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TY  - JOUR
AU  - Nehemia, Alex 
AU  - Mwakalesi,  Alinanuswe J. 
PY  - 2024/01/31
Y2  - 2025/07/31
TI  - Population Genetic Structure and Demographic History of Opsaridium microcephulum along Lake Nyasa
JF  - Tanzania Journal of Science
JA  - Tanz. J. Sci.
VL  - 49
IS  - 5
SE  - Biological Sciences
DO  - 
UR  - https://tjs.udsm.ac.tz/index.php/tjs/article/view/1663
SP  - 1028-1037
AB  - &lt;p class=&quot;western&quot; align=&quot;justify&quot;&gt;&lt;span style=&quot;font-family: Calibri, sans-serif;&quot;&gt;&lt;span style=&quot;font-size: small;&quot;&gt;&lt;span style=&quot;font-family: Times New Roman, serif;&quot;&gt;&lt;span lang=&quot;en-GB&quot;&gt;The Sanjika, &lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-family: Times New Roman, serif;&quot;&gt;&lt;span lang=&quot;en-GB&quot;&gt;&lt;em&gt;Opsaridium&lt;/em&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-family: Times New Roman, serif;&quot;&gt;&lt;span lang=&quot;en-GB&quot;&gt;&lt;em&gt; microcephalum &lt;/em&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-family: Times New Roman, serif;&quot;&gt;&lt;span lang=&quot;en-GB&quot;&gt;is among the fish species that serve as a major source of proteins and income to people &lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-family: Times New Roman, serif;&quot;&gt;&lt;span lang=&quot;en-GB&quot;&gt;along Lake Nyasa. However, the information on its genetic diversity and structure particularly in the Tanzania part of the Lake is limited. Therefore, the assessment of the genetic diversity and structure of &lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-family: Times New Roman, serif;&quot;&gt;&lt;span lang=&quot;en-GB&quot;&gt;&lt;em&gt;O.&lt;/em&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-family: Times New Roman, serif;&quot;&gt;&lt;span lang=&quot;en-GB&quot;&gt;&lt;em&gt;microcephalum &lt;/em&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-family: Times New Roman, serif;&quot;&gt;&lt;span lang=&quot;en-GB&quot;&gt;along the Lake Nyasa part of Tanzania was conducted in the current study using a fragment of the mitochondrial COI gene from 92 individuals of &lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-family: Times New Roman, serif;&quot;&gt;&lt;span lang=&quot;en-GB&quot;&gt;&lt;em&gt;O.&lt;/em&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-family: Times New Roman, serif;&quot;&gt;&lt;span lang=&quot;en-GB&quot;&gt;&lt;em&gt; microcephalum&lt;/em&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-family: Times New Roman, serif;&quot;&gt;&lt;span lang=&quot;en-GB&quot;&gt;. The findings showed that an average haplotype diversity and average nucleotide diversity were 0.8065&amp;nbsp;±&amp;nbsp;0.0314 and 0.002380&amp;nbsp;±&amp;nbsp;0.001640, respectively. The molecular Variance (AMOVA) indicated significant genetic variations among the subpopulations studied (Overall Φ&lt;/span&gt;&lt;/span&gt;&lt;sub&gt;&lt;span style=&quot;font-family: Times New Roman, serif;&quot;&gt;&lt;span lang=&quot;en-GB&quot;&gt;st&lt;/span&gt;&lt;/span&gt;&lt;/sub&gt;&lt;span style=&quot;font-family: Times New Roman, serif;&quot;&gt;&lt;span lang=&quot;en-GB&quot;&gt; = 0.31560,&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-family: Times New Roman, serif;&quot;&gt;&lt;span lang=&quot;en-GB&quot;&gt;&lt;em&gt; p &amp;lt; 0.001&lt;/em&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-family: Times New Roman, serif;&quot;&gt;&lt;span lang=&quot;en-GB&quot;&gt;). The lowest haplotype diversity was recorded at Manda and the highest haplotype diversity was recorded at Buloma. The lowest nucleotide diversity was recorded at Manda and the highest was recorded at Lupingu. The differences in genetic diversity can be a possible indicator of different localised evolutionary forces that require attention to conservationists for the sustainable management of &lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-family: Times New Roman, serif;&quot;&gt;&lt;span lang=&quot;en-GB&quot;&gt;&lt;em&gt;O.&lt;/em&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-family: Times New Roman, serif;&quot;&gt;&lt;span lang=&quot;en-GB&quot;&gt;&lt;em&gt; microcephalum&lt;/em&gt;&lt;/span&gt;&lt;/span&gt;&lt;span style=&quot;font-family: Times New Roman, serif;&quot;&gt;&lt;span lang=&quot;en-GB&quot;&gt;.&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
ER  -