测定了37只中国大陆梅花鹿（Cervusnippon）不同种群mtDNA控制区5端351bp的序列，共发现23个变异位点，定义了5种单元型。分子变异分析表明，中国大陆梅花鹿出现了显著的种群分化（Фst=0.45，Fst=0.60，P<0.001），支持把分布于东北、华南和四川的梅花鹿种群归入各自独立的管理单元。中国大陆、日本南部和日本北部之间无共享单元型，且有25个鉴别位点。最小跨度网络图（Minimumspanningnetwork，MSN）和基于最大似然法和邻接法的系统发生分析均把单元型聚类为对应于中国大陆、日本南部和日本北部的三个单系，其中中国大陆和日本南部梅花鹿有相对较近的亲缘关系，支持日本梅花鹿的祖先通过至少两个大陆桥从亚洲迁移到日本的观点[动物学报49（1）：53～60，2003]。

采用漩涡模型Vortex mondel 7.3，模拟了马边大风顶自然保护区大熊猫种群在未来100年内的变动趋势。结果显示：在无交配限制、无密度制约、无近亲交配衰退等条件下，马边大风顶自然保护区大熊猫种群数量呈下降趋势；在考虑近交衰退的影响后，遗传多样性水平降低，灭绝率提高；竹子开花虽能加速大熊猫种群的绝灭，但由于保护区分布有多个竹种，因此并不会对大熊猫种群产生灾难性影响；但是人为捕杀可迅速减少大熊猫种群数量，加速其灭绝过程。因此，对该保护区大熊猫进行保护的最重要措施就是严格控制人为捕杀，并保护栖息地及走廊带。

主要组织相容性复合体（major histocompatibility complex, MHC）是脊椎动物体内与免疫应答调节密切相关的一个基因家族，是基因组中多态性最丰富的区域。通过MHC的遗传变异分析可以提供物种的遗传多样性水平、进化历史和种群动态，以及种群遗传结构等信息，并在濒危物种饲养繁殖种群的遗传管理中有重要应用。

测定了采自浙江省瑞安市的一头须鲸类标本的线粒体DNA（mitochondrial DNA，mtDNA）细胞色素b（cytochrome b, cyt b）基因369 bp和控制区（control region）933 bp的序列，通过与已发表的须鲸类同源序列比对，发现与西太平洋和日本水域的布氏鲸的cyt b基因和控制区分别有6.78%～7.05%和13.30%<14.40%的序列差异，而与来自所罗门群岛的的布氏鲸之间cyt b基因的序列完全相同，控制区的序列也仪相差一个碱基（0.28%）。提示与邻近的西太平洋和日本海的普通布氏鲸在遗传上有显著区别，而可能与所罗门群岛的布氏鲸为同一种，即小布氏鲸（Balaenoptera edeni）。同时表明，应用分子生物学手段来进行鲸肉及其制品的种类鉴定是可行和有效的。

The mitochondial cont rol regions from 13 st riped dolphins (S tenella coeruleualba), seven from the southern Taiwan St rait s (Dongshan waters) and the other six from the southern East China Sea (Pingtan waters), were amplified by using polymerase chain reaction (PCR) technique. The complete nucleotide composition of this region, ranged from 914 to 917 base pairs (bp), were determined by an ABI 310 DNA automated sequencing system to address the sequence variability. 42 variable sites, including 36 transitions, three t ransversions, and three indels (insertion/ deletion) were found. Of the variable sites, 26 were parsimonious informative sites. Totally 11 haplotypes were identified. Of the haplotypes, six were found exclusively in Dongshan waters and the rest five only in Pingtan waters. No common haplotype was shared, and two fixed site differences were detected between haplotypes from two waters. The haplotype diversty and nucleotide diversity were high for both waters, which were 1.45% ±0.79% and 0.95 in Dongshan waters, and 1.06% ±0.51% and 0193 in Pingtan waters respectively. A phylogenetic t ree was reconst ructed by using neighbor-joining (NJ) method in MEGA (Molecular Evolutionary Genetic Analysis) package. In the t ree, haplotypes from the Pingtan waters constituted a monophyletic clade, whereas haplotypes from the Dongshan waters did not. Analysis of molecular variance, which was conducted by computer software AMOVA, showed an significant population differentiation and genetic st ructure (Φst =0.35, P<0.01) between Dongshan waters and Pingtan waters. The haplotype diversity and nucleotide diversity of st riped dolphins were higher than those found in the sympat ric finless porpoise (Neophocaena phocaenoides) populations, and also higher than those of other cetacean species reported previously in other waters, including some species having high level of genetic diversity, e. g. harbor porpoises (Phocoena phocoena), humpback whales (Megaptera novaeangliae) and bottlenose dolphins (Tursiops spp.) etc. This suggested that the st riped dolphins had a relatively higher genetic diversity.