陈之端,路安民.桦木科植物的系统发育和演化[J].中国科学院院刊,2001,(3):188-191.

陈之端
中国科学院植物研究所系统与进化植物学开放研究实验室!北京100093
Chen Zhiduan
Laboratory of Systematic and Evolutionary Botany, Institute of Botany, CAS, 100093 Beijing
路安民
中国科学院植物研究所系统与进化植物学开放研究实验室!北京100093
Lu Anmin
Laboratory of Systematic and Evolutionary Botany, Institute of Botany, CAS, 100093 Beijing

         桦木科;系统发育;演化

        全面阐述桦木科 6属 36种植物叶表皮和花粉的形态及系统学价值 ;首次揭示中国特有属———虎榛子属胚胎发育的全过程 ;化石植物有重要发现 ,发现了美国怀俄明古新世一个化石新属———Cranea和Palaeocarpinus属的两个化石新种 ,是迄今为止所发现的桦木科榛亚科最早的化石纪录 ;利用形态学资料、rbcL基因序列、ITS序列分别对桦木科及外类群进行分支分析 ,并根据化石植物提供的证据 ,将三者结合分析 ,重建了桦木科的系统发育 ,建立了桦木科的新分类系统

        In the present study, foliar epidermal features and pollen morphology of 36 species representing all 6 genera of the Betulaceae were carefully examined under Light Microscopy, SEM and TEM, and their systematic significance was discussed. The embryology of Ostryopsis, an endemic genus to China, was thoroughly observed for the first time. There are some important discoveries on the studies of fossil plants in the family. One new extinct genus, Cranea, and two new species of Palaeocarpinus from the Paleocene of the United States of America, were published. They are the earliest fossil records of Coryloideae up to now. The cladistic analysis was made using the data from morphology, and DNA sequences. Based on the evidence from morphology, molecular systematics, and paleobotany, the phylogeny of the Betulaceae was reconstructed, and a new system of classification in the family was established.