查询词典 outcrossing

Self-incompatibility SI is a widespread mechanism in flowering plants , which prevents self-fertilization and promotes outcrossing .

自交不亲和是显花植物预防近亲繁殖和保持遗传变异的一种重要机制，这一机制在植物界中普遍存在。

Eui gene of rice was an important genetic factor to improve outcrossing traits of hybridrice.

水稻长穗颈基因eui是根本上改良杂交稻异交性状的重要遗传因素。

By outcrossing these fish to longfinned lines it did not take long untill the first copper imbellis deltas arose in the betta scene.

由交这些鱼longfinned线它没有考虑到长远的第一imbellis三角洲铜中出现的斗鱼现场。

An alternative "informational" approach to this problem led to the view that the two fundamental aspects of sex, genetic recombination and outcrossing, are adaptive responses to the two major sources of "noise" in transmitting genetic information.

针对这一问题，一个选择性"信息式"研究探讨产生了这样的观念，认为性的两个基本方面是对遗传信息传递中两个主要的"噪音"来源的适应性反应。

Special types of male sterility, ideal root structure, higher outcrossing percentage, and GH effect insensitive genotypes are also believed to contribute a great deal to soybean yield improvement in the future.

并结合生产条件的变化和大豆品种资源研究的进展等因素，提出近期和未来对大豆产量改良可能起到重要促进作用的一些性状或侧重的研究方向。

There was a positive correlation between the level of genetic diversity and the outcrossing rate of weedy rice populations, indicating that the introgression from cultivated to weedy rice may enhance the genetic diversity of weedy rice populations.

辽宁省六个地区杂草稻的遗传多样性水平从低到高的顺序与杂草稻发现时间从早到晚的顺序非常相似，据此推测杂草稻的遗传多样性水平可能与治理杂草稻的强度和时间有关系。

However, outcrossing may be abandoned in favor of parthogenesis or selfing (which retain the advantage of meiotic recombinational repair) under conditions in which the costs of mating are very high.

然而，在交配代价很高的条件下，异型杂交可能被摒弃，从而有利于孤雌生殖或自交（它们保留了减数分裂重组修复的好处）。

It is considered to play an important role in protecting the functional pistil and stamens, ensuring reproduction by avoid selfing, and increasing male fitness and outcrossing rates by reducing sexual interference between female and male function.

该类型植物的花部特征在避免自交、促进准确的异交传粉以及通过降低雌雄功能干扰以提高亲本适合度等方面具有重要的进化意义。

10The simulations of an empirical model indicated that, when the outcrossing rate was no more than 1%, a 2 m buffer area with pollen receiver individuals between pollen donor and receiver was sufficient to minimize the frequencies of gene flow to .9%.

对栽培稻到其野生近缘种的基因漂移进行模拟的结果表明，栽培稻到野生稻的基因漂移频率较高并且可能会对邻近的较大范围内的野生近缘种群体造成影响。

The model simulations indicated that, when the outcrossing rate was no more than 1%, a 5 m buffer area with pollen receiver individuals between pollen donors and receivers was sufficient to minimize the frequencies of gene flow to .9%.

然而，对栽培水稻到其野生近缘种的基因漂移进行模拟的结果表明，栽培水稻到野生稻的基因漂移频率较高并且可能会对邻近的较大范围内的野生近缘种群体造成影响。

At the rear was an innovative combination transaxle with the gearbox, clutch, differential, and inboard-mounted drum brakes.

在后面是与变速箱，离合器，差的创新结合变速，和内侧安装鼓式制动器。

For more people can apprecaite and have the master work, there is reproduction painting appears in the market, the large various selection of paint,the high saturation of color plus the plentiful sfumato, to make the reproduction perfect copy and detail as original painting, so as to meet the requirment of amateurs who love art paintings,they do not need to pay high price to get classical paintings.

颜料色域广，色彩饱和度高，色彩层次丰富，图像色彩还原真实，能完美的复制原作，满足艺术爱好者欣赏，艺术爱好者们不用支付昂贵的价格就能拥有经典油画。