查询词典 gene flow

High genetic divergence, and thus low gene flow, was estimated among Otto and Chall Huaco whereas within each mountain range among-population divergence depended upon site characteristics.

在 Otto 和 Chall Huaco 之间，因高度基因不同和低基因流动已被估计出；然而在每一座山区族群的不同，视地方不同的特性而定。

This study used microsatellite markers attempts to:(1) discover the genetic variation among sampling populations and reconstruct the phylogeographic scenario;(2) confirm the direction of gene flow (3) conjecture the causation and time of introgressive hybridization.

本文的研究发现两种石鸡之间具有显著的遗传分化(Fst=0.2979，Rst=0.1942，Neis D_A=3.016)。8个微卫星位点在大石鸡88个样本扩增出40个等位基因，在石鸡64个样本扩增出35个等位基因。

Based on comparison of the chloroplast genomes, the estimated time of divergence between the two populations is consistent with the emergence time of the Kra Isthmus. However, ancient and recent gene flow obscures the phylogenetic relationships between eastern and western haplotypes.

经由单套型在亲缘分析结果显示，在地峡东、西两岸的细蕊红树族群无法呈现良好的解析力，显示古地质事件造成的族群扩张和近代海流造成的长距离基因交流导致此结果。

Our results indicate that the Malay Peninsula has had separate populations on opposite sides of the Kra Isthmus since its formation, but that interglacial migration at the Strait of Malacca may have provided a corridor for gene flow.

本研究结论指出在马来半岛形成后，有效阻隔克拉地峡两侧的族群，但在间冰期导致海平面上升，马来半岛南端麻六甲海峡的通道提供两海域生物长距离迁徙的路径。

Besides, it is consistent with the asymmetrical gene flow from monogynous to polygynous populations through males in monogyne..Therefore, the cuticular chemicals can not be cluster well between monogynous and polygynous ants, and the variance of chemicals of the latter is higher than those of the former.

由於这些化学物质的合成受到遗传影响，这种现象显示两个涵义，第一个是单蚁后社会型的工蚁对其他蚁后有强烈的排他性而造成的选汰压力导致其遗传结构上较为均质，另一个涵义显示单蚁后社会型的遗传组成可藉由雄蚁将其基因带入多蚁后社会型的遗传组成，但反之则不然；因此二者之间无法分群，且后者的遗传变异较前者为大。

Biological species concept This concept views species as a group of interbreeding natural populations that are reproductively isolated from other such groups.

Gene flow 生物种的概念生物种概念认为种是一组可以相互杂交的自然种群，它们与其他种群间具有繁殖隔离。

Not all polyploids are reproductively isolated from their parental plants, so an increase in chromosome number may not result in the complete cessation of gene flow between the incipient polyploids and their parental diploids.

并非所有的多倍体与其亲本有生殖隔离，因此，染色体数目增加不会导致初始多倍体与其二倍体亲本之间的基因交流完全停止。

Historically, extensive hydrologic connectivity among populations might have facilitated long-distance gene flow and resulted in the pattern of genetic variation revealed in this study, and also played great roles in population dynamics and population persistence of V. spinulosa in this region.

长江中下游湖泊与长江干流历史上高的连通性对刺苦草在这一区域的遗传多样性水平和遗传结构形成起了重要的作用；同时，历史上的江湖一体化格局也促进了刺苦草在这一区域的种群扩散和维持。

Or 10.40％ of the variation was partitioned among voltinism populations. The Nm (4. 3065) showed that there was to some extent gene flow among three voltinism populations. The average Nei's genetic identity was 0.9637. The genetic distance between V1 population and cultivated V1 population was the biggest (0.0438) and the less was 0.0370 between V1 population and V2 population.

Nei基因多样性指数也是2化群体最大（0.2631），1化群体次之（0.2485），培育1化性群体最小（0.1709），3个群体之间的遗传分化系数为0.1040，即3个化性群体之间的遗传变异占到总遗传变异的10.40％。3个化性群体之间的基因流达到4.3065，表明化性群体间存在着一定程度的基因交流。3个群体之间的遗传一致度为0.9637，遗传距离以培育1化性群体与1化性群体最大（0.0438），以1化群体与2化群体最小（0.0370）。

On the basis of introduction of the phylogenetic relationship and gene flow between biotypes Q and B of B.

在介绍烟粉虱Q型与B型系统发育关系以及基因交流的基础上，着重论述这两种生物型的种群动态及其影响因子的研究进展，以期揭示烟粉虱Q型与B型的成功入侵机制，并为其控制提供依据。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。