Comparison of morphology and genetic diversity between broodstock and hybrid offspring of oriental river prawn, Macrobrachium nipponense based on morphological analysis and SNP markers

Autor:	Xinglin Du, Yiming Li, Yinying Huang, Wujiang Fan, Zhiquan Liu, Yunlong Zhao, Youhui Huang, Yingying Huang
Rok vydání:	2021
Předmět:	Genetic Markers 0301 basic medicine Population Zoology Broodstock Breeding Subspecies Biology Polymorphism Single Nucleotide Nucleotide diversity 03 medical and health sciences Genetics Animals Animal Husbandry education education.field_of_study Genetic diversity 0402 animal and dairy science Genetic Variation 04 agricultural and veterinary sciences General Medicine 040201 dairy & animal science 030104 developmental biology Genetic marker Morphological analysis Hybridization Genetic Animal Science and Zoology Palaemonidae Macrobrachium nipponense
Zdroj:	Animal Genetics. 52:461-471
ISSN:	1365-2052 0268-9146
DOI:	10.1111/age.13081
Popis:	Hybridization is an effective method for the genetic improvement of farmed species. In this study, three broodstock populations (Changjiang, CJ, Dongting, DT, and Dianshan, DS) of oriental river prawn, Macrobrachium nipponense were used, and DS was used as the female broodstock. Through three-line hybridization, two hybrid populations were finally obtained. The F3 generation of the broodstock population and the F1 generation of the hybrid population were cultured indoors for 3 months. Through morphological analysis (cluster analysis, discriminant analysis and path analysis) it was found that the hybrid population and the broodstock had some differences, but not enough to reach the subspecies level, and the dominant traits exhibited differentiation and reorganization. This study identified SNP genetic markers, carried out systematic evolution analysis and genetic diversity analysis and found that the nucleotide diversity π and heterozygosity Het of the hybrid population were higher than those of the broodstock. Among broodstocks, the differentiation index (Fst ) of SCD and SDC was smallest (0.055). This research provides some valuable reference for genetic breeding.
Databáze:	OpenAIRE
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