Population Genetics of Sugar Kelp Throughout the Northeastern United States Using Genome-Wide Markers
An assessment of genetic diversity of marine populations is critical not only for the understanding and preserving natural biodiversity but also for its commercial potential. As commercial demand rises for marine resources, it is critical to generate baseline information for monitoring wild populati...
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doaj-33148dfb01e24fbbabbfa736e53e450f2020-11-25T03:40:17ZengFrontiers Media S.A.Frontiers in Marine Science2296-77452020-08-01710.3389/fmars.2020.00694552733Population Genetics of Sugar Kelp Throughout the Northeastern United States Using Genome-Wide MarkersXiaowei Mao0Xiaowei Mao1Xiaowei Mao2Simona Augyte3Mao Huang4Matthew P. Hare5David Bailey6Schery Umanzor7Michael Marty-Rivera8Kelly R. Robbins9Charles Yarish10Scott Lindell11Jean-Luc Jannink12Jean-Luc Jannink13Key Laboratory of Vertebrate Evolution and Human Origins, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing, ChinaChinese Academy of Sciences (CAS) Center for Excellence in Life and Paleoenvironment, Beijing, ChinaSection on Plant Breeding and Genetics, School of Integrative Plant Sciences, Cornell University, Ithaca, NY, United StatesDepartment of Ecology & Evolutionary Biology, University of Connecticut, Stamford, CT, United StatesSection on Plant Breeding and Genetics, School of Integrative Plant Sciences, Cornell University, Ithaca, NY, United StatesDepartment of Natural Resources, Cornell University, Ithaca, NY, United StatesApplied Ocean Physics and Engineering, Woods Hole Oceanographic Institution, Woods Hole, MA, United StatesDepartment of Ecology & Evolutionary Biology, University of Connecticut, Stamford, CT, United StatesDepartment of Ecology & Evolutionary Biology, University of Connecticut, Stamford, CT, United StatesSection on Plant Breeding and Genetics, School of Integrative Plant Sciences, Cornell University, Ithaca, NY, United StatesDepartment of Ecology & Evolutionary Biology, University of Connecticut, Stamford, CT, United StatesApplied Ocean Physics and Engineering, Woods Hole Oceanographic Institution, Woods Hole, MA, United StatesSection on Plant Breeding and Genetics, School of Integrative Plant Sciences, Cornell University, Ithaca, NY, United StatesUnited States Department of Agriculture – Agriculture Research Service, Ithaca, NY, United StatesAn assessment of genetic diversity of marine populations is critical not only for the understanding and preserving natural biodiversity but also for its commercial potential. As commercial demand rises for marine resources, it is critical to generate baseline information for monitoring wild populations. Furthermore, anthropogenic stressors on the coastal environment, such as warming sea temperatures and overharvesting of wild populations, are leading to the destruction of keystone marine species such as kelps. In this study, we conducted a fine-scale genetic analysis using genome-wide high-density markers on Northwest Atlantic sugar kelp. The population structure for a total of 149 samples from the Gulf of Maine (GOM) and Southern New England (SNE) was investigated using AMOVA, FST, admixture, and PCoA. Genome-wide association analyses were conducted for six morphological traits, and the extended Lewontin and Krakauer (FLK) test was used to detect selection signatures. Our results indicate that the GOM region is more heterogeneous than SNE. These two regions have large genetic difference (between-location FST ranged from 0.21 to 0.32) and were separated by Cape Cod, which is known to be the biogeographic barrier for other taxa. We detected one significant SNP (P = 2.03 × 10–7) associated with stipe length, and 248 SNPs with higher-than-neutral differentiation. The findings of this study provide baseline knowledge on sugar kelp population genetics for future monitoring, managing and potentially restoring wild populations, as well as assisting in selective breeding to improve desirable traits for future commercialization opportunities.https://www.frontiersin.org/article/10.3389/fmars.2020.00694/fullSaccharina latissimapopulation structuregenome-wide analysiscultivationNortheastern United States |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Xiaowei Mao Xiaowei Mao Xiaowei Mao Simona Augyte Mao Huang Matthew P. Hare David Bailey Schery Umanzor Michael Marty-Rivera Kelly R. Robbins Charles Yarish Scott Lindell Jean-Luc Jannink Jean-Luc Jannink |
spellingShingle |
Xiaowei Mao Xiaowei Mao Xiaowei Mao Simona Augyte Mao Huang Matthew P. Hare David Bailey Schery Umanzor Michael Marty-Rivera Kelly R. Robbins Charles Yarish Scott Lindell Jean-Luc Jannink Jean-Luc Jannink Population Genetics of Sugar Kelp Throughout the Northeastern United States Using Genome-Wide Markers Frontiers in Marine Science Saccharina latissima population structure genome-wide analysis cultivation Northeastern United States |
author_facet |
Xiaowei Mao Xiaowei Mao Xiaowei Mao Simona Augyte Mao Huang Matthew P. Hare David Bailey Schery Umanzor Michael Marty-Rivera Kelly R. Robbins Charles Yarish Scott Lindell Jean-Luc Jannink Jean-Luc Jannink |
author_sort |
Xiaowei Mao |
title |
Population Genetics of Sugar Kelp Throughout the Northeastern United States Using Genome-Wide Markers |
title_short |
Population Genetics of Sugar Kelp Throughout the Northeastern United States Using Genome-Wide Markers |
title_full |
Population Genetics of Sugar Kelp Throughout the Northeastern United States Using Genome-Wide Markers |
title_fullStr |
Population Genetics of Sugar Kelp Throughout the Northeastern United States Using Genome-Wide Markers |
title_full_unstemmed |
Population Genetics of Sugar Kelp Throughout the Northeastern United States Using Genome-Wide Markers |
title_sort |
population genetics of sugar kelp throughout the northeastern united states using genome-wide markers |
publisher |
Frontiers Media S.A. |
series |
Frontiers in Marine Science |
issn |
2296-7745 |
publishDate |
2020-08-01 |
description |
An assessment of genetic diversity of marine populations is critical not only for the understanding and preserving natural biodiversity but also for its commercial potential. As commercial demand rises for marine resources, it is critical to generate baseline information for monitoring wild populations. Furthermore, anthropogenic stressors on the coastal environment, such as warming sea temperatures and overharvesting of wild populations, are leading to the destruction of keystone marine species such as kelps. In this study, we conducted a fine-scale genetic analysis using genome-wide high-density markers on Northwest Atlantic sugar kelp. The population structure for a total of 149 samples from the Gulf of Maine (GOM) and Southern New England (SNE) was investigated using AMOVA, FST, admixture, and PCoA. Genome-wide association analyses were conducted for six morphological traits, and the extended Lewontin and Krakauer (FLK) test was used to detect selection signatures. Our results indicate that the GOM region is more heterogeneous than SNE. These two regions have large genetic difference (between-location FST ranged from 0.21 to 0.32) and were separated by Cape Cod, which is known to be the biogeographic barrier for other taxa. We detected one significant SNP (P = 2.03 × 10–7) associated with stipe length, and 248 SNPs with higher-than-neutral differentiation. The findings of this study provide baseline knowledge on sugar kelp population genetics for future monitoring, managing and potentially restoring wild populations, as well as assisting in selective breeding to improve desirable traits for future commercialization opportunities. |
topic |
Saccharina latissima population structure genome-wide analysis cultivation Northeastern United States |
url |
https://www.frontiersin.org/article/10.3389/fmars.2020.00694/full |
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