<i>Tasselseed5</i> encodes a cytochrome C oxidase that functions in sex determination by affecting jasmonate catabolism in maize

Wang, Fei; Yuan, Zhenjiang; Zhao, Zhi-Wei; Li, Caixia; Zhang, Xin; Liang, Huafeng; Liu, Yawen; Xu, Qian; Liu, Hongtao

doi:10.1111/jipb.12826

Cited by 22 publications

(16 citation statements)

References 23 publications

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“…In contrast, auxin, GA and JA-related genes were predominantly enriched in LFM. JA is required for lower floret abortion in the ear (DeLong et al, 1993; Acosta et al, 2009; Lunde et al, 2019; Wang et al, 2020) and three JA biosynthesis genes were LFM-enriched ( lox9 /GRMZM2G017616; tasselseed1 (ts1) /GRMZM2G104843; GRMZM2G168404). Seven auxin-related DEGs were enriched in LFM and functioned in auxin synthesis ( tar2 /GRMZM2G066345), transport ( pin3 /GRMZM2G149184; GRMZM2G085236; GRMZM2G037386) and signaling ( aas8 /GRMZM2G053338; iaa37 /GRMZM2G359924; bif4 /GRMZM5G864847).…”

Section: Resultsmentioning

confidence: 99%

Tissue-specific transcriptomics reveal functional differences in maize floral development

Yang

Nukunya

Ding

et al. 2021

Preprint

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Flowers are produced by floral meristems, groups of stem cells that give rise to floral organs. In grasses, including the major cereal crops, flowers (florets) are contained in spikelets, which contain one to many florets, depending on the species. Importantly, not all grass florets are developmentally equivalent, and one or more florets are often sterile or abort in each spikelet. Members of the Andropogoneae tribe, including maize, produce spikelets with two florets; the upper and lower florets are usually dimorphic and the lower floret greatly reduced compared to the upper floret. In maize ears, early development appears identical in both florets but the lower floret ultimately aborts. To gain insight into the functional differences between florets of different fates, we used laser capture microdissection coupled with RNA-seq to globally examine gene expression in upper and lower floral meristems in maize. Differentially expressed genes were involved in hormone regulation, cell wall, sugar and energy homeostasis. Furthermore, cell wall modifications and sugar accumulation differed between the upper and lower florets. Finally, we identified a novel boundary domain between upper and lower florets, which we hypothesize is important for floral meristem activity. We propose a model in which growth is suppressed in the lower floret by limiting sugar availability and upregulating genes involved in growth repression. This growth repression module may also regulate floret fertility in other grasses and potentially be modulated to engineer more productive cereal crops.

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Section: Resultsmentioning

confidence: 99%

Tissue-specific transcriptomics reveal functional differences in maize floral development

Yang

Nukunya

Ding

et al. 2021

Preprint

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“…JAs play important roles in sex determination in maize and spikelet development and flowering in rice (Table 2). Loss-of-function mutations of several JA metabolic genes, Tasselseed1 (TS1)/ Lipoxygenase 8 (LOX8) (Acosta et al, 2009), TS2 (DeLong et al, 1993;Wu et al, 2007), TS5 (Wang et al, 2020), and OPR7/8 (Yan et al, 2012) in maize, lead to the conversion of staminate flowers to pistillate flowers in the tassel inflorescence, suggesting that these JA metabolic genes play crucial roles in maize sex determination. The spikelet is the basal unit of the inflorescence in grasses, and its formation is crucial for reproductive success and cereal yield.…”

Section: Sex Determination Spikelet Development and Floweringmentioning

confidence: 99%

“…Lipid metabolism is also crucial for other aspects of reproductive development in plants, such as anther dehiscence and pollen maturation (Ishiguro et al, 2001;Xiao et al, 2014), pollen hydration (Fiebig et al, 2000;Haslam et al, 2015;Zhan et al, 2018), embryo and female gametophyte development (Kim and Huang, 2004;Kim et al, 2005), haploid induction (Liu et al, 2017a;Gilles et al, 2017;Kelliher et al, 2017), callus formation (Shang et al, 2016), sex determination, spikelet development, and flowering (Acosta et al, 2009;Yan et al, 2012;Cai et al, 2014;Wang et al, 2020). Notably, these findings have revealed the great potential for application of lipid metabolism-related genes in plant breeding and heterosis utilization, but the mechanism by which lipid metabolism regulates these reproductive development processes needs to be further elucidated.…”

Section: Introductionmentioning

confidence: 99%

Lipid Metabolism: Critical Roles in Male Fertility and Other Aspects of Reproductive Development in Plants

et al. 2020

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Fatty acids and their derivatives are essential building blocks for anther cuticle and pollen wall formation. Disruption of lipid metabolism during anther and pollen development often leads to genic male sterility (GMS). To date, many lipid metabolism-related GMS genes that are involved in the formation of anther cuticle, pollen wall, and subcellular organelle membranes in anther wall layers have been identified and characterized. In this review, we summarize recent progress on characterizing lipid metabolism-related genes and their roles in male fertility and other aspects of reproductive development in plants. On the basis of cloned GMS genes controlling biosynthesis and transport of anther cutin, wax, sporopollenin, and tryphine in Arabidopsis, rice, and maize as well as other plant species, updated lipid metabolic networks underlying anther cuticle development and pollen wall formation were proposed. Through bioinformatics analysis of anther RNA-sequencing datasets from three maize inbred lines (Oh43, W23, and B73), a total of 125 novel lipid metabolism-related genes putatively involved in male fertility in maize were deduced. More, we discuss the pathways regulating lipid metabolism-related GMS genes at the transcriptional and post-transcriptional levels. Finally, we highlight recent findings on lipid metabolism-related genes and their roles in other aspects of plant reproductive development. A comprehensive understanding of lipid metabolism, genes involved, and their roles in plant reproductive development will facilitate the application of lipid metabolism-related genes in gene editing, haploid and callus induction, molecular breeding and hybrid seed production in crops.

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“…Both pathways have been shown to contribute additively for the turnover of JA-Ile but act differently for JA responses and tolerance to related stress conditions [103,107]. In crop plants (e.g., rice and corn), JA catabolism has also been proven to be crucial to both the development, such as sexual determination [108,109], and stress tolerances, such as salt and cold [110,111]. WRKY57, a WRKY TF involved in both JA-induced leaf senescence and necrotrophic pathogen response in Arabidopsis, is repressed by JAZ4 and JAZ8 through physical interaction [85,86].…”

Section: Negative Feedbacks and Termination Of Ja Signalmentioning

confidence: 99%

Jasmonic Acid Signaling and Molecular Crosstalk with Other Phytohormones

Liu

Timko

2021

IJMS

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Plants continually monitor their innate developmental status and external environment and make adjustments to balance growth, differentiation and stress responses using a complex and highly interconnected regulatory network composed of various signaling molecules and regulatory proteins. Phytohormones are an essential group of signaling molecules that work through a variety of different pathways conferring plasticity to adapt to the everchanging developmental and environmental cues. Of these, jasmonic acid (JA), a lipid-derived molecule, plays an essential function in controlling many different plant developmental and stress responses. In the past decades, significant progress has been made in our understanding of the molecular mechanisms that underlie JA metabolism, perception, signal transduction and its crosstalk with other phytohormone signaling pathways. In this review, we discuss the JA signaling pathways starting from its biosynthesis to JA-responsive gene expression, highlighting recent advances made in defining the key transcription factors and transcriptional regulatory proteins involved. We also discuss the nature and degree of crosstalk between JA and other phytohormone signaling pathways, highlighting recent breakthroughs that broaden our knowledge of the molecular bases underlying JA-regulated processes during plant development and biotic stress responses.

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Tasselseed5 encodes a cytochrome C oxidase that functions in sex determination by affecting jasmonate catabolism in maize

Cited by 22 publications

References 23 publications

Tissue-specific transcriptomics reveal functional differences in maize floral development

Tissue-specific transcriptomics reveal functional differences in maize floral development

Lipid Metabolism: Critical Roles in Male Fertility and Other Aspects of Reproductive Development in Plants

Jasmonic Acid Signaling and Molecular Crosstalk with Other Phytohormones

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