Current Advances in Molecular Basis and Mechanisms Regulating Leaf Morphology in Rice

Yield is majorly affected by photosynthetic efficiency. Leaves are essential structure for photosynthesis and their morphology especially size and shape in a plant canopy can affect the rate of transpiration, carbon fixation and photosynthesis. Leaf rolling and size are considered key agronomic trai...

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Main Authors: Peizhou Xu, Asif Ali, Baolin Han, Xianjun Wu
Format: Article
Language:English
Published: Frontiers Media S.A. 2018-10-01
Series:Frontiers in Plant Science
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fpls.2018.01528/full
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author Peizhou Xu
Peizhou Xu
Asif Ali
Asif Ali
Baolin Han
Baolin Han
Xianjun Wu
Xianjun Wu
author_facet Peizhou Xu
Peizhou Xu
Asif Ali
Asif Ali
Baolin Han
Baolin Han
Xianjun Wu
Xianjun Wu
author_sort Peizhou Xu
collection DOAJ
description Yield is majorly affected by photosynthetic efficiency. Leaves are essential structure for photosynthesis and their morphology especially size and shape in a plant canopy can affect the rate of transpiration, carbon fixation and photosynthesis. Leaf rolling and size are considered key agronomic traits in plant architecture that can subsidize yield parameters. In last era, a number of genes controlling leaf morphology have been molecularly characterized. Despite of several findings, our understanding toward molecular mechanism of leaf rolling and size are under-developed. Here, we proposed a model to apprehend the physiological basis of different genes organized in a complex fashion and govern the final phenotype of leaf morphology. According to this leaf rolling is mainly controlled by regulation of bulliform cells by SRL1, ROC5, OsRRK1, SLL2, CLD1, OsZHD1/2, and NRL1, structure and processes of sclerenchyma cells by SLL1 and SRL2, leaf polarity by ADL1, RFS and cuticle formation by CFL1, and CLD1. Many of above mentioned and several other genes interact in a complex manner in order to sustain cellular integrity and homeostasis for optimum leaf rolling. While, leaf size is synchronized by multifarious interaction of PLA1, PLA2, OsGASR1, and OsEXPA8 in cell division, NAL1, NAL9, NRL1, NRL2 in regulation of number of veins, OsCOW1, OsPIN1, OsARF19, OsOFP2, D1 and GID in regulation of phytohormones and HDT702 in epigenetic aspects. In this review, we curtailed recent advances engrossing regulation and functions of those genes that directly or indirectly can distress leaf rolling or size by encoding different types of proteins and genic expression. Moreover, this effort could be used further to develop comprehensive learning and directing our molecular breeding of rice.
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spelling doaj.art-4a30568d14784fb18f61fe915c0808882022-12-21T18:56:47ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2018-10-01910.3389/fpls.2018.01528410198Current Advances in Molecular Basis and Mechanisms Regulating Leaf Morphology in RicePeizhou Xu0Peizhou Xu1Asif Ali2Asif Ali3Baolin Han4Baolin Han5Xianjun Wu6Xianjun Wu7Rice Research Institute, Sichuan Agricultural University, Chengdu, ChinaKey Laboratory of Southwest Crop Genetic Resources and Genetic Improvement, Ministry of Education, Chengdu, ChinaRice Research Institute, Sichuan Agricultural University, Chengdu, ChinaKey Laboratory of Southwest Crop Genetic Resources and Genetic Improvement, Ministry of Education, Chengdu, ChinaRice Research Institute, Sichuan Agricultural University, Chengdu, ChinaKey Laboratory of Southwest Crop Genetic Resources and Genetic Improvement, Ministry of Education, Chengdu, ChinaRice Research Institute, Sichuan Agricultural University, Chengdu, ChinaKey Laboratory of Southwest Crop Genetic Resources and Genetic Improvement, Ministry of Education, Chengdu, ChinaYield is majorly affected by photosynthetic efficiency. Leaves are essential structure for photosynthesis and their morphology especially size and shape in a plant canopy can affect the rate of transpiration, carbon fixation and photosynthesis. Leaf rolling and size are considered key agronomic traits in plant architecture that can subsidize yield parameters. In last era, a number of genes controlling leaf morphology have been molecularly characterized. Despite of several findings, our understanding toward molecular mechanism of leaf rolling and size are under-developed. Here, we proposed a model to apprehend the physiological basis of different genes organized in a complex fashion and govern the final phenotype of leaf morphology. According to this leaf rolling is mainly controlled by regulation of bulliform cells by SRL1, ROC5, OsRRK1, SLL2, CLD1, OsZHD1/2, and NRL1, structure and processes of sclerenchyma cells by SLL1 and SRL2, leaf polarity by ADL1, RFS and cuticle formation by CFL1, and CLD1. Many of above mentioned and several other genes interact in a complex manner in order to sustain cellular integrity and homeostasis for optimum leaf rolling. While, leaf size is synchronized by multifarious interaction of PLA1, PLA2, OsGASR1, and OsEXPA8 in cell division, NAL1, NAL9, NRL1, NRL2 in regulation of number of veins, OsCOW1, OsPIN1, OsARF19, OsOFP2, D1 and GID in regulation of phytohormones and HDT702 in epigenetic aspects. In this review, we curtailed recent advances engrossing regulation and functions of those genes that directly or indirectly can distress leaf rolling or size by encoding different types of proteins and genic expression. Moreover, this effort could be used further to develop comprehensive learning and directing our molecular breeding of rice.https://www.frontiersin.org/article/10.3389/fpls.2018.01528/fullbulliform cellscell proliferationcell wall integrityhomeostasisphytohormones
spellingShingle Peizhou Xu
Peizhou Xu
Asif Ali
Asif Ali
Baolin Han
Baolin Han
Xianjun Wu
Xianjun Wu
Current Advances in Molecular Basis and Mechanisms Regulating Leaf Morphology in Rice
Frontiers in Plant Science
bulliform cells
cell proliferation
cell wall integrity
homeostasis
phytohormones
title Current Advances in Molecular Basis and Mechanisms Regulating Leaf Morphology in Rice
title_full Current Advances in Molecular Basis and Mechanisms Regulating Leaf Morphology in Rice
title_fullStr Current Advances in Molecular Basis and Mechanisms Regulating Leaf Morphology in Rice
title_full_unstemmed Current Advances in Molecular Basis and Mechanisms Regulating Leaf Morphology in Rice
title_short Current Advances in Molecular Basis and Mechanisms Regulating Leaf Morphology in Rice
title_sort current advances in molecular basis and mechanisms regulating leaf morphology in rice
topic bulliform cells
cell proliferation
cell wall integrity
homeostasis
phytohormones
url https://www.frontiersin.org/article/10.3389/fpls.2018.01528/full
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