交配的

This rabbit had no natural enemies in the Antipodes,so that it multiplied with that promiscuous abandon characteristic ofrabbits.

这种兔子在澳大利亚及新西兰没有天敌，因此便以兔子所特有的杂乱交配迅猛繁殖起来。

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。

By simulating of natural population structure, copulatory patterns, mating behavior ,seasonal reproduction, society structure and other primary factors of Rhinopithecus roxellana were studied, we found that testosterone secretion in male and society structure have positive correlation.

在模拟自然社群结构的半散放条件下，研究川金丝猴的交配模式、交配行为、性行为活动的季节性，以及川金丝猴社群结构组成和变换的关键因子，即家庭群主雄的替换由成年雄性发起，而由成年雌性的认可结束，雄性睾酮的大量分泌与社群结构的变化相关。

While a mating within a breed may be considered outbred, it still must be viewed as part of the whole genetic picture: a mating within an isolated, closely related, interbred population.

在同一犬种之内的交配可以被看作非近亲繁殖，它仍然被看作是整体基因图画的一部分：在一单一的，紧密相关的，杂交的种群内的交配。

ABSTRACT It is because that the excellent acceptors for maize transgenic engineering are insufficient in our country, especially in the southwest mountain areas of china and hereditary variation regularity for the two characters such as efficiency of embryonic callus induction and number of regenerating plant (these two characters were abbreviated to the nduction efficiency and number of regenerating in the following of the paper, respectively), which hint the maize culturing capacity, is not very clear. Therefore, aiming at picking out superior acceptors, we had made systematic researches on the two characters with combing traditional quantitative-character genetic analyzing methods such as single-factor genetic mating design, diallel crossing genetic design, genetic effect analyzing method and the modern molecular locating method such as QTLs'. The main results are followed.(1) 50 superior inbred lines and about 30 crosses in our country, especially in the southwest of China were used for identifying and selecting the superior genotypes in the above two investigated characters under the same culturing condition in 2000 and 2001. There was very significant difference among the genotypes in the both characters. But the two characters were not certainly related. Some genotypes such as 18-599 and 18-599 were very good in them. For some ones such as zong 31, induction was higher than 18-599 and 18-599 in the efficiency, but it was only 1/3 to the later in regenerating number. In some genotypes such as S37, R08, R15, P138, A318, induction efficiency was just about 3% and scarcely any regenerating plants were got. On the whole, hybrids acted better than inbreeds in the both characters.(2) Two kind of inbreeds were selected as parents of the Griffing's method 1. 18-599 and 18-599 and the inbred line zong 31 are one kind because they are not only superior in the characters of maize cross breeding, such as CA, resistance to disease and the important agricultural characters, but also excellent in transformation characters as the induction and regeneration.

针对我国、特别是西南山地所需玉米转基因工程育种优良受体极为匮乏和反应玉米幼胚培养能力的2个主要性状，即玉米幼胚胚性愈伤组织诱导率和胚性愈伤组织绿苗发生数的遗传变异规律十分不清楚的实际情况，本研究从筛选玉米转基因工程所需要的优良受体入手，采用单因素遗传交配设计、双列杂交遗传交配设计、世代基因效应等传统数量性状分析方法，以及现代分子标记定位主效QTL分析方法，对玉米幼胚胚性愈伤组织诱导率和胚性愈伤组织绿苗发生数等2个性状进行了较为系统的分析研究，取得以下主要研究结果：(1)于2000年和2001年通过对我国、特别是西南地区近50份优良自交系和近30个杂交组合，在相同培养条件下，对幼胚培养胚性愈伤组织诱导率和胚性愈伤组织绿苗发生数等2个幼胚培养能力性状进行了筛选与鉴定，发现玉米不同基因型具有完全不同的幼胚培养胚性愈伤组织诱导率和胚性愈伤组织绿苗发生数，但幼胚培养胚性愈伤组织诱导率与胚性愈伤组织绿苗发生数并不具有必然的相关关系，有的基因型，如自交系18-599和18-599在胚性愈伤组织诱导率和愈伤组织绿苗发生数等2个性状都表现相当优异；有的基因型，如自交系综31，仅幼胚培养胚性愈伤组织诱导率性状表现高于19-599和18-599，但在胚性愈伤组织绿苗发生数这一性状则与它们有相当大的差距，仅为19-599和18-599的1/3左右；有的基因型，如S37、R08、R15、P138、A318等玉米自交系不仅幼胚培养胚性愈伤组织诱导率很低，平均仅在3％左右，而且胚性愈伤组织绿苗发生数表现也很差，基本上没有分化成苗。

In the mating test, mycelial protoplast pairs between single spore isolates of different strains formed colonies with clamp connection, while mycelial protoplast pairs between the same single spore isolates formed colonies without clamp connection, suggesting that the two nuclei of the spores possessed identical mating type factors.

在交配试验中，源于不同菌株单孢分离物的菌丝原生质体的配对形成具锁状联合的菌落，而源于同一单孢分离物的菌丝原生质体的配对则形成无锁状联合的菌落，暗示担孢子中的两个核具有相同的交配型。

I assessed if mating common eastern froglets Crinia signifera exhibited size-related patterns. I compared the snout-urostyle lengths and body condition of amplexing males with that of non-amplexing males to determine if successful males were larger or in better condition. I assessed if there was a linear relationship between the body length of the female and the successful male and the relative condition of the male (measured by body mass versus length).

通过比较抱对和非抱对普通东方小蛙的吻-尾干骨长和检测个体较大或状态较好的雄体是否为成功繁殖个体，检测雌蛙体长与交配成功的雄蛙的体长和相对状态之间是否存在线形关系，评估交配与个体大小之间的关系。

I assessed if mating common eastern froglets Crinia signifera exhibited size-related patterns. I compared the snout-urostyle lengths and body condition of amplexing males with that of non-amplexing males to determine if successful males were larger or in better condition. I assessed if there was a linear relationship between the body length of the female and the successful male and the relative condition of the male (measured by body mass versus length).

通过比较抱对和非抱对普通东方小蛙的吻尾干骨长和检测个体较大或状态较好的雄体是否为成功繁殖个体，检测雌蛙体长与交配成功的雄蛙的体长和相对状态之间是否存在线形关系，评估交配与个体大小之间的关系。

Results of interpopulation crossing test of mating, fertilization rate, embryo growth and hatchability under the condition of cage feeding indicated that:(1) due to difference in body size, morphology, habits and characteristics and reproducing season, crossing fertility between wild Japanese quail in China and domestic quail population was lower than that of intrapopulation mating, but fertilized egg through reciprocal crossing could be incubated and produced F1 without prezygotic isolation;(2) crossing of wild male quail ?female small-type domestic quail produced the best effect among all combinations of reciprocal crossings.

通过关于笼饲环境下交配行为、受精率、胚胎发育、种蛋孵化率的种群间杂交试验证明：由于体量、形态、习性、繁殖季节性的差异，我国境内的野生日本鸣鹑与家鹑群体之间的杂交能育性低于同种群交配水平，但可以实现正、反杂交，产生受精卵、孵出杂种一代，不存在合子前生殖隔离；在正反杂交组合中，以野雄鹑X小型雌家鹑的效果最好。

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