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Comparative Analysis of Genetic Structure and Diversity in Larimichthys polyactis, Larimichthys crocea, and Their Reciprocal Hybrids Based on Microsatellite Loci

文献类型： 外文期刊

作者： Wang, Zehui 1 ; Guo, Dandan 2 ; Xie, Qingping 2 ; Wei, Fuliang 2 ; Jiang, Lin 1 ; Liu, Feng 2 ; Ye, Ting 2 ; Lou, Bao 2 ;

作者机构： 1.Zhejiang Ocean Univ, Coll Marine Sci & Technol, Zhoushan 316021, Peoples R China

2.Zhejiang Acad Agr Sci, Inst Hydrobiol, Zhejiang Key Lab Coastal Biol Germplasm Resources, State Key Lab Qual & Safety Agroprod, Hangzhou 310021, Peoples R China

关键词： distant hybridization; hybrid yellow croaker; genetic diversity; genetic structure

期刊名称：ANIMALS （ 影响因子：2.7； 五年影响因子：3.2 ）

ISSN： 2076-2615

年卷期： 2025 年 15 卷 10 期

页码：

收录情况： SCI

摘要： In this study, we compared the genetic diversity and structure of small yellow croaker (Larimichthys polyactis, LP), large yellow croaker (Larimichthys crocea, LC), and their reciprocal hybrids (LP female x LC male (LCP) and LC female x LP male (LPC)) using 14 microsatellite loci. Our results revealed that genetic diversity was highest in LCP, followed by LP and LPC, with LC exhibiting the lowest level. Additionally, among the two hybrid progenies, the number of loci in LCP deviating from Hardy-Weinberg equilibrium was lower. This suggests that LCP is a more appropriate choice as breeding material and has the potential to enhance germplasm resources. Based on the analysis of 14 microsatellite loci, we observed that both hybrid species clustered with their respective maternal parents. Specifically, LPC exhibited a closer genetic relationship to its maternal parent than LCP did. Furthermore, the majority of genes in LPC were inherited from its maternal parent (LP). In the LCP population, approximately 63% of individuals possessed gene profiles similar to those observed in LPC, while the remaining individuals displayed a mix from both parents. This study provides a strategic direction for the efficient utilization and management of novel germplasm resources in hybrid yellow croaker. Hybrid yellow croaker serves as an intermediate breeding material, playing a significant role in the genetic improvement of Larimichthys crocea and Larimichthys polyactis.

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