The distribution pattern of endopolyploidy in maize

Li, Silu; Liu, Linsan; Li, Ting; Lan, Tianru; Wang, Yahui; Zhang, Zhengquan; Liu, Jianchao; Xu, Shutu; Zhang, Xinghua; Zhu, Jiangjiang; Xue, Jiquan; Guo, Dongwei

doi:10.1007/s00122-019-03294-4

Cited by 7 publications

(2 citation statements)

References 70 publications

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“…Additionally, it should be mentioned that the changes in intracellular DNA content are related to the endoploidy of the nucleus 72 . Previous studies have reported that endopolyploidy is widespread in the organs of angiosperms, such as the endosperm cells of maize 73,74 . It has been found that environmental stresses affect the endopolyploidy process and alter the level of endopolyploidy in plant cells 75 .…”

Section: Discussionmentioning

confidence: 97%

Effects of Exogenous Regulation of Ethylene and Abscisic Acid on Grain-Filling and Endosperm PCD of Wheat Under Drought Stress After Anthesis

Zhang

Guo

et al. 2021

Preprint

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Although studies have shown that grain-filling and programmed cell death of wheat endosperm are affected by drought stress, which is closely related to ethylene and abscisic acid.The mechanism of ethylene and abscisic acid regulate grain-filling and endosperm PCD under drought stress is remains unclear. In this study, we regulated the production of ethylene and abscisic acid in wheat grains under drought stress at filling stage by chemicals. The results showed that spraying ethylene synthesis inhibitor enhanced endosperm cell viability, delayed nuclear deformation, and decreased ACC content. Compared with the CK, the CN significantly decreased the DNA hydrolase activity and significantly increased the DNA content. In addition, the CN treatment reduced the expression of four genes related to ethylene receptors (ers1, ers2 etr1, etr2) and increase the expression of dad1. Under CN treatment, the process of endosperm PCD was delayed, the duration of high grouting rate was prolonged, and the grain weight was increased, in contrast, the opposite result was obtained after spraying abscisic acid synthesis inhibitor. The production of abscisic acid and ethylene in grains determines the fate of endosperm cells. A new model of artificial regulation of abscisic acid and ethylene, delaying endosperm PCD process and increasing grain weight under post-anthesis drought was proposed.

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Section: Discussionmentioning

confidence: 97%

Effects of Exogenous Regulation of Ethylene and Abscisic Acid on Grain-Filling and Endosperm PCD of Wheat Under Drought Stress After Anthesis

Zhang

Guo

et al. 2021

Preprint

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“…For higher plants, the cells of endopolyploids differentiate, and have different and specific functions in many developmental and physiological processes by increasing the size of the genome (Melaragno et al 1993, Cheniclet et al 2005, Li et al 2019). However, Gracilariopsis lemaneiformis was found to be multinuclear rather than endopolyploid species.…”

Section: Discussionmentioning

confidence: 99%

Estimating the ploidy of Gracilariopsis lemaneiformis at both the cellular and genomic level¹

Chen

Feng

Jiang

et al. 2020

Journal of Phycology

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The determination of the ploidy level of an organism is a prerequisite for studies of evolution, cellular function, and genomic construction. Identification of the ploidy of the economically important red alga Gracilariopsis lemaneiformis has been hindered by its small genome and large number of chromosomes. Therefore, in the current study, PloidyNGS, a tool that calculates the number of reads supporting different alleles at each position along the genome sequence, and fluorescence in situ hybridization coupled with tyramide signal amplification (TSA‐FISH) were used to clarify the ploidy of G. lemaneiformis. In addition, flow cytometry (FCM) was used to estimate the ploidy of different somatic cells. The PloidyNGS results showed that most of the alleles in the gametophyte were monomorphic, whereas the TSA‐FISH results showed that one hybridization signal was observed in gametophytic nuclei and two in tetrasporophytic nuclei when the nuclei were hybridized by single copy gene probes. These results confirmed that G. lemaneiformis is a haploid in the gametophytic generation and diploid in the sporophytic generation. Moreover, the FCM result suggested that G. lemaneiformis was not an endopolyploid. Based on previous studies, we hypothesize that the nuclear number is important for the cellular differentiation and function of this species. We also suggest that G. lemaneiformis evolved from a paleopolyploid, the genome of which has been diploidized, and that traces of genomic doubling are no longer apparent. Thus, this study provides important evidence for further studies on the evolution and genomes of red algae.

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Impact of Ethylene and Abscisic Acid on Programmed Cell Death in Endosperm and Grain Filling of Wheat (Triticum aestivum L.)

Zhang

Guo³

et al. 2023

J Plant Growth Regul

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The distribution pattern of endopolyploidy in maize

Cited by 7 publications

References 70 publications

Effects of Exogenous Regulation of Ethylene and Abscisic Acid on Grain-Filling and Endosperm PCD of Wheat Under Drought Stress After Anthesis

Effects of Exogenous Regulation of Ethylene and Abscisic Acid on Grain-Filling and Endosperm PCD of Wheat Under Drought Stress After Anthesis

Estimating the ploidy of Gracilariopsis lemaneiformis at both the cellular and genomic level¹

Impact of Ethylene and Abscisic Acid on Programmed Cell Death in Endosperm and Grain Filling of Wheat (Triticum aestivum L.)

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The distribution pattern of endopolyploidy in maize

Cited by 7 publications

References 70 publications

Effects of Exogenous Regulation of Ethylene and Abscisic Acid on Grain-Filling and Endosperm PCD of Wheat Under Drought Stress After Anthesis

Effects of Exogenous Regulation of Ethylene and Abscisic Acid on Grain-Filling and Endosperm PCD of Wheat Under Drought Stress After Anthesis

Estimating the ploidy of Gracilariopsis lemaneiformis at both the cellular and genomic level1

Impact of Ethylene and Abscisic Acid on Programmed Cell Death in Endosperm and Grain Filling of Wheat (Triticum aestivum L.)

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Estimating the ploidy of Gracilariopsis lemaneiformis at both the cellular and genomic level¹