基因世代

As there are only six parents in the diallel crossing. and one cross combination for genetic effect analyzing, and the datum from the number of regenerating didn't submit to the normal distribution formula even when they were transferred, there may be some aberrancy in the result of this character. Therefore, more experiments and larger samples are needful further to conform, improve or correct this research results later.

7本研究双列分析的亲本仅为6个，世代的基因效应分析也仅只有1个组合，可能导致统计分析结果偏颇，还由于性状胚性愈伤组织绿苗再生数资料经转换后仍不能遵从正态分布，也会使得该性状的分析结果可能有偏差，今后需要用更多的试验和抽取更大的样本进行分析研究，进一步证实、完善或纠正本试验结果。

It facilitates the understanding of gene function for its long haploidy generation.as its morphological, chemical and physiological changes resulted from gene mutation or knock out are easy to be identified.

小立碗藓长期处于单倍体世代，对于遗传学研究来讲，单倍体植物基因突变或敲除所产生的形态或生理生化变化容易被监测到，这些使研究植物抗逆基因的功能极为方便。

According to Mather and Jinks model, using generations mean analysis m eth od, the various kinds of gene effects and its percentage of gene-effect-square s um were estimated,and comparative analysis on the gene effects and the importan ce t o inheritance of characters was carried out between the supernumerary spikelet l ines.

黄毅以主穗小穗数在25～30个的二个普通小麦多小穗品系85DH5015、SW94-30921 与三个普通小麦品种组配成6个组合的P1、P2、F1、F2、B1、B2为材料，用世代均值法分析了6个性状的遗传模型并估算了各类基因效应值，比较分析了两个不同来源多小穗小麦品系六个性状各类基因效应的异同及其相对重要性。

Quantitative trait ; Major gene plus polygene mixed inheritance ; Joint analysis of multiple generations ; IECM algorithmH

数量性状；主基因+多基因混合遗传；多世代联合分析； IECM算法

Joint segregation analysis of P1, F1, P2 and F2 populations derived from a cross between Lishuizhongzihuang and Nannong 493-1 in soybean was used to study the inheritance of the resistance of soybean to bean pyralid in this article.

在田间自然虫源条件下，以溧水中子黄豆和南农493-1正反交组合的F2群体为材料，F2单株叶片损失率为抗性鉴定指标，应用亲本、F1和F2四个世代的数量性状主基因+多基因混合遗传分析方法，分析了大豆对豆卷叶螟抗性的遗传。

The results indicated that the white flower was dominant over yellow and the erucic acid content was additively inherited. Both traits fit with a monogenic inheritance model, respectively. There were strong evidences to support the linkage relationship between the flower colour and the erucic acid content in the C-genome of B. napus with a recombination frequency of 4.8% in the DH population.

对亲本、F1、BC1、F2和DH 5个世代的花色及芥酸含量进行分析，结果表明：花色受单基因控制，且白花对黄花为显性；芥酸含量仅表现出一对基因的差异且具有加性效应的遗传模式。

By PCR analysis using specific primers, one specific band at 600~700 bp was distinctively present in cms backcrossed generations. It was genetically stable and cytoplasmically inheritable in the various backcrossed progenies.

根据Brassica nap型细胞质雄性不育相关基因orf222设计兼并引物，利用特异引物PCR方法，分别在不育源、F1、BC2以及BC3世代中扩增出一条600~700 bp 大小的特异条带，而在叶用芥菜保持系中无此条带，具细胞质基因遗传特性。

The inheritance of branch number and length of maize tassel was re-studied by means of a mixed inheritance models of quantitative traits of a major gene plus polygene based on parents, F_1, F_2 and backcrosses from two different combinations of maize.

以478×CMI312和丹340 ×CML322等两个组合的 6个世代（P_1，P_2，F_1，F_2，B_1，B_2）为材料，采用数量性状的主基因－多基因混合遗传模型，重新研究了玉米雄穗分枝数和雄穗长度的遗传。

The closer their kinships are, the higher the probability of their genes to be identical and the more the assistance, contributions and sacrifices would be given to each other.

自然选择会保留那些在世代交替中能最大限度地把自身基因或与自身相同基因传递给后代的个体，即广义适合度最大的个体。

Breeding of transgenic rice restorer line for multiple resistance against bacterial blight, striped stem borer and herbicide(1) Transgenic rice line Zhongguo91 (carrying cry1Ab and bar gene) and elite restorer line Hui773 were crossed, then backcross was carried out three times using Hui773 as recurrent parent and self-cross was carried out one time.

多抗性(抗白叶枯、螟虫、除草剂)转基因水稻恢复系的培育(1)将恢773与携有转cry1Ab和bar基因的水稻新品系中国91(cry1Ab)杂交，并以恢773作为轮回亲本，连续回交三代和自交一代，对各回交世代的单株进行cry1Ab和bar基因的PCR分析、田间抗虫性鉴定和除草剂Basta抗性鉴定，经过选择获得了转基因水稻恢复系T773-1，田间种植对螟虫及除草剂Basta表现很好的抗性。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐