| 1. | We have invented a technique to extract the humoral fluid from the amphioxus branchiostoma belcheri tsingtauense 我们发现文昌鱼体液出现补体样的溶血活性。 |
| 2. | The presence of lectins in the humoral fluids of amphioxus branchiostoma belcheri tsingtauense , was also studied 此外,文昌鱼体液中是否存在凝集素及其性质如何一直没有报道。 |
| 3. | It has been more than 100 years since the first description of the chromosomes of the amphioxus branchiostoma lanceolatum by stricht in 1895 自stricht1895年报道文昌鱼的染色体以来,迄今只报道了branchiostomalanceolatum 、 b |
| 4. | 1 . chromosome number ( 2n ) and fundamental number ( fn ) the chromosome number and karyotype of amphioxus branchiostoma belcheri tsingtauense were studied using embryonic cells of the animal 染色体数目( 2n )和臂数( fn )用青岛文昌鱼的胚胎细胞作材料,对其染色体数目和核型进行研究。 |
| 5. | Rapd analysis was applied to study genetic diversity of amphioxus ( branchiostoma belcheri tsingtaoense ) in the test . total twenty - two samples , which are eleven males and eleven females were collected for use 本实验首次采用随机扩增多态dna ( randomamplifiedpolymorphicdna , rapd )技术对青岛文昌鱼该群体雌雄各11条个体共22个样本进行遗传多样性检测。 |
| 6. | Sequence alignment shows that the fragment of pcr product showed some identities to the masp gene of xenopus laevis , branchiostoma belcheri , the trypsin gene in litopenaeus vannamei and the serine protease gene in aurelia aurita Pcr反应产物基因片段大小为630bp ,序列比较结果表明, pcr克隆产物与爪蟾、文昌鱼的masp基因,虾、水母等的胰蛋白酶基因和丝氨酸蛋白酶基因都有一定的同源性。 |