| 1. | Chinese alligator ( alligator sinensis ) is an endemic endangered species in china
扬子鳄是一濒危物种，也是中国特有的珍稀爬行动物。 |
| 2. | In addition , somatostatin - ir cells were the most of all ir - cells in alligator mississippiensis before hatching , but in alligator sinensis it were glucagon - ir cells
同时，在孵出前胰腺中，密河鳄以ss阳性细胞最多，扬子鳄以glu细胞最多。 |
| 3. | Ss - ir cells , 5 - ht - ir cells , pp - ir cells , tgf p 1 - ir cells and sp - ir cells were found in the esophagus , the stomach and the duodenum of alligator sinensis embryos
在胚胎发育后期，消化道中以胃的内分泌细胞数量和种类最多，也是内分泌调控最重要的部位，其次是十二指肠。 |
| 4. | 2 . the dmrt1 gene of alligator sinensis was amplified by using a pair of special primers which can amplify the conservative motif ( dm domain ) of human dmrt1 gene , and then it was sequenced
2 、参照人dmrt1基因dm盒保守区的序列，设计一对特异引物，扩增了扬子鳄的dmrt1基因，并对扩增产物进行了sscp分析和测序。 |
| 5. | All endocrine cells in the pancreas of alligator sinensis embryos distributed separately in the early days . but a few gathered together from the midterm of development toward hatching stage
另外，在扬子鳄胚胎胰腺中，内分泌细胞在早期都是单个分散分布，中期出现细胞群，在孵出前大多数单个分散分布，少数成群分布。 |
| 6. | There was some difference between alligator sinensis and alligator mississippiensis in the development of the pancreas1 endocrine cells . for example , pancreatic polypeptide - ir cells appeared earlier in alligator sinensis than in alligator mississippiensis
扬子鳄胚胎胰腺内分泌细胞的发生与密河鳄有一定差别，其中pp阳性细胞出现的时间早于密河鳄。 |
| 7. | The sequence analysis showed that the identities of alligator sinensis dmrt1 gene to human dmrt1 gene in the dna sequence and the amino acid sequence were 87 % and 95 % , respectively . the results indicated that dmrt genes were highly conservative in phylogeny
( 3 )测序结果表明，雌雄扬子鳄dmrt1基因的序列一致，且其dna序列和编码的氨基酸序列与人相应dmrt1基因的相似性分别为87 %和95 % 。 |
| 8. | This paper researched the behaviors and time budgets of captive - bred chinese alligator ， and discussed the taxonomical status of chinese alligator ( alligator sinensis ) and the phylogeny of the reptiles based on the sequences of nt - 3 and bdnf genes
本论文对涉及饲养条件下夏秋两季扬子鳄的行为和活动时间分配进行了研究，同时基于nt - 3和bdnf基因部分序列探讨了扬子鳄的分类地位和爬行动物的系统发生。 |
| 9. | In addition , insulin - ir cell , chromogranin - a - ir cell , testosterone - ir cell and epithelial membrane antigen - ir cell were not detected in the digestive tract of alligator sinensis embryos . the kinds and the numbers of endocrine cells in the digestive tract and glands were less at early prenatal stages but increased greatly in the midterm of development . in the digestive tract of last prenatal stages , it was stomach that had the most endocrine cells and might play the most important role in regulating the growth and differentiation of the digestive tract , the duodenum was in the second place
纵观扬子鳄胚胎消化道和消化腺内分泌细胞发生的情况，可得出如下结论： ）胚胎发育早期，胰腺内分泌细胞的数量和种类较多，可能是早期胚胎重要的内分泌调控部位；胚胎中期消化道和消化腺内分泌细胞的数量和种类增加最多，是内分泌细胞分化发育的重要时期：胚胎晚期，以胰腺和幽门、十二指肠的内分泌细胞最密集，为孵出后的消化和吸收的功能调控做好生理准备。 |
| 10. | The length of amplification was 140bp in both male and female , which was consistent with that of human dmrt1 gene . the result of sscp analysis showed that there were many differences in the dmrt1 gene sequence between alligator sinensis and human , but no differences between male and female alligator sinensis
结果显示： ( 1 )扬子鳄dmrt1基因的扩增片段与人dmrt1基因扩增片段的大小相同，均为140bp ； ( 2 )雌雄扬子鳄dmrt1基因扩增片段大小虽然与人相同，但其单链迁移率与人有较大差异，而雌雄个体间无差异。 |
