Comparative transcriptome and cross-section analyses provide insights into the mechanisms underlying Sargassum fusiforme responses to the harmful algal bloom-forming dinoflagellate Karenia mikimotoi

Lin, Lidong; Chen, Binbin; Wang, Shengqin; Li, Jun; Ma, Zengling

doi:10.1016/j.aquabot.2021.103383

Cited by 6 publications

(1 citation statement)

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“…For example, the annual production of S. fusiforme in Rongcheng, China, declined from 558.99 to 7.74 tons between 1982-2006 [6]. Apart from commercial harvest, the degradation of the environment, including the change of sea surface temperature, pollution, and harmful algae, has also had a significant impact on populations [7,8]. To increase production, the breeding technology developed by Shengyao Li's group in the 1990s has been deployed in mass farming of S. fusiforme in China.…”

Section: Introductionmentioning

confidence: 99%

ddRAD Sequencing-Based Scanning of Genetic Variants in Sargassum fusiforme

Lin

Wang

et al. 2022

JMSE

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Sargassum fusiforme is a commercially important brown seaweed that has experienced significant population reduction both from heavy exploitation and degradation of the environment. Cultivated breed strains are also in a state of population mixing. These population stressors make it necessary to investigate the population genetics to discover best practices to conserve and breed this seaweed. In this study, the genetic diversity and population structure of S. fusiforme were investigated by the genome-wide SNP data acquired from double digest restriction site-associated DNA sequencing (ddRAD-seq). We found a low genetic diversity and a slight population differentiation within and between wild and cultivated populations, and the effective population size of S. fusiforme had experienced a continuous decline. Tajima’s D analysis showed the population contraction in wild populations may be related to copper pollution which showed a consistent trend with the increase of the sea surface temperature. The potential selection signatures may change the timing or level of gene expression, and further experiments are needed to investigate the effect of the mutation on relevant pathways. These results suggest an urgent need to manage and conserve S. fusiforme resources and biodiversity considering the accelerating change of the environment.

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Section: Introductionmentioning

confidence: 99%