CHARACTERIZATION OF CHANNA MARULIUS POPULATIONS IN VARIOUS WATER BODIES OF PUNJAB, PAKISTAN

Ehsan Mehmood Bhatti, Naureen Aziz Qureshi, Fayyaz Rasool, Muhammad Siddique and Abu Baker Siddiqui

Résumé:

In  Pakistan  the  work  on  genetic  of  different  populations  of Channa  marulius have  not  been  performed  so  for  and  the Clustering analysis was done  to find out the  intraspecific variations among different populations of Channa marulius using Pearson  Correlation  Coefficient  method  based  on  Unweighted  Pair  Group  Method  with  Arithmetic  Mean  (UPGMA)  by XLSTAT 2012 (version 1.02). 50 samples of C. marulius populations were collected from five different geographical sites of natural  waters  viz.,  Chashma  Barrage  at River  Indus  (District  Mianwali),  Qadirabad  Barrage  at  the  River  Chenab  (District Gujranwala), Balloki Barrage at River Ravi (District Kasur), Trimmu Barrage at the junction of Chenab and Jhelum Rivers (District  Jhang)  and  Taunsa  Barrage  at  Indus  River  (Tehsil  Kot  Addu  District  Muzaffar  Garh).    Dendrogram  generated  by RAPD data of representative samples of each site divided the populations of C. marulius into four major clusters. The results of  the  studies  clearly  indicate  that  variance  decomposition  for  the optimal  classification  values  remained  as,  65.90%  for within class variation  while 34.10% for the between class differences. The distance between the class/cluster centroids was 1.737 for class 1 and 2, 1.105 for 1 and 3, 1.009 for 1 and 4, 1.500 for class 2 and 3, 2.000 for 2 and 4, while this distance between class 3 and 4 was 1.500. Quantifiable differentiation among various species of C. marulius revealed the impacts of changing environment and other possible factors

Revue:

Pakistan Journal of Agricultural Sciences

Lien:

pakjas.com.pk/papers%5C2308.pdf