珊瑚修复苗圃中珊瑚繁殖体和生殖材料的脂质组成

IF 2.7 2区 生物学 Q1 MARINE & FRESHWATER BIOLOGY
Christine D. Roper, Jennifer L. Matthews, Emma F. Camp, Matthew P. Padula, Unnikrishnan Kuzhiumparambil, John Edmondson, Lorna Howlett, David J. Suggett
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引用次数: 0

摘要

珊瑚恢复工作在全球范围内迅速增加,包括近年来在大堡礁(GBR)开展的几项计划。尽管许多修复计划利用水中育苗来加快珊瑚生物量的产出,但育苗环境对繁殖体质量的影响尚未得到研究,尽管珊瑚的适应性对确保抗性种群非常重要。在这里,我们研究了在 GBR 珊瑚苗圃中生长的 Acropora millepora 成体和卵与本地珊瑚礁相比的两个适应性指标(脂质多样性和组织蛋白丰度),其中成体在两个地点(蓝湖和雷班)进行评估,卵在一个地点(蓝湖)进行评估。成体珊瑚的脂质特征因地点和来源(苗圃与野生珊瑚礁)而异,苗圃成体珊瑚表现出较高的储存脂质(二酰甘油和三酰甘油)和负责调节膜结构的脂质类别(磷脂酰胆碱和甾醇酯)的相对丰度,而野生珊瑚的特征是较高的脂肪酸和参与免疫调节的类别的相对丰度。比较不同产地的卵,育苗后代含有更丰富的储能三酰甘油以及对膜结构至关重要的神经酰胺和磷脂酰胆碱,而野生卵则含有更多对储能也很重要的蜡酯种类。在总蛋白质丰度(成体或卵)或卵的物理特征(数量和大小)方面,育苗场和野生产地之间没有发现差异。脂质特征的变化与珊瑚礁地点和产地(育苗地与野生地)之间环境条件的差异一致,突出表明在规划恢复项目时需要考虑地点选择和繁殖条件。重要的是,这些研究结果表明,A. millepora育苗场和野生卵中相对丰度最高的脂质类别与来自同一产地的成体中的脂质类别不同,这表明与亲本效应相比,繁殖产地对珊瑚卵脂质特征的影响更为重要。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Lipid composition of coral propagules and reproductive material in coral restoration nurseries

Lipid composition of coral propagules and reproductive material in coral restoration nurseries

Coral restoration efforts have rapidly increased worldwide, including the development of several programmes on the Great Barrier Reef (GBR) in recent years. While many restoration programmes utilise in-water nurseries to accelerate coral biomass yields, the impact of nursery environments on propagule quality has not been examined despite the importance of coral fitness for ensuring resistant populations. Here, we investigated two fitness indicators (lipid diversity and tissue protein abundance) of Acropora millepora adults and eggs grown on coral nurseries versus native reef on the GBR, with adults assessed at two sites (Blue Lagoon and Rayban) and eggs assessed at one site (Blue Lagoon). Lipid profiles of adult colonies varied by site and origin (nursery versus wild reef), with adult nursery corals exhibiting an elevated relative abundance of storage lipids (diacylglycerols and triacylglycerols) and lipid classes responsible for regulating membrane structure (phosphatidylcholines and sterol esters), while wild corals were characterised by a greater relative abundance of fatty acids and classes involved in immunoregulation. Comparing eggs from different origins, nursery offspring were richer in energy-storing triacylglycerols, as well as ceramides and phosphatidylcholines essential for membrane structure, while wild eggs had a greater relative abundance of wax ester species also important for energy storage. No differences were found in total protein abundance (adult or eggs) or egg physical characteristics (count and size) between nursery and wild origins. Variations in lipid profiles are consistent with differences in environmental conditions between reef sites and origin (nursery versus wild), highlighting the need to consider site selection and propagation conditions when planning restoration projects. Importantly, these findings demonstrate that the lipid classes with the highest relative abundance in A. millepora nursery and wild eggs differed from those in adults from the same origin, suggesting that propagation origin is more important for driving lipid profiles in coral eggs compared to parental effects.

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来源期刊
Coral Reefs
Coral Reefs 生物-海洋与淡水生物学
CiteScore
6.80
自引率
11.40%
发文量
111
审稿时长
4-8 weeks
期刊介绍: Coral Reefs, the Journal of the International Coral Reef Society, presents multidisciplinary literature across the broad fields of reef studies, publishing analytical and theoretical papers on both modern and ancient reefs. These encourage the search for theories about reef structure and dynamics, and the use of experimentation, modeling, quantification and the applied sciences. Coverage includes such subject areas as population dynamics; community ecology of reef organisms; energy and nutrient flows; biogeochemical cycles; physiology of calcification; reef responses to natural and anthropogenic influences; stress markers in reef organisms; behavioural ecology; sedimentology; diagenesis; reef structure and morphology; evolutionary ecology of the reef biota; palaeoceanography of coral reefs and coral islands; reef management and its underlying disciplines; molecular biology and genetics of coral; aetiology of disease in reef-related organisms; reef responses to global change, and more.
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