Fluorescence of coral larvae predicts their settlement response to crustose coralline algae and reflects stress.
Fluorescence of coral larvae predicts their settlement response to crustose coralline algae and reflects stress.
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DOI：
10.1098/rspb.2010.2344
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发表时间：
2011-09-07
期刊：
影响因子：
--
通讯作者：
Matz MV
中科院分区：
文献类型：
--
作者：
Kenkel CD;Traylor MR;Wiedenmann J;Salih A;Matz MV
这种绿色荧光蛋白的多种颜色的同系物在海洋中产生了一些最引人注目的视觉现象。尽管它们在造礁珊瑚中具有天然的突出地位，并广泛用于生物技术，但它们的生物作用仍然不清楚。在这里，我们用千孔鹿角珊瑚的幼虫进行了实验，以确定可以从珊瑚幼虫的荧光颜色中了解到什么。我们在7个A之间进行了12次杂交。代表不同荧光表型的千孔珊瑚菌落，其幼虫暴露于自然沉降线索（甲壳珊瑚藻）和热-光胁迫。父母的影响解释了18%的颜色变化和47%的定居点变化。幼虫家庭的颜色出现作为一个预测的解决成功：红色的家庭显着减少响应所提供的解决线索（p = 0.006）。这种关系是由于父母对定居和颜色的影响之间的相关性（r2 = 0.587，p = 0.045）。我们还观察到沉降率明显（16%）下降，以及轻微（2%），但在统计学上显着减少的红色荧光，作为热-光应力暴露的结果。A.沉降倾向的变化千孔虫的遗传变异主要是由于加性遗传效应，并被认为反映了扩散潜力的变化。我们的研究结果表明，光学签名区分长距离和短距离分散基因型，以及评估压力。这方面的进一步研究可能会导致开发实地应用程序，以跟踪全球变暖引起的珊瑚生活史和生理变化。
Multi-coloured homologues of the green fluorescent protein generate some of the most striking visual phenomena in the ocean. Despite their natural prominence in reef-building corals and widespread use in biotechnology, their biological role remains obscure. Here, we experimented with larvae of Acropora millepora to determine what can be learned about a coral larva or recruit from its fluorescent colour. We performed 12 crosses between seven A. millepora colonies representing differing fluorescence phenotypes, the larvae of which were exposed to a natural settlement cue (crustose coralline algae) and heat–light stress. Parental effects explained 18 per cent of variation in colour and 47 per cent of variation in settlement. The colour of the larval family emerged as a predictor of the settlement success: redder families were significantly less responsive to the provided settlement cue (p = 0.006). This relationship was owing to a correlation between parental effects on settlement and colour (r2 = 0.587, p = 0.045). We also observed pronounced (16%) decline in settlement rate, as well as subtle (2%), but a statistically significant decrease in red fluorescence, as a consequence of heat–light stress exposure. Variation in settlement propensity in A. millepora is largely owing to additive genetic effects, and is thought to reflect variation in dispersal potential. Our results suggest an optical signature to discriminate between long- and short-range dispersing genotypes, as well as to evaluate stress. Further research in this direction may lead to the development of field applications to trace changes in coral life history and physiology caused by global warming.
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影响因子：
3.7
作者：
Alieva NO;Konzen KA;Field SF;Meleshkevitch EA;Hunt ME;Beltran-Ramirez V;Miller DJ;Wiedenmann J;Salih A;Matz MV
通讯作者：
Matz MV
影响因子：
3.3
作者：
Matz, MV;Marshall, NJ;Vorobyev, M
通讯作者：
Vorobyev, M
影响因子：
3.5
作者：
Heyward, AJ;Negri, AP
通讯作者：
Negri, AP
影响因子：
2.5
作者：
Meyer, Eli;Davies, Sarah;Matz, Mikhail V.
通讯作者：
Matz, Mikhail V.
影响因子：
3.9
作者：
Field, SF;Bulina, MY;Matz, MV
通讯作者：
Matz, MV