系统学

By 23rd March 2004, there have been 883 records about mtDNA of Chrysomelidae in the data bank of NCBI, but the record of cytb is 0. cytb is the protein-coding gene and known most clearly in mtDNA. Its often used to study Diptera but never to study the phylogeny of Chrysomelidae.

截至2004年3月23日，在NCBI数据库中，有关叶甲科线粒体基因记录共有883条，但线粒体细胞色素b基因为0记录。cytb基因是一种编码蛋白的基因，是目前了解的最清楚的线粒体基因之一，多用于研究双翅目昆虫，却未曾用于研究叶甲科的系统学问题。

A total of six wild populations of C. yunnanensis were found in two disjunct regions of Yunnan, i.e.

椴树科滇桐是经济价值和系统学意义均较突出的乔木树种。

Based on the work, we started the international cooperation on molecular phylogenies of the East Asian and North Eastern America disjunct groups such as Hamamelis, Liquidambar, Aralia and so on.

在此基础上，开展了东亚北美间断分布类群，如金缕梅属、枫香属、楤木属等的分子系统学研究的国际合作研究项目，并取得了重要成果。

Research areas of the department include biodiversity, classification, evolution, geography, molecular systematics, conservation and ethnobotany.

其研究区域包括生物多样性、分类、进化、地理、分子系统学、保护和民族植物学等。

In order to analyze the systematic relationships among the three genera: Brasenia, Nymphaea and Euryale, the floral organogenesis of their representatives has been studied by SEM.

为探讨莼菜属、睡莲属和芡属的系统学关系，本文应用扫描电镜技术对三属代表植物的花器官发生进行了研究。

Using the zebrafish as an animal model, researchers in the lab of Harvard Medical School professor of systems biology Timothy Mitchison and Dana Farber Cancer Institute professor Thomas Look have discovered that when the tail fins of these creatures are injured, a burst of hydrogen peroxide is released from the wound and into the surrounding tissue.

利用斑马鱼作为动物模型，哈佛医学院的研究员生物系统学教授Timothy Mitchison和Dana Farber癌症研究所的Thomas Look教授发现，当这些生物的尾鳍受伤时，大量的过氧化氢被从伤口释放出来，进入了周围的组织。

It contains entries dealing with various aspects of extant and fossil American plants and fungi, including systematics and floristics, morphology, and ecology, as well as economic botany and general botany (publications dealing with botanists, herbaria, etc.).

索引条目涉及美国现存的、化石的植物和真菌类的各方面信息，包括系统学、植物区系地理学、形态学和生态学，经济植物学和普通植物学，还涉及植物学家和标本的出版物信息。

Speculating on the origin of Gaultheria, two different hypotheses were suggested, one of Gondwanan origin, and the other of Laurasian origin.

本文概述了近年来白珠树属的分子系统学和生物地理学研究进展，并对该属尚存的一些问题进行了讨论。

On the basis of molecular data, Gaultheria is not a member of the tribe Andromedeae in which it was traditionally treated but is in a tribe of its own, Gaultherieae, along with other related genera.

最近的分子系统学研究认为，白珠树属已经不再属于传统上的越橘亚科的綟木族，而是与一些相关属组成了白珠树族。

Speculating on the origin of Gaultheria, two different hypotheses were suggested, one of Gondwanan origin, and the other of Laurasian origin In the present paper, recent advances in molecular phylogenetics and biogeography of Gaultheria are summarized and some problematical issues within the genus discussed.

关於白珠树属的起源问题存在两种不同的推测：一种观点认为该属起源於南半球的冈瓦纳古陆；另一种观点则认为其起源於北半球的劳亚古大陆。本文概述了近年来白珠树属的分子系统学和生物地理学研究进展，并对该属尚存的一些问题进行了讨论。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。