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首页> 外文期刊>Acta Horticulturae >Monitoring dormancy release in fruit trees and ornamentals by RNA sequencing and its implications for horticulture
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Monitoring dormancy release in fruit trees and ornamentals by RNA sequencing and its implications for horticulture

机译：通过RNA测序监测果树和植物中的休眠释放及其对园艺的影响

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Dormancy, as it occurs in many perennial plants, is characterised by the temporal absence of growth. One of the major factors that overcomes dormancy and stimulates flowering, is the exposure to low temperature. Suboptimal flowering is often caused bypoor accumulation of chilling hours and is frequently observed in warmer geographical regions. The number and size of geographical regions suffering from suboptimal flowering is likely to increase as a consequence of global warming. Insight in the underlying processes enables growers to take measures that support optimal release from dormancy. Transcriptome analysis, using next generation sequencing, provides in depth insight in underlying processes and their timing. In kiwifruit [Actinidia spp.), uponanalysing data from several seasons in both New Zealand and Italy, distinct Gene Ontology categories could be recognised related to dormancy release, such as cell wall metabolism, stress response and polysaccharide catabolism. Subsequent comparison of relevant genes from kiwifruit to the transcriptomes of another important fruit crop, sweet cherry {Prunus avium) and an ornamental, Viburnum opulus, revealed conserved genes. Regulated genes included a dormancy associated MADS-box transcription factor, adehydration stress related galactinol synthase and several genes involved in abscisic acid regulated processes. The approach presented here opens possibilities to effectively compare genes involved in dormancy release across species, thereby increasing insight in relevant conserved processes. Moreover, such genes can be used as indicators to define the exact physiological stage crops are in.
机译：休眠，因为它发生在许多多年生植物中，其特征在于不存在生长的时间。克服休眠和刺激开花的主要因素之一是暴露于低温。次优开花通常是引起冷冻时间的累积，并且经常在暖的地理区域中观察到。由于全球变暖，遭受次优开花的地理区域的数量和大小可能会增加。潜在流程的洞察力使种植者能够采取支持从休眠的最佳释放的措施。转录组分析使用下一代测序，在底层流程及其时序提供深度洞察。在Kiwifruit [Actinidia SPP。），来自新西兰和意大利的几个季节的安置数据，不同的基因本体类别可以被认为与休眠释放有关，例如细胞壁代谢，应激反应和多糖分解代谢。随后比较来自猕猴桃的相关基因与另一种重要果实作物，甜樱桃{灌注禽）和观赏荚膜植物，荚膜的转录组的比较揭示了保守的基因。受调节基因包括休眠相关的疯狂箱转录因子，邻脂胁迫相关的半乳糖醇合成酶和参与脱落酸调节过程的几种基因。这里呈现的方法打开了有效地比较跨越物种中涉及休眠释放的基因，从而增加了相关保守过程的洞察力。此外，这些基因可以用作定义精确的生理阶段作物的指标。

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