Jiang Ping-Ping, Fang Sheng-Gou, Ding Ping
College of Life Sciences, Zhejiang University, Hangzhou, PR China.
Anim Biotechnol. 2005;16(1):11-5. doi: 10.1081/abio-200053396.
Control region sequence, an mtDNA marker, was usually used in phylogenesis analysis in species level or genetic structure study among populations. In this study, enlightened by its character of maternal heredity in vertebrates, we used control region sequence as a matrilineage marker for Elliot's pheasant (Syrmaticus ellioti) of Ningbo Zoo population. In Ningbo Zoo, 36 individuals of Elliot's pheasant were descendants from three female founders introduced in 1988. Three control region haplotypes (Ha, Hb, Hc) were identified by six variable nucleotide positions among the control region sequences over 36 individuals. The number of haplotypes was accorded with the number of female founders. Total 20 individuals (C04, C06, C08-11, C14, C20, C21, C23-29, C32, C34-36) shared haplotype a, while 12 individuals (C01, C05, C07, C12, C13, C16-19, C22, C30, C33) shared haplotype b and 4 individuals (C02, C03, C15, C31) shared haplotype c. Those individuals sharing the same haplotype were offspring from one female founder. In other words, there were three maternal lineages and the simple relationship among individuals was indicated. As a result, it seemed that the control region sequence was a useful marker for identification of matrilineage in this study. Meanwhile, the matrilineage information may be compensatory data if there were no any pedigree records in captive species for breeding management.
控制区序列作为一种线粒体DNA标记,通常用于物种水平的系统发育分析或群体间的遗传结构研究。在本研究中,受其在脊椎动物中母系遗传特性的启发,我们将控制区序列用作宁波动物园白颈长尾雉(Syrmaticus ellioti)种群的母系谱系标记。在宁波动物园,36只白颈长尾雉个体是1988年引入的三只雌性奠基者的后代。通过对36个个体的控制区序列中的六个可变核苷酸位置进行分析,鉴定出三种控制区单倍型(Ha、Hb、Hc)。单倍型的数量与雌性奠基者的数量一致。共有20个个体(C04、C06、C08 - 11、C14、C20、C21、C23 - 29、C32、C34 - 36)共享单倍型a,12个个体(C01、C05、C07、C12、C13、C16 - 19、C22、C30、C33)共享单倍型b,4个个体(C02、C03、C15、C31)共享单倍型c。那些共享相同单倍型的个体是来自一位雌性奠基者的后代。换句话说,存在三个母系谱系,表明了个体间的简单关系。结果表明,在本研究中控制区序列似乎是用于鉴定母系谱系的有用标记。同时,如果圈养物种没有任何系谱记录用于繁殖管理,母系谱系信息可能是补充数据。