Population differentiation in the dominant species (<i>Ulva</i> <i>prolifera</i>) of green tide in coastal waters of China

Hongbin Han; Yan Li; Xiaojun Ma; Wei Song; Zongling Wang; Mingzhu Fu; Xuelei Zhang

doi:10.1007/s13131-022-1985-5

Volume 41 Issue 11

Nov. 2022

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Article Navigation > Acta Oceanologica Sinica > 2022 > 41(11): 108-114

Hongbin Han, Yan Li, Xiaojun Ma, Wei Song, Zongling Wang, Mingzhu Fu, Xuelei Zhang. Population differentiation in the dominant species (Ulva prolifera) of green tide in coastal waters of China[J]. Acta Oceanologica Sinica, 2022, 41(11): 108-114. doi: 10.1007/s13131-022-1985-5

Citation:

Hongbin Han, Yan Li, Xiaojun Ma, Wei Song, Zongling Wang, Mingzhu Fu, Xuelei Zhang. Population differentiation in the dominant species (Ulva prolifera) of green tide in coastal waters of China[J]. Acta Oceanologica Sinica, 2022, 41(11): 108-114. doi: 10.1007/s13131-022-1985-5

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Population differentiation in the dominant species (Ulva prolifera) of green tide in coastal waters of China

doi: 10.1007/s13131-022-1985-5

Hongbin Han¹,
Yan Li^{1, 2},
Xiaojun Ma¹,
Wei Song^{1, 2},
Zongling Wang^{1, 2
,
,},
Mingzhu Fu^{1, 2},
Xuelei Zhang^{1, 2}

1.
Key Laboratory of Marine Eco-Environmental Science and Technology, First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, China
2.
Laboratory of Marine Ecology and Environmental Science, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China

Funds: The Fund of Key Laboratory of Ecological Prewarning, Protection and Restoration of Bohai Sea, Ministry of Natural Resources under contract No. 2022107; the National Key Research and Development Program of China under contract No. 2019YFC1407902; the Qingdao Postdoctoral Applied Research Project of China under contract No. QDBSH202001.

More Information

Corresponding author: E-mail: wangzl@fio.org.cn
Received Date: 2021-09-12
Accepted Date: 2022-04-11

Available Online: 2022-10-09

Publish Date: 2022-11-01

Abstract

Abstract

Since 2015, green tides with Ulva prolifera as the dominant species in the Qinhuangdao coastal waters have continued to occur. In this study, the relationship between green tides in Qinhuangdao and the Yellow Sea (setting sites in Rudong and Qingdao) was evaluated by genetic analyses of U. prolifera. Single nucleotide polymorphism (SNP) markers were used to analyze genetic diversity and genetic relationships among groups. Genetic differentiation was lower among floating U. prolifera populations in Rudong and Qingdao than in Qinhuangdao. The floating U. prolifera population had higher genetic diversity and polymorphism levels in Qingdao and Rudong than in Qinhuangdao. Physiological experiments showed that the growth rate and net buoyancy of floating U. prolifera were highest in Qinhuangdao and Qingdao, respectively, under the same environmental conditions (temperature and light). Overall, these findings showed that U. prolifera populations in the Qinhuangdao and Yellow Sea green tides (Rudong and Qingdao) differ significantly at the molecular and physiological levels. Therefore, the Qinhuangdao green tide is not correlated with the Yellow Sea green tide and has a different origin and development mode. This study provides insight into the mechanism underlying green tide blooms in coastal waters of China.
- Ulva prolifera,
- green tide,
- dominant species,
- population differentiation,
- Qinhuangdao

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References(34)

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