Transcriptome of peanut kernel and shell reveals the mechanism of calcium on peanut pod development.
Transcriptome of peanut kernel and shell reveals the mechanism of calcium on peanut pod development.
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花生仁和壳的转录组揭示了钙对花生荚果发育的机制
DOI：
10.1038/s41598-020-72893-9
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发表时间：
2020-09-24
影响因子：
4.6
通讯作者：
Li X
中科院分区：
文献类型：
--
作者：
Yang S;Wang J;Tang Z;Guo F;Zhang Y;Zhang J;Meng J;Zheng L;Wan S;Li X
钙不仅是植物生长必需的营养物质，也是不同信号通路中普遍存在的核心元素。土壤中Ca2+缺乏可能导致胚胎败育，最终导致收获季节花生荚果发育异常。为进一步研究Ca2+对花生壳和仁的影响机制，采用转录组测序技术，探讨Ca2+充足和缺钙处理花生荚果发育早期花生壳和仁中差异表达的基因。在这项研究中，检测到了 38,894 个表达基因。基于 RNA-seq 的基因表达谱显示，在 Ca2+ 充足和缺乏处理之间，壳和籽粒中的大量基因在转录水平上分别发生显着变化。编码参与Ca2+信号转导、激素、发育、离子运输和营养吸收的关键蛋白质的基因发生了显着变化。同时，在荚果发育初期，钙首先促进养分吸收和壳的发育，对种仁的形成影响较小。这些结果为理解Ca2+吸收和豆荚发育之间的关系提供了有用的信息。
Calcium is not only a nutrient necessary for plant growth but also a ubiquitous central element of different signaling pathways. Ca2+deficiency in soil may cause embryo abortion, which can eventually lead to abnormal development of peanut pods during the harvest season. To further study the mechanisms by which Ca2+affects the shells and kernels of peanuts, transcriptome sequencing was used to explore the genes differentially expressed in shells and kernels during the early stage of peanut pod development between Ca2+sufficient and deficient treatments. In this study, 38,894 expressed genes were detected. RNA-seq based gene expression profiling showed a large number of genes at the transcriptional level that changed significantly in shells and kernels between the Ca2+sufficient and deficient treatments, respectively. Genes encoding key proteins involved in Ca2+signal transduction, hormones, development, ion transport, and nutrition absorption changed significantly. Meanwhile, in the early stage of pod development, calcium first promoted nutrient absorption and development of shells, which has less effect on the formation of seed kernels. These results provide useful information for understanding the relationship between Ca2+absorption and pod development.
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