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首页> 外文期刊>Bangladesh journal of fisheries research >Allozyme variation in four hatchery populations of Thai pangas, Pangasius hypophthalmusm Bogra, Bangladesh
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Allozyme variation in four hatchery populations of Thai pangas, Pangasius hypophthalmusm Bogra, Bangladesh

机译：孟加拉国Pangasius hypophthalmusm Bogra，泰国Pangas的四个孵化场种群中的同工酶变异

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摘要

Genetic variation of four hatchery stocks of Thai pangas, Pangasius hypophthalmu of Bogra region, Bangladesh was studied from 1 January 2002 to 31 December 2003. Muscle samples were collected for allozyme analysis from four (Bhai-Bhai, Jahangir, Belaland Bhai-Bon) different hatchery populations. For allozyme electrophoresis, eight enzymes were used and 11 loci viz. Adh-1*, Est-1*, G3pdh-1*, Gpi-1*, Gpi-2*, Idhp-1*, Ldh-1*, Ldh-2*, Mdh-1*, A4dh-2*and Pgm* were identified , of which three loci (Est-1*, Gpi-2*, G3pdh-land Pgm*) were polymorphic in all the four populations. The mean proportion of polymorphic loci per population and the mean proportion of heterozygous loci per individual was 36.36% and 13.33, respectively for all the population studied.The highest variability measured by the mean number of alleles per locus was 1.545 in Bhai-Bon hatchery population. Based on Nei's (1972) genetic distance, the dendrogram (UPGMA) shows that four populations have made two clusters by D-value (D= 0.043).Bhai-Bhai and Jahangir hatchery populations have made cluster-I, and Belal Uddin and Bhai-Bon hatchery populations formed cluster-II. Among the four populations, Bhai-Bhai and Jahangir hatchery populations were differentiated from each other by the D-value of 0.013, and Belal Uddin and Bhai-Bon populations were differentiated from each other by the D-value of 0.002, which suggests that the four populations may be fallen into the local population or race.
机译：2002年1月1日至2003年12月31日，对孟加拉国博格拉地区Pangasius hypophthalmu的泰国Pangas四种孵化场种群的遗传变异进行了研究。收集了四个不同物种（Bhai-Bhai，Jahangir，Belaland Bhai-Bon-Bon）的肌肉样本进行同工酶分析。孵化场人口。对于同工酶电泳，使用了8种酶和11个基因座。 Adh-1 *，Est-1 *，G3pdh-1 *，Gpi-1 *，Gpi-2 *，Idhp-1 *，Ldh-1 *，Ldh-2 *，Mdh-1 *，A4dh-2 *和鉴定出Pgm *，其中三个位点（Est-1 *，Gpi-2 *，G3pdh-land Pgm *）在所有四个种群中都是多态的。在所有研究种群中，每个种群的多态性基因座平均比例和每个个体的杂合基因座平均比例分别为36.36％和13.33.Bhai-Bon孵化场种群中以每个位点的等位基因平均数衡量的最高变异性为1.545 。根据Nei（1972）的遗传距离，树状图（UPGMA）显示四个种群按D值形成两个聚类（D = 0.043），其中Bhai-Bhai和Jahangir孵化场种群为I类，而Belal Uddin和Bhai -邦孵化场人口形成集群-II。在这四个种群中，Bhai-Bhai和Jahangir孵化场种群之间的D值为0.013，Belal Uddin和Bhai-Bon种群之间的D值为0.002，这表明四个人口可能属于当地人口或种族。

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