Publication Date:
2021-05-19
Description:
In this study, two population of Molokaei and High health were selected as zero generation of Litopenaeus
vannamei broodstocks. After mating males and females adult within inbreeding and crossbreeding three various
storage were produced: H♂ × M♀, M♂ × H♀ and H♀ × H♂. The second generation of shrimp were obtained
from storage of broodstocks (MH) first generation. The aim of this study was investigated close relationship
between different generations of specific pathogenic free shrimp. The analysis d-loop region of mitochondrial
genomes of different generations shrimp was observed 997 positions with 3-6 and 766-799 of haplotype and
monomorphic, respectively. Despite haplotype diversity and nucleotide diversity of all generations SPF shrimp
were 0.877 and 0.12, respectively. But, results showed homozygosity rate is increasing from one generation to
next generation, so low genetic distance were observed between different generations of SPF shrimp certain
disease-free shrimp. Regarding the results of in this study can be concluded that lack of arriving new
broodstocks from outside the country and was mating between adult males and females relative (full-sib)
addition to small effective population size there was both genetic drift and number of haplotypes was gradually
reduced from zero generation to second generation. Hence, due to the high close relationship between different
generations shrimp evaluation of d-loop region of the mitochondrial genome were little genetic difference
between them
Description:
Iranian Fisheries Science Research Institute
Description:
Published
Keywords:
Litopenaeus vannamei
;
Mitochondrial genome
;
D-loop region
;
Close relationship
;
Population
;
Males
;
Females
;
Adult
Repository Name:
AquaDocs
Type:
Report
,
Refereed
Format:
54pp.
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