Study of the independent gametophytes found on Jeju Island in South Korea and the first record of the obligate independent gametophyte of Antrophyum obovatum Baker

Sang Hee Park; Jung Sung Kim; Hyoung Tae Kim

doi:10.1002/ece3.6510

journal article Open Access Jul 01, 2020

Study of the independent gametophytes found on Jeju Island in South Korea and the first record of the obligate independent gametophyte of Antrophyum obovatum Baker

Sang Hee Park

Jung Sung Kim Hyoung Tae Kim

Ecology and Evolution Vol. 10 No. 14 pp. 7826-7838 · Wiley

View at Publisher Save 10.1002/ece3.6510

Abstract

AbstractFern gametophytes have often been neglected in research; however, studies on gametophytes are crucial for a better understanding of the evolution of ferns. During their life cycle, some gametophytes produce large and long‐lived populations without producing sporophytes and reproduce independently through asexual means, such as through the formation of gemmae.In this study, we investigated independent gametophytes on the Jeju Island of Korea, which was located on the land bridge between East China and Japan during the glacial periods. Fourteen gametophyte populations were collected from seven sites, of which 13 populations were clearly identified as belonging to four fern species known to occur in Jeju Island with BLAST searches using rbcL and trnL‐F sequences.Surprisingly, the last remaining population constituted undescribed taxa in Korea. We presented the first report of the independent gametophytes of Antrophyum obovatum Baker which has not been previously recorded in Korea. It has been supposed that many ferns sought suitable habitat throughout the land bridge between China and Japan. However, Jeju Island might be unsuitable for vittarioid ferns that prefer a tropical or subtropical environment. Consequently, only two species of vittariod ferns (A. obovatum and Haplopteris flexuosa (Fée) E.H. Crane) in the form of a gametophyte and sporophyte, respectively, exist on Jeju Island. Therefore, this gametophyte population must be protected and managed from a conservation perspective.In the case of the independent gametophyte of Hymenophyllum wrightii Bosch, haplotype analysis was conducted based on the rbcL sequences and the result supported that the North American populations were migrated from Japan through land bridge during the glacial periods and Jeju populations were recently established by long‐distance dispersal of the Japanese populations.

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Citations

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References

Details

Published: Jul 01, 2020
Vol/Issue: 10(14)
Pages: 7826-7838
License: View

Authors

S

Sang Hee Park

Department of Forest Science Chungbuk National University Chungbuk South Korea

J

Jung Sung Kim

Department of Forest Science Chungbuk National University Chungbuk South Korea

H

Hyoung Tae Kim

Institute of Agricultural Science and Technology Chungbuk National University Chungbuk South Korea

Funding

National Research Foundation of Korea Award: 2018R1D1A3B07048213

Cite This Article

Sang Hee Park, Jung Sung Kim, Hyoung Tae Kim (2020). Study of the independent gametophytes found on Jeju Island in South Korea and the first record of the obligate independent gametophyte of Antrophyum obovatum Baker. Ecology and Evolution, 10(14), 7826-7838. https://doi.org/10.1002/ece3.6510

Study of the independent gametophytes found on Jeju Island in South Korea and the first record of the obligate independent gametophyte of Antrophyum obovatum Baker

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