Transcriptomic comparison of Allium cepa var. agrogatum Don. cultivars with different facilitating potentials on tomato seedlings
Transcriptomic comparison of Allium cepa var. agrogatum Don. cultivars with different facilitating potentials on tomato seedlings
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DOI：
10.1080/17429145.2018.1550216
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发表时间：
2018-12
影响因子：
3.2
通讯作者：
Xue-peng Fu;Shuqin Liu;Mingqiang Li;K. Pan;Fengzhi Wu
中科院分区：
文献类型：
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作者：
Xue-peng Fu;Shuqin Liu;Mingqiang Li;K. Pan;Fengzhi Wu
摘要马铃薯洋葱对番茄幼苗生长具有促进作用，但其促进作用的机制尚不清楚。在这里，我们研究了马铃薯洋葱叶挥发物和浸出液对番茄幼苗生长的影响，并对两个具有不同促进潜力的马铃薯洋葱品种进行了转录组比较（“绥化”：较高的促进潜力;“七台河”：较低的促进潜力）。洋葱叶挥发物和淋溶物降低了番茄幼苗的茎长，但增加了地上部干物质。转录组学分析表明，‘绥化’和‘七台河’有640个基因差异表达。与光合作用、能量代谢和激素代谢相关的DEG基因在“绥化”中的表达量高于“七台河”，而与苯丙素代谢和抗病性相关的基因表达量较低。途径分析表明，DEGs主要参与植物的代谢、次生代谢产物的生物合成和植物激素的信号转导。
ABSTRACT Potato onion has facilitating effect on tomato seedlings; however, the mechanisms underlying the facilitating effect remain unknown. Here, we examined the effects of potato onion leaf volatiles and leachates on tomato seedling growth, and performed a transcriptomic comparison of two potato onion cultivars with different facilitating potentials (‘Suihua’: higher facilitating potential; ‘Qitaihe’: lower facilitating potential). Potato onion leaf volatiles and leachates decreased the stem length, but increased the shoot dry matter of tomato seedlings. Transcriptomic analysis showed that 640 genes were differentially expressed (DEGs) between ‘Suihua’ and ‘Qitaihe.’ DEGs related to photosynthesis, energy metabolism, and hormone metabolism were higher expressed in ‘Suihua’ compared to that in ‘Qitaihe,’ whereas genes related to phenylpropanoid metabolism and disease resistance were lower expressed. Pathway analysis showed the DEGs mainly participated in Metabolism, Biosynthesis of secondary metabolites and Plant hormone signal transduction.