| 1. | Application of dna sequences in plant phylogenetic study
序列在植物系统学研究中的应用 |
| 2. | Gene sequences used in phylogenetic study on chaldidoidea hymenoptera
基因序列在小蜂总科分子系统发育研究中的应用 |
| 3. | Cytochrome b ( cyt b ) is one of the most widely used molecular markers in animal molecular phylogenetic studies
线粒体蛋白质编码基因细胞色素b ( cytb )是动物分子系统学应用最广泛的分子标记之一。 |
| 4. | Sequence divergences within these grasshoppers indicate that cyt b is a useful marker at the generic and species level for phylogenetic study , but there is problem at the subfamily level
囚此， cytb基因在对斑翅蝗科科下种属阶元的分类与进化关系研究中，是一个有效的分于标记。 |
| 5. | This research reviewed the relationships of the myriapods to other arthropoda , based on morphological and molecular sequence data and the studies of developmental biology . the review was followed the major controversies in the higher - level phylogeny of myriapods . the complete 18s rrna sequences of four groups of myriapoda plus hexapoda ( protura , diplura , insecta ) and crustacea were used for phylogenetic study
本研究首先从形态学性状、分子性状( dna和蛋白质)以及结合形态和分子性状、发育生物学的研究等方面对多足类动物与其他节肢动物之间的亲缘关系进行了综述，同时对多足类的系统发生研究进行了综述。 |
| 6. | The chilopoda and diplopoda are monophyletic group respectively . although there are some limitations , the mitochondrial dna as a model system is being used as a powerful tool in phylogeny analysis . it is the only molecular marker that can be used in the phylogenetic studies at genomic level
线粒体dna基因组全序列作为研究动物系统发生的模式系统，虽然有一定的缺陷，但仍是生物学家研究系统进化最有力的工具，它是目前唯一可以提供基因组水平上进行系统发生研究的分子标记。 |
| 7. | The origin and evolution of land plants was an important event in the history of earth life and has affected all other lives on the earth and global environment . during the past two decade , the new discoveries of fossil plants microfossils and megafossils from the mid - ordovician through all silurian to the lower devonian improved knowledge of the origin of land plants , provided a time framework of the basal groups for the land plants and the early evolution diversity of vascular plants . three new plant based epochs have been recognized . on the other hand , molecular sequence studies have provided insights into the phylogeny and early branches of land plants . a phylogenetic tree has been established by the joint of a study of comparative morphology and gene sequences . this paper summarizes recent advances and new knowledges , comments on the phylogenetic studies based on the cladistic analysis
陆生植物的起源和演化是地球生命中的重大事件，它影响到地球上所有的其他生命和全球环境。在过去的20年中，从中奥陶世历经整个志留纪至早泥盆世的岩层中，化石植物微化石和大化石的新发现改变了人们对陆生植物起源的认识，并且为陆生植物和维管植物早期演化分异提供了基部类群分化的时间框架。据此人们识别出地史中的3个陆生植物的时代：始胚植物时代始维管植物时代和真维管植物时代。 |
| 8. | Recently , we know the number of muntjac deer chromosomes varies from 6 to 48 , and there are karyotypic polymorphism intra - species relationships . these animals are extremely useful for phylogenetic studies . in order to discuss the phylogenetic relationships of muntiacinae , we have studied the nuclear gene sequence of muntiacus muntjak , muntiacus crinifrons , muntiacus reevesi , and elaphodus cephalophus
为了探讨麂亚科动物间的亲缘关系，本论文以赤麂( muntiacusmuntjak ) 、黑麂( muntiacuscrinifrons ) 、小麂( muntiacusreevesi )和毛冠鹿( elaphoduscephalophus )这4种麂亚科动物为材料，以核基因序列为研究对象，作进一步的研究。 |
| 9. | A four - gene block , a rwo - trna gene cluster and six single trna genes involved in the rearrangement , the second gene rearrangement type of mitochondrial dna reported for any pancrustacea arthropod . comparisons of mitochondrial gene arrangements of decapod suggested that rearrangement of the four gene - block found in eriocheir is informative for high level phylogenetic study of decapod
发生重排的基因包括一个4基因块的重排、 1个2基因的trna基因簇的重排和6个单一trna基因的重排，形成泛甲壳类线粒体dna的另一种基因重排类型。 |
