Assessment of the Genetic Diversity and Structure of the Korean Endemic Freshwater Fish <i>Microphysogobio longidorsalis</i> (Gobioninae) Using Microsatellite Markers: A First Glance from Population Genetics

<i>Microphysogobio longidorsalis</i> is endemic to South Korea and inhabits small areas of the Namhangang, Bukhangang, and Imjingang Rivers in the Hangang River water system. Endemic species usually are more vulnerable than species with a wide distribution. Notably, there is a lack of ba...

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Main Authors: Kang-Rae Kim, Mu-Sung Sung, Yujin Hwang, Ju Hui Jeong, Jeong-Nam Yu
Format: Article
Language:English
Published: MDPI AG 2024-01-01
Series:Genes
Subjects:
Online Access:https://www.mdpi.com/2073-4425/15/1/69
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author Kang-Rae Kim
Mu-Sung Sung
Yujin Hwang
Ju Hui Jeong
Jeong-Nam Yu
author_facet Kang-Rae Kim
Mu-Sung Sung
Yujin Hwang
Ju Hui Jeong
Jeong-Nam Yu
author_sort Kang-Rae Kim
collection DOAJ
description <i>Microphysogobio longidorsalis</i> is endemic to South Korea and inhabits small areas of the Namhangang, Bukhangang, and Imjingang Rivers in the Hangang River water system. Endemic species usually are more vulnerable than species with a wide distribution. Notably, there is a lack of basic conservation data for <i>M. longidorsalis</i>. We analyzed 19 microsatellite loci in six populations of <i>M. longidorsalis</i> in South Korea to characterize their population structure and genetic diversity. The genetic diversity of the microsatellites was 0.741–0.779, which is lower than that of other freshwater fishes. The pairwise genetic differentiation of microsatellite (<i>F</i><sub>ST</sub>) values ranged from 0.007 to 0.041, suggesting low genetic differentiation between the populations. The Jojongicheon stream population (CP) had an effective population size of <100. Therefore, conservation efforts are required to prevent inbreeding depression in <i>M. longidorsalis</i>. Discriminant analysis of principal components showed that the Hangang River water system would be a single management unit (MU). Our findings provide fundamental genetic insights for the formulation of conservation strategies for <i>M. longidorsalis</i>.
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spelling doaj.art-27694a387fb243a89be87467a75d79832024-01-26T16:41:52ZengMDPI AGGenes2073-44252024-01-011516910.3390/genes15010069Assessment of the Genetic Diversity and Structure of the Korean Endemic Freshwater Fish <i>Microphysogobio longidorsalis</i> (Gobioninae) Using Microsatellite Markers: A First Glance from Population GeneticsKang-Rae Kim0Mu-Sung Sung1Yujin Hwang2Ju Hui Jeong3Jeong-Nam Yu4Animal & Plant Research Department, Nakdonggang National Institute of Biological Resources, Sangju 37242, Republic of KoreaMuldeuli Research, Icheon 12607, Republic of KoreaAnimal & Plant Research Department, Nakdonggang National Institute of Biological Resources, Sangju 37242, Republic of KoreaAnimal & Plant Research Department, Nakdonggang National Institute of Biological Resources, Sangju 37242, Republic of KoreaAnimal & Plant Research Department, Nakdonggang National Institute of Biological Resources, Sangju 37242, Republic of Korea<i>Microphysogobio longidorsalis</i> is endemic to South Korea and inhabits small areas of the Namhangang, Bukhangang, and Imjingang Rivers in the Hangang River water system. Endemic species usually are more vulnerable than species with a wide distribution. Notably, there is a lack of basic conservation data for <i>M. longidorsalis</i>. We analyzed 19 microsatellite loci in six populations of <i>M. longidorsalis</i> in South Korea to characterize their population structure and genetic diversity. The genetic diversity of the microsatellites was 0.741–0.779, which is lower than that of other freshwater fishes. The pairwise genetic differentiation of microsatellite (<i>F</i><sub>ST</sub>) values ranged from 0.007 to 0.041, suggesting low genetic differentiation between the populations. The Jojongicheon stream population (CP) had an effective population size of <100. Therefore, conservation efforts are required to prevent inbreeding depression in <i>M. longidorsalis</i>. Discriminant analysis of principal components showed that the Hangang River water system would be a single management unit (MU). Our findings provide fundamental genetic insights for the formulation of conservation strategies for <i>M. longidorsalis</i>.https://www.mdpi.com/2073-4425/15/1/69microsatellitebottleneckpopulation structuregenetic diversityendemic<i>Microphysogobio longidorsalis</i>
spellingShingle Kang-Rae Kim
Mu-Sung Sung
Yujin Hwang
Ju Hui Jeong
Jeong-Nam Yu
Assessment of the Genetic Diversity and Structure of the Korean Endemic Freshwater Fish <i>Microphysogobio longidorsalis</i> (Gobioninae) Using Microsatellite Markers: A First Glance from Population Genetics
Genes
microsatellite
bottleneck
population structure
genetic diversity
endemic
<i>Microphysogobio longidorsalis</i>
title Assessment of the Genetic Diversity and Structure of the Korean Endemic Freshwater Fish <i>Microphysogobio longidorsalis</i> (Gobioninae) Using Microsatellite Markers: A First Glance from Population Genetics
title_full Assessment of the Genetic Diversity and Structure of the Korean Endemic Freshwater Fish <i>Microphysogobio longidorsalis</i> (Gobioninae) Using Microsatellite Markers: A First Glance from Population Genetics
title_fullStr Assessment of the Genetic Diversity and Structure of the Korean Endemic Freshwater Fish <i>Microphysogobio longidorsalis</i> (Gobioninae) Using Microsatellite Markers: A First Glance from Population Genetics
title_full_unstemmed Assessment of the Genetic Diversity and Structure of the Korean Endemic Freshwater Fish <i>Microphysogobio longidorsalis</i> (Gobioninae) Using Microsatellite Markers: A First Glance from Population Genetics
title_short Assessment of the Genetic Diversity and Structure of the Korean Endemic Freshwater Fish <i>Microphysogobio longidorsalis</i> (Gobioninae) Using Microsatellite Markers: A First Glance from Population Genetics
title_sort assessment of the genetic diversity and structure of the korean endemic freshwater fish i microphysogobio longidorsalis i gobioninae using microsatellite markers a first glance from population genetics
topic microsatellite
bottleneck
population structure
genetic diversity
endemic
<i>Microphysogobio longidorsalis</i>
url https://www.mdpi.com/2073-4425/15/1/69
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