查询词典 isolation population

The function of population isolation is stated by the analyzing the domain of attraction of local optimum.

通过对局部最优吸引域的分析，说明了种群隔离的作用。

The paper summarizes the recent progress in microsatellites isolation and their applications in population study, parentage analysis, and detection of changes in genetic variation of farmed stocks, and reviews the problems of microsatellite markers including null alleles and size homoplasy.

本文对皱纹盘鲍的微卫星标记的开发以及在种群遗传多样性评价、家系分析、人工苗种遗传变异监测研究方面的最新进展进行了综述，并阐述了微卫星标记在无效等位基因、大小承异同形性等方面存在的问题。

So the preparation of a pure culture involves the isolation of a given microorganism from a mixed natural microbial population.

因此纯培养制备要从混合的天然微生物群中分离出特定的微生物。

Adding to the difficulty is the fact that some of the main theoretical concepts and the underlying structural conditions of rural America—including definitions of rurality, the structure of rural economies, population characteristics, and the reality of rural isolation and distances— have been altered repeatedly throughout the 20th century.

难上加难的是，许多重要的理论概念和潜在的农村结构性状况——包括农村的定义、农村的经济结构、人口特点和农村的孤立与偏远的事实——在整个20世纪处于不停的变化之中。

Bidens pilosa var. radiata, one of the rapid expanding invasive weeds, has become prevailing throughout Taiwan. A study on the result enhanced by the breakdown of geographic isolation with the native varieties in genetic variation, population structure and introgressive hybrization is really in need. In this study the genetic variation and population structure among the varieties of Bidens pilosa complex were studied using ISSR markers.

在台湾Bidens pilosa种群在外部形态及分布上均非常类似，加上大花咸丰草又属极具侵略性的新归化种，在与其他自生变种又无明显隔离下，是否增加种间之交流与渐渗杂交之机会及对族群结构的影响，实有深入探讨之必要。

Ochotona thibetana; skull; mountains; geographical isolation; population subdivision

母华强，张泽钧，张明春，黄小富，胡锦矗中文关键字：藏鼠兔；头骨；山系；理隔离；种群分化

Endemic Describing a population or species that is restricted geographically. Some endemics have evolved in geographical isolation on islands or mountain tops; others may be relics of once widespread species that have become restricted owing to climate change, geological change, or human activity.

特有种：用来描述一个地理上限定的种群或种，一些特有种与岛屿或山顶这种地理上的孤立有关；还有一些可能是曾经广为分布的某一个种由于气候变化、地理变化或人类活动的影响而遗留下来的。

To detect potential influence from geographical isolation upon population differentiation in small mammals, the skulls of Tibetan pikas among three isolated populations in western Sichuan Province were systematically compared.

为探讨地理隔离对小型兽类种群分化的影响，本文系统比较了四川西部3个隔离藏鼠兔Ochotona thibetana种群在头骨形态上的异同。

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。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了