Bài viết nghiên cứu các thông tin di truyền của các dòng cá rô phi vằn phục vụ các nghiên cứu về lựa chọn các quần đàn cá bố mẹ thích hợp khi đưa vào chương trình chọn giống tiếp theo. Để nắm chi tiết nội dung nghiên cứu bài viết. | Đặc điểm di truyền một số quần đàn cá rô phi vằn (Oreochromis niloticus) qua phân tích chỉ thị microsatellite 52 Tr÷íng ¤i håc Næng L¥m TP. Hç Ch½ Minh Genetic characteristics in four farmed tilapia (Oreochromis niloticus ) populations evaluated by microsatellite markers Ha T. T. Tran1∗ , Trang T. Vu1 , Nam P. Nguyen2 , Giang T. H. Luu1 , Nhat H. Pham1 , & Diep H. Nguyen1 1 Research Institute for Aquaculture No. 1, Bac Ninh, Vietnam 2 Faculty of Biotechnology, Vietnam National University of Agriculture, Ha Noi, Vietnam ARTICLE INFO ABSTRACT Research Paper In this study, genetic characteristics of four tilapia strains including NOVIT4, 13th GIFT generation, China and Philippine were investigated Received: May 16, 2019 by analysis the genotype at 6 microsatellite loci. It was found that all loci Revised: October 03, 2019 showed high polymorphism with 51 identified alleles, in which GM139 and Accepted: October 07, 2019 UNH995 loci were the highest polymorphism with the appearance of 14 and 11 alleles, respectively. Deficiency of expected heterozygosity occurred Keywords in all tilapia strains, the Ho value of which was lower than the He one. Besides, 17/24 loci was significantly different from the Hardy-Weinberg principle (P < 0,05). The Fst ranging from to indicated that Genetic diversity the genetic difference among populations was small. However, the analysis Microsatellite of molecular variance (AMOVA) showed that the genetic diversity at the Nile tilapia molecular level among individuals within the same population and among individuals were high, corresponding to and 61%, respectively. The ∗ Corresponding author findings of this study are useful in term of giving the genetic information of four Nile tilapia strains for the selective breeding program. Tr¦n Thà Thóy H Email: thuyha@ Cited as: Tran, H. T. T., Vu, T. T., Nguyen, N. P., Luu, G. T. H., Pham, N. H., &
