Effects of Ethylene on Rudimentary Leaf and Panicle Primordium in Litchi: Antioxidant Enzymes, Hydrogen Peroxide and Nitric Oxide

Zhou, Biyan; Huang, Xiaogu; Chen, H.; Shu, Wan; Hu, Zhao; Liu, W.; Xiang, Chen; Zhang, S.

doi:10.17660/actahortic.2013.975.27

Cited by 6 publications

(6 citation statements)

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“…Floral development of litchi may be inhibited by HT. In practice, control panicle leaf growth can reduce the HT-induced floral abortion by spraying with the ethylene producer ethephon [7], ROS inducer methyl viologen dichloride hydrate, and the NO donor sodium nitroprusside [5]. In the present studies, we have identified 127 plant hormone-related DEGs potentially involved in the HT-induced floral abortion.…”

Section: Discussionmentioning

confidence: 87%

“…How to control panicle leaf growth and inhibit floral abortion is of great importance to litchi production. In practice, ethephon is normally used to control panicle leaf growth under high-temperature conditions [7]. Methyl viologen dichloride hydrate, a reactive oxygen species (ROS) producer, and sodium nitroprusside, a nitric oxide (NO) donor are also proved to effectively inhibit panicle leaf growth and floral abortion [5].…”

Section: Introductionmentioning

confidence: 99%

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Genome-wide transcriptome analysis reveals the molecular mechanism of high temperature-induced floral abortion in Litchi chinensis

et al. 2019

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BackgroundWarm winter and hot spring attributed to global warming affected floral development and may induce floral abortion, resulted in poor flowering in litchi. To identify genes potentially involved in litchi floral abortion, six RNA-sequencing (RNA-Seq) libraries of the developing panicles (DPs) under low temperature (LT) conditions and the shrinking panicles (SPs) under high temperature (HT) conditions were constructed.Results3.07–8.97 × 106 clean reads were generated. Digital expression of the DPs with that of the SPs was compared. As a result, 1320 up-regulated and 981 down-regulated differentially expressed genes (DEGs) were identified. From the enriched GO-term, 54 temperature responsive DEGs, 23 hormone homeostasis- or biosynthesis-related DEGs, 137 hormone signal transduction or responsive DEGs, and 18 flowering-related DEGs were identified. Partial Least Squares Structural Equation Modeling (PLS-SEM) analysis indicated that the effects of hormone-related DEGs on NACs, MYBs, WRKYs were stronger than that on flowering-related DEGs. Expression pattern analysis of the inflorescence in ‘Nuomici’ and ‘Huaizhi’ under LT and HT conditions showed that genes homologous to AIL6 (LcAIL6), LHY (LcLHY), MED16 (LcMED16), SKIP20 (LcSKIP20), POD20 (LcPOD20) in the two cultivars had similar expression trends.ConclusionThis study elucidated the transcriptome in the HT-induced floral abortion and identified key genes involved in the process. NACs, MYBs, WRKYs may act as central players involved in the HT-induced floral abortion underlying hormonal control. Increased transcript in LcLHY, LcMED16, LcSKIP20, LcPOD20 and decreased transcript in LcAIL6 might be related to the inhibition of floral development. Our studies provided potential genes for the future molecular breeding of new cultivars that can reduce floral abortion under warm climates, and a novel clue to reveal the relationship of biological processes based on the RNA-seq data using PLS-SEM.Electronic supplementary materialThe online version of this article (10.1186/s12864-019-5493-8) contains supplementary material, which is available to authorized users.

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Section: Discussionmentioning

confidence: 87%

Section: Introductionmentioning

confidence: 99%

Genome-wide transcriptome analysis reveals the molecular mechanism of high temperature-induced floral abortion in Litchi chinensis

et al. 2019

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“…Interestingly, litchi panicle leaves can be regarded as the vegetative structures that may hamper floral development. Litchi growers always inhibit the development or induce premature senescence of these panicle leaves to guarantee reproductive growth, in other words, to increase litchi fruit yield [3,4,5]. Hence, this cultivation practice for litchi is different from that for field crops.…”

Section: Discussionmentioning

confidence: 99%

“…Deficiency in the ethylene signaling or biosynthesis genes affects senescence [29]. Exogenous application of ethylene induces panicle leaf senescence in litchi [5]. ABA is an essential hormone to promote senescence.…”

Section: Discussionmentioning

confidence: 99%

“…However, due to climate change and global warming, litchi trees may be exposed to high temperature conditions during these critical periods. Chemicals, such as the ethylene releaser ethephon, the reactive oxygen species (ROS) inducer methyl viologen dichloride hydrate (MV), and the nitric oxide (NO) donor sodium nitroprusside (SNP), may be used in place of low temperatures to promote the panicle leaf senescence and abscission [5].…”

Section: Introductionmentioning

confidence: 99%

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Identification of Genes Involved in Low Temperature-Induced Senescence of Panicle Leaf in Litchi chinensis

Wang

Liu

et al. 2019

Genes

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Warm winters and hot springs may promote panicle leaf growing and repress floral development. To identify genes potentially involved in litchi panicle leaf senescence, eight RNA-sequencing (RNA-Seq) libraries of the senescing panicle leaves under low temperature (LT) conditions and the developing panicle leaves under high temperature (HT) conditions were constructed. For each library, 4.78–8.99 × 106 clean reads were generated. Digital expression of the genes was compared between the senescing and developing panicle leaves. A total of 6477 upregulated differentially expressed genes (DEGs) (from developing leaves to senescing leaves), and 6318 downregulated DEGs were identified, 158 abscisic acid (ABA)-, 68 ethylene-, 107 indole-3-acetic acid (IAA)-, 27 gibberellic acid (GA)-, 68 cytokinin (CTK)-, 37 salicylic acid (SA)-, and 23 brassinolide (BR)-related DEGs. Confirmation of the RNA-Seq data by quantitative real-time PCR (qRT-PCR) analysis suggested that expression trends of the 10 candidate genes using qRT-PCR were similar to those revealed by RNA-Seq, and a significantly positive correlation between the obtained data from qRT-PCR and RNA-Seq were found, indicating the reliability of our RNA-Seq data. The present studies provided potential genes for the future molecular breeding of new cultivars that can induce panicle leaf senescence and reduce floral abortion under warm climates.

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Abiotic Stress Management in Fruit Crop Litchi chinensis

Malik

Deveshwar

2017

The Lychee Biotechnology

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Effects of Ethylene on Rudimentary Leaf and Panicle Primordium in Litchi: Antioxidant Enzymes, Hydrogen Peroxide and Nitric Oxide

Cited by 6 publications

References 0 publications

Genome-wide transcriptome analysis reveals the molecular mechanism of high temperature-induced floral abortion in Litchi chinensis

Genome-wide transcriptome analysis reveals the molecular mechanism of high temperature-induced floral abortion in Litchi chinensis

Identification of Genes Involved in Low Temperature-Induced Senescence of Panicle Leaf in Litchi chinensis

Abiotic Stress Management in Fruit Crop Litchi chinensis

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