本文选用牛科动物性染色体上睾丸分化基因及牙釉质蛋白基因的三对特异性引物XY-1/XY-2,SE47/SE48,Y-1/Y-2,首先通过对已知性别的皮张样品进行性别鉴定验证,确定性别鉴定的准确性为100％后,再以可可西里自然保护区卓乃湖地区及新疆阿尔金山自然保护区两大藏羚羊产羔地的藏羚羊胎盘为研究对象,氯仿异戊醇法进行DNA抽提后,利用三对引物鉴定胎盘性别,即藏羚羊新生胎儿性别。
The Common Pheasant,Phasianus colchicus is distributed throughout temperate regions in East and Central Asia,and had been widely introduced into Europe and North America as a game bird.
The watchdog(canis familiaris),the worlds oldest domesticate,is a very close relative of the grey wolf(Canis lupus)and the two species diverged anywhere from 145 00 to 15 000 years ago.
为明确我国六种犬科动物,狼、豺、貉、赤狐、沙狐、藏狐线粒体基因组特点及其与其他犬科动物的系统进化关系,同时为进一步探讨我国各主要分布区狼的系统发育关系和亚种划分问题.
岩羊(Pseudois nayaur)隶属于牛科(Bovidae)、羊亚科(Caprinae)、岩羊属(Pseudois),主要分布在中国、印度、巴基斯坦、锡金、克什米尔和尼泊尔等国,在我国主要分布于四川、内蒙古、宁夏、云南、西藏、新疆、甘肃和青海等地.岩羊到底包含有几个亚种尚存有疑问,同时不同地理居群之间的谱系关系也有一定争议.
利用二代测序平台对来自非洲、亚洲、欧洲、中东、北美洲等不同地区的狼、狗进行了高覆盖的全基因组测序,产生了34 个犬科动物的高质量全基因组数据,利用全基因组数据进行了较深入的比较基因组学分析.
Cetaceans are active divers since its transition from land to water.Current studies show that hypoxia induced by prolong submerge is a prominent challenge for cetaceans,however,its molecular basis rem
Inferring the mechanisms shaping current genetic structure is one of the most important issues in population genetics and evolutionary biology.The omei treefrog,Rhacophorus omeimontis,is ecologically
Cetaceans(whales,dolphins,and porpoises),the highly specialized order of mammals,are a group of secondarily adapted marine mammals with an enigmatic history of transition from terrestrial to full aqua
small cetaceans were regarded as good bio-indicators for coastal environmental health.The present research has assessed the accumulation of trace elements in three tissues(kidney,liver and muscle)of f