Radial axis differentiation in a globular embryo is marked by HAZ1, a PHD-finger homeobox gene of rice

Ito, Yukihiro; Chujo, Atsushi; Eiguchi, Mitsugu; Kurata, Nori

doi:10.1016/j.gene.2004.02.040

Cited by 13 publications

(12 citation statements)

References 31 publications

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“…4D ). Like ROC1 , HAZ1 expression is restricted to the outermost cells during early embryogenesis but is detected in the outer layer of the ventral part during later stages ( Ito et al , 2004 ). Its expression was also significantly reduced in the mutant embryos ( Fig.…”

Section: Resultsmentioning

confidence: 99%

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OsMPK6plays a critical role in cell differentiation during early embryogenesis inOryza sativa

Lee

et al. 2016

EXBOTJ

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Section: Resultsmentioning

confidence: 99%

“…During early embryogenesis, a rice embryo first establishes three axes: apical–basal, radial, and dorsal–ventral. Radial symmetry then disappears when organ differentiation begins in specific regions of the globular embryo ( Ito et al , 2004 ). This indicates that the radial axis is formed before that stage.…”

Section: Resultsmentioning

confidence: 99%

OsMPK6plays a critical role in cell differentiation during early embryogenesis inOryza sativa

Lee

et al. 2016

EXBOTJ

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“…It expresses mainly in the early globular embryo and later shows a dorso-ventral pattern [46]. Radial axis differentiation is indicated by HAZ1, which is expressed most in the outer layers of the globular embryo at 3 DAP and becomes more intense in the ventral parts at 4 and 5 DAP, thus marking the outer layer of cells before the commencement of morphological differentiation [47]. Screening of a rice panicle cDNA library led to the identification of Oryza sativa TF 1/ OSTF1, which expresses in the embryo at the globular stage, in the protoderm at 3-6 DAP, in the integument and throughout the development of the endosperm [48].…”

Section: Interact With Dornrö Schen (Drn)/enhancer Of Shoot Regeneratmentioning

confidence: 99%

Transcription factors regulating the progression of monocot and dicot seed development

2011

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Seed development in this paper has been classified into the three landmark stages of cell division, organ initiation and maturation, based on morphological changes, and the available literature. The entire process proceeds at the behest of an interplay of various specific and general transcription factors (TFs). Monocots and dicots utilize overlapping, as well as distinct, TF networks during the process of seed development. The known TFs in rice and Arabidopsis have been chronologically categorized into the three stages. The main regulators of seed development contain B3 or HAP3 domains. These interact with bZIP and AP2 TFs. Other TFs that play an indispensable role during the process contain homeobox-, NAC-, MYB-, or ARF-domains. This paper is a comprehensive analysis of the TFs essential for seed development and their interactions. An understanding of this interplay will not only help unravel an integrated developmental process, but will also pave the way for biotechnological applications.

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“…During embryogenesis, a singlecelled zygote follows a defined pattern of cell division and differentiation to form a mature embryo. To investigate the developmental expression of mRNAs in embryos, the isolated embryos from many species (e.g., soybean, rapeseed, barley and rice) were first used for the cDNA library construction and the isolation of embryo specific transcripts (Goldberg et al, 1981;Loader et al, 1993;Ranford et al, 2002;Ito et al, 2004). Hand-dissected embryo proper and suspensor cells from the globular embryos of the scarlet runner bean were used for differential screening to identify suspensor-specific mRNAs (Weterings et al, 2001).…”

Section: Zygotes and Embryosmentioning

confidence: 99%

Techniques of cell type-specific transcriptome analysis and applications in researches of sexual plant reproduction

Jie

2011

Front. Biol.

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In higher plants, specific cell differentiation and fate decision are controlled by differential gene expression. Cell type-specific transcriptome analysis has become an important tool for investigating cell regulatory mechanisms. In recent years, many different techniques have been developed for the isolation of specific cells and the subsequent transcriptome analysis, and considerable data are available regarding the transcriptional profiles of some specific cells. These cell type-specific transcriptome analyses hold significant promise for elucidating the gene expression linked to cellular identities and functions, and are extraordinarily important for research in functional genomics and systems biology aimed toward basic understanding of molecular networks and pathway interactions. Moreover, to reveal the critical mechanisms about sexual plant reproduction, the gamete and embryo cells have long been treated as good subjects for cell-specific transcriptome analysis, and there has been important progress in recent decades. In this review, we summarize current technologies in cell type-specific transcriptome analysis and review the applications of these technologies in research into the mechanisms of sexual reproduction in higher plants.

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Radial axis differentiation in a globular embryo is marked by HAZ1, a PHD-finger homeobox gene of rice

Cited by 13 publications

References 31 publications

OsMPK6plays a critical role in cell differentiation during early embryogenesis inOryza sativa

OsMPK6plays a critical role in cell differentiation during early embryogenesis inOryza sativa

Transcription factors regulating the progression of monocot and dicot seed development

Techniques of cell type-specific transcriptome analysis and applications in researches of sexual plant reproduction

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