomics and speciation Both A halleri and A lyrata are closely related to the model species A thaliana A halleri ssp gemmifera occurs in northeastern China Japan and Taiwan; while its sister A halleri ssp halleri is mainly distributed in Europe Geographical barriers such as Tienshan Mountain Range isolate these intraspecific sisters Likewise A lyrata ssp kamchatica and ssp lyrata occur in East Asia and North America respectively Such distribution patterns seem to be consistent with allopartic speciation The comparison between ancestral and extant polymorphism by multilocus can be informative about the population genetics of speciation In this study we collected and analyzed DNA sequences of 98 genes from four wild relatives of A thaliana A halleri ssp gemmifera A halleri ssp halleri A lyrata ssp kamchatica and A lyrata ssp lyrata The ancestral states of these four species were compared to each other in terms of level of genetic variation However the ancestral species at the time of speciation were substantially more polymorphic than the extant geographical populations The observations are not fully compatible with speciation by strict allopatry At some species pairs parapatric speciation seems more reasonable in speciation of Arabidopsis The 98 gene sequences are also used for the congruence test between gene genealogy and species phylogeny Only 28 genes support the species phylogeny but there are 23 genes supports another major genealogy { lyrata} thaliana Based on the phylogenetic position change of A lyrata ssp kamchatica and Ks value for each species pair suggested the recent directional gene flow between A halleri ssp gemmifera and A lyrata ssp kamchatica

阿拉伯芥是第一个完成基因体定序的开花植物，其基因体资讯提供植物学研究的重要依据；在解析阿拉伯芥属物种的亲缘关系以及种化机制等重要的演化议题时，阿拉伯芥近缘的野生物种自然成了不可或缺的关键；跟阿拉伯芥近缘的物种包括A halleri及A lyrata，其中A halleri ssp gemmifera主要分布於中国东北、日本以及台湾，与近缘的A halleri ssp halleri其分布於欧洲隔著天山及大陆的障蔽，而A lyrata ssp kamchatica主要分布於东北亚及台湾，与分布於北美五大湖的A lyrata ssp lyrata被北极圈所分隔，这样的分布模式暗示异域种化的可能。藉由多基因分析比较祖先物种与现生物种遗传歧异度的相关可提供讯息探讨种化时期的族群遗传结构，本研究针对A halleri ssp gemmifera、A halleri ssp halleri及A lyrata ssp kamchatica、A lyrata ssp lyrata四个物种，两对互为亚种的姊妹群，以阿拉伯芥为外群进行研究，在四个物种完成98个同源基因的分子序列，利用套装软体MCMCcoal来估算祖先物种的遗传变异，亦估算现生物种的核苷酸歧异度，观察到？多物种配对中祖先物种遗传多型性大於现生物种DNA歧异度，显示异域种化模型并无法完全解释阿拉伯芥属物种的种化模式，在某些物种配对间邻域种化模式应比异域种化更为可能；在基因树与物种树的比较，98个基因片段的亲缘模式只有28个是与已知物种树一致的，有23个基因其树状图支持{ lyrata} thaliana的型式，藉由kamchatica位置的变化以及估算各物种配对间的平均同义置换率，推测在A halleri ssp gemmifera与A lyrata ssp kamchatica间具有近代的单方向基因交流。

In summery, this study has proved that biotype in BPH is a very complex phenomenon, and the quantitative resistance does really exist in rice varieties.

各类生物型都不是遗传上同质的单一群体，而是具有某种特异遗传构成和特异平均致害表型的混合群体。

Behavioral phenomena quantified by genetic markers in various species include patterns of multiple mating by both sexes; frequent cuckoldry by males and rare cuckoldry by females in nest-tending species; additional routes to surrogate parentage via nest piracy and egg-thievery; egg mimicry by nest-tending males; brood parasitism by helper males in cooperative breeders; clutch mixing in oral brooders; kinship in schooling fry of broadcast spawners; sperm storage by dams in female-pregnant species; and sex-role reversal, polyandry, and strong sexual selection on females in some male-pregnant species.

通过遗传标记测量不同种的行为现象涉及两性间的多种交配现象：趋穴型种类中雄性与多个雌性私通而雌性则较少交配；通过侵略巢穴和偷窃卵的行为进行偷梁换柱；通过趋穴型雄性鱼类进行卵的模拟；通过共同繁殖型中的雄性进行寄生抚育；通过混合在口孵育型鱼类的幼体间；广播种型产卵者鱼苗的亲缘关系；怀卵孵化型鱼类的精子储存；以及性逆转，一妻多夫，雄性怀卵抚育型种类雌性的强烈性选择。

Behaioral phenomena quantified by genetic markers in arious species include patterns of multiple mating by both sexes; frequent cuckoldry by males and rare cuckoldry by females in nest-tending species; additional routes to surrogate parentage ia nest piracy and egg-thieery; egg mimicry by nest-tending males; brood parasitism by helper males in cooperatie breeders; clutch mixing in oral brooders; kinship in schooling fry of broadcast spawners; sperm storage by dams in female-pregnant species; and sex-role reersal, polyandry, and strong sexual selection on females in some male-pregnant species.

通过遗传标记测量不同种的行为现象涉及两性间的多种交配现象：趋穴型种类中雄性与多个雌性私通而雌性则较少交配；通过侵略巢穴和偷窃卵的行为进行偷梁换柱；通过趋穴型雄性鱼类进行卵的模拟；通过共同繁殖型中的雄性进行寄生抚育；通过混合在口孵育型鱼类的幼体间；广播种型产卵者鱼苗的亲缘关系；怀卵孵化型鱼类的精子储存；以及性逆转，一妻多夫，雄性怀卵抚育型种类雌性的强烈性选择。

The seeds could not be stored for a long time and the number of germination was 50% or so when seeds were cold stored . We can infer through analyzing the inheritance of some character of Gerbera jamesonii that the expression of red flower color of hybrids somewhat trended to that of female parents , plant height、flower diameter and flower doubleness had a declined tendency .

通过对杂交组合F1代的部分性状遗传变异情况分析可知：非洲菊舌状花瓣的红色具有偏母性遗传的倾向；单瓣性具有一定的遗传优势，重瓣型不具有遗传优势；杂交F1代的株高和花径呈趋小性衰减的趋势。

The profiles of pathogenic strains had less difference from each other but more difference from nonpathogenic strains.

致病性钩端螺旋体间MRSP谱型差别相对较小，遗传距离较近，而它们与非致病性钩端螺旋体的MRSP谱型相差大，遗传距离远。

The unconditional and conditional analyses of genetic models and the corresponding statistic methods, including endospermic, cytoplasmic, and maternal plant genetic systems, were used to analyze the genetic relationships between protein content and the appearance quality traits of indica rice (Oryza sativa L.).

应用包括胚乳、细胞质和母体植株基因的遗传主效应以及基因型×环境互作效应的数量性状遗传模型及非条件和条件分析方法，研究了籼稻稻米蛋白质含量与外观品质性状间的遗传相关性，进一步揭示了籼稻糙米重、稻米直链淀粉含量对稻米蛋白质含量与外观品质性状间遗传相关性的影响。

Enteritidis were obtained from poultry and its meat products.The antibiotic resistance of food isolates was higher than clinical isolates. The drug resistance spectrum of diarrhea patients isolates in 2006 was different from that in 2007.76 strains including 13 food-borne strains belong to 21 PFGE pattern combinations,and their genetic similarly was higher than 80%.

包括13株食品株在内共76株肠炎菌株可分为21种PFGE带型，遗传同源性接近80%，优势带型依次为3型（34株）、1型（12株）、2型（5株）和5型（5株），除2型外均发现有与腹泻株同型的食源株。2006和2007年的PFGE1/2型病例分别为4例和12例。

Four male sterile lines and nine restorer lines were used in incomplete diallel crosses to analyze the genetic effects of appearance quality traits in japonica hybrid rice by using the genetic model and analysis method for quality traits of endosperms in cereal crops.

以宁 6 7A等 4个粳型不育系与 K172 2等 9个粳型恢复系进行不完全双列杂交，采用禾谷类作物胚乳品质性状的遗传模型及其分析方法，对粳型杂交稻稻米外观品质性状进行了遗传研究。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。