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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2021.12
- 수록면
- 1,463 - 1,469 (7page)
- DOI
- 10.1007/s13258-021-01168-y
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초록· 키워드
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Background Understanding the genetic diversity and distribution patterns of seaweeds species is crucial for evaluating key regions of high genetic diversity. Identifying hotspots of high intraspecifc diversity is an important step for developing conservation strategies. Grateloupia is a diverse genus of Rhodophyta, many of which are resource of numerous useful bioactive compounds; therefore, the genus is valuable target for conservation.
Objective The aim of this study is to examine the genetic diversity and population structure of two Grateloupia species, Grateloupia asiatica and Grateloupia jejuensis, with the understanding of the phylogeography of the Korean genetic diversity hotspot for two species.
Methods Plastid rbcL gene sequences of 134 specimens of G. asiatica and 112 specimens of G. jejuensis collected from the Korean coast were analyzed. We evaluated the number of haplotypes, genetic diversity (haplotype and nucleotide diversity), and haplotype networks of two species. Historical demographic was inferred by calculating neutrality tests and genetic differentiation was estimated using the fxation index, FST.
Results Our results show that both species are generally similar in geographical distribution patterns, that is, relatively homogeneous with few haplotypes derived from the most frequent haplotype. The east coast of Korea is identifed as a ‘hotspot’ with the highest genetic diversity for both species, whereas Jeju Island is identifed as a ‘cold spot’ with the lowest genetic diversity for G. jejuensis. Analyses across most distribution ranges of the two species in Korea reveal low genetic and haplotype diversities, which could indicate that these two Grateloupia species have either experienced a historical lack of diversity or a recent reduction in diversity due to high gene fow.
Conclusions The low genetic diversity values found in the present study raise considerable concern about the conservation status of these two Grateloupia species and highlight the need to locate further hotspots of genetic diversity to strengthen their resilience against further decline.
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참고문헌 (42)
참고문헌 신청
Erika Aguirre-Planter / 2020 / Phylogeography and Genetic Diversity in a Southern North American Desert: Agave kerchovei From the Tehuacán-Cuicatlán Valley, Mexico / Frontiers in Plant Science 11:863
Barkely RA / 1970 / The Kuroshio current / Science 6:54~60
Boo GH / 2019 / Contrasting patterns of genetic structure and phylogeography in the marine agarophytes Gelidium divaricatus and G. freshwateri(Gelidiales, Rhodophyta)from East Asia / J Phycol 55:1319~1334
Cheang CC / 2010 / Phylogeography of the marine macroalga Sargassum hemiphyllum(Phaeophyceae, Heterokontophyta)in northwestern Pacifc / Mol Ecol 19:2933~2929
Andrea Chiocchio / 2021 / Reconstructing hotspots of genetic diversity from glacial refugia and subsequent dispersal in Italian common toads (Bufo bufo) / Scientific Reports 11(1):260
Barkely RA / 1970 / The Kuroshio current / Science 6:54~60
Boo GH / 2019 / Contrasting patterns of genetic structure and phylogeography in the marine agarophytes Gelidium divaricatus and G. freshwateri(Gelidiales, Rhodophyta)from East Asia / J Phycol 55:1319~1334
Cheang CC / 2010 / Phylogeography of the marine macroalga Sargassum hemiphyllum(Phaeophyceae, Heterokontophyta)in northwestern Pacifc / Mol Ecol 19:2933~2929
Andrea Chiocchio / 2021 / Reconstructing hotspots of genetic diversity from glacial refugia and subsequent dispersal in Italian common toads (Bufo bufo) / Scientific Reports 11(1):260
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