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Anne Manyande - One of the best experts on this subject based on the ideXlab platform.

Jixing Zou - One of the best experts on this subject based on the ideXlab platform.

  • Investigations on genetic diversity and relationships among Channa species using AFLP-capillary electrophoresis
    Indian Journal of Fisheries, 2018
    Co-Authors: Aiguo Zhou, Chao Wang, Yanfeng Chen, Shaolin Xie, Chaonan Zhang, Zhenlu Wang, Yongyong Feng, Jixing Zou
    Abstract:

    The genetic diversity and relationships among eight species of <em>Channa</em> were investigated using amplified fragment length polymorphism (AFLP)-capillary electrophoresis. Ten <em>EcoR</em> I/<em>Mse</em> I primer pairs were selected out of thirty eight and were used for further AFLP analysis. The total amplified bands, consistency of bands and polymorphic bands ranged from 114 to 206, from 0 to 12 and from 114 to 196, respectively, with corresponding averages of 156.2; 4 and 152.2 respectively. The proportion of polymorphic bands ranged from 93.62 to 100%, with an average of 97.44%. The similarity coefficients among eight <em>Channa</em> species ranged from 0.5365 to 0.7875. The dendrogram generated after unweighted pair-group method with arithmetic means (UPGMA) clustering with NTSYS software indicated that the eight <em>Channa</em> species could be divided into four major clusters according to the genetic similarity coefficient of 0.58. <em>Channa striata</em> and <em>Channa micropeltes</em> were clustered into a separate branch that was far from the other six species and <em>Channa argus kimurai</em> (Shih) was closest to<em> Channa argus</em>. These results could be useful for conservation as well as for guiding research on captive breeding of <em>Channa</em> species.

  • Molecular evidence of two colour morphs of northern snakehead (Channa argus) based on mitochondrial 12S rRNA
    Mitochondrial DNA. Part B Resources, 2017
    Co-Authors: Aiguo Zhou, Chao Wang, Yanfeng Chen, Shaolin Xie, Zhenlu Wang, Lanfen Fan, Jixing Zou
    Abstract:

    AbstractAs an unclassified species, white-type Channa argus has existed for many years. In the present study, the relationships and genetic diversity in two colour morphs of northern snakehead were determined by the analysis of mitochondrial 12S rRNA gene, as well as other Channa species. The results of sequence analysis showed that the average genetic distance was 0.046 with the interspecies genetic distance ranging from 0.000 to 0.130; and the average interspecies genetic distance was estimated as 0.003 (range: 0.000–0.006). For the two colour morphs of Channa argus, the mean pair-wise genetic distance between them was also estimated as 0.003. Moreover, molecular phylogenetic tree was constructed using MEGA6.0, which showed that all the haploids gathered together as a branch and crossed each other. These results indicated that the white and biocolour-type Channa argus belonged to the same species, rather than subspecies at the molecular level, and the white-type Channa argus should be regard as an albin...

  • Genetic comparison of two color morphs of northern snakehead (Channa argus) and Chnannidae family.
    Mitochondrial DNA. Part A DNA mapping sequencing and analysis, 2016
    Co-Authors: Aiguo Zhou, Chao Wang, Wenzhao Jiang, Li Zhengguang, Yanfeng Chen, Shaolin Xie, Junzhi Luo, Jixing Zou
    Abstract:

    Relationships of two species of Channa argus (northern snakeheads) named "Bicolor type" and "White type", as well as other six Channa species were investigated based on their partial sequence of mitochondrial DNA 16S rRNA genes in the present study. For the Channa family, the average genetic distance was 0.0863 with the inter-species genetic distance ranged from 0.0173 to 0.1384, and the average intra-species genetic distance in the genus Channa was estimated as 0.00273 (range: 0.0019 to 0.0038). For the two C. argus species, the mean pair-wise genetic distance between "Bicolor type" and "White type" northern snakehead was estimated as 0.00218, which was within the intra-species genetic distance interval for Channa species, indicating that they belonged to the same species at molecular level. Moreover, these snakeheads can be divided into two distinct groups via 16S rRNA, which might be more accurate for Channa classification than traditional method based on the absence or presence of the pelvic fins of the fish.

  • Comparative Analysis on the Serum Bilirubin and BUN of Hybrid Snakehead (Channa Argus♂ × Channa Maculate♀) and Its Parents
    2011
    Co-Authors: Guohua Yang, Shan Zhong, Ping Yang, Shenli Mao, Jixing Zou
    Abstract:

    A comparative study on the TBILI, DBILI, BUN of hybrid snakehead and its parents was con- ducted by Automatic Biochemical Analyzer. The results based on statistical analysis showed that the TBILI of hybrid snakehead was not significantly different from femail parent Channa maculata, while was signifi- cantly different from male parent Channa argus(P < 0.05), but the DBILI and BUN of hybrid snakehead were not significantly different from male parent Channa argus, while were significantly different from femail parent Channa maculata(P < 0.05), so it could be inferred that the inherited character of hybrid snakehead is the same with female parent, but is different from male parent refered to TBILI, while the inherited character of hybrid snakehead is the same with male parent, but is different from female parent refered to DBILI and BUN.

Qun Wang - One of the best experts on this subject based on the ideXlab platform.

  • the complete mitochondrial genome of Channa argus Channa maculata and hybrid snakehead fish Channa maculata Channa argus
    Mitochondrial DNA, 2013
    Co-Authors: Shu-ren Zhu, Zhijun Xing, Nan Xie, Yuxi Wang, Qun Wang
    Abstract:

    We sequenced and characterized the complete mitochondrial genome of Channa argus, Channa maculata and their hybrid [C. maculata (♀) and C. argus (♂)]. All the three mitochondrial genomes contained the typical complement of 13 protein-coding genes, 22 transfer RNAs (tRNAs), 2 ribosomal RNAs (rRNAs) and 1 control region. The entire mitochondrial DNA (mtDNA) molecule of C. maculata was 16,559 bp long while the complete mtDNA molecule of C. argus and hybrid snakehead fish was 16,558 bp long. This is the first report on the complete mitogenome sequence of C. maculata and hybrid snakehead fish.

  • The complete mitochondrial genome of Channa argus, Channa maculata and hybrid snakehead fish [Channa maculata (♀) × Channa argus (♂)]
    Mitochondrial DNA, 2013
    Co-Authors: Shu-ren Zhu, Zhijun Xing, Nan Xie, Yuxi Wang, Qun Wang
    Abstract:

    We sequenced and characterized the complete mitochondrial genome of Channa argus, Channa maculata and their hybrid [C. maculata (♀) and C. argus (♂)]. All the three mitochondrial genomes contained the typical complement of 13 protein-coding genes, 22 transfer RNAs (tRNAs), 2 ribosomal RNAs (rRNAs) and 1 control region. The entire mitochondrial DNA (mtDNA) molecule of C. maculata was 16,559 bp long while the complete mtDNA molecule of C. argus and hybrid snakehead fish was 16,558 bp long. This is the first report on the complete mitogenome sequence of C. maculata and hybrid snakehead fish.

  • Identification of Channa species using the partial cytochrome c oxidase subunit I (COI) gene as a DNA barcoding marker
    Biochemical Systematics and Ecology, 2013
    Co-Authors: Shu-ren Zhu, Qun Wang
    Abstract:

    The snakehead fish of the genus Channa are an important food fish in China. However, the molecular identification and phylogeny of this genus is poorly understood. Here, we present the utility of partial sequences of the COI gene for use in DNA barcoding for the identification of Channa individuals, which includes four species: Channa argus, Channa maculata, Channa asiatica, and Channa striata. A total of 19 haplotypes were identified in this study. The interspecific K2P distances were higher than intraspecific distances. The lowest interspecific distance (0.091) was between C. argus and C. maculata while the highest interspecific distance (0.219) was between C. argus and C. striata. No intraspecific–interspecific distance overlaps were observed, and a distinct barcoding gap was found between intraspecific and interspecific distances in each species. Our results showed that the partial COI gene is an effective DNA barcoding marker for identifying Channa species.

Jin Zhang - One of the best experts on this subject based on the ideXlab platform.

Ramon Fontanillas - One of the best experts on this subject based on the ideXlab platform.

  • Effects of dietary protein and lipid levels on growth, body composition and nutrient utilization of Channa striata
    Aquaculture, 2019
    Co-Authors: Katheline Hua, Wolfgang Koppe, Ramon Fontanillas
    Abstract:

    Abstract Very limited information is available on nutrient requirements of Channa striata, particularly during the grow-out stage. A study was carried out to study the requirement and utilization of protein and lipid by Channa striata growing from 31 g to ~ 200 g. Nine experimental diets with graded levels of dietary protein and lipid were formulated using practical ingredients. Increasing dietary crude protein content from 43.4% to 55.6% at 11% dietary lipid content resulted in increases of weight gain, amount of feed consumed, specific growth rate, and thermal-unit growth coefficient. The crude protein requirement of Channa striata was estimated by the saturation kinetics model to be 51.6% dry matter (DM) for growth and 52.1% DM for protein deposition. On the digestible protein basis, the requirement of Channa striata was estimated to be 47.2% DM for growth and 47.8% DM for protein deposition. Increasing lipid content in diets from 7.5% to 23.1% in this study resulted in linear decreases of fish growth and feed intake. Apparently Channa striata cannot tolerate high dietary lipid levels; lipid levels of >19% DM could negatively affect growth performance. It was also revealed that dietary lipids did not have a protein-sparing effect in Channa striata. Results from this study not only contribute to a better understanding of the nutrient requirement and utilization of Channa striata, but also would be helpful for the development of cost-effective sustainable practical feed formulations for this fish species.