Evolution and genetics of root hair stripes in the root epidermis.

Root hair pattern develops in a number of different ways in angiosperm. Cells in the epidermis of some species undergo asymmetric cell divisions to form a smaller daughter cell from which a hair grows, and a larger cell that forms a non-hair epidermal cell. In other species any cell in the epidermis...

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Main Authors: Dolan, L, Costa, S
Formato: Journal article
Idioma:English
Publicado: 2001
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author Dolan, L
Costa, S
author_facet Dolan, L
Costa, S
author_sort Dolan, L
collection OXFORD
description Root hair pattern develops in a number of different ways in angiosperm. Cells in the epidermis of some species undergo asymmetric cell divisions to form a smaller daughter cell from which a hair grows, and a larger cell that forms a non-hair epidermal cell. In other species any cell in the epidermis can form a root hair. Hair cells are arranged in files along the Arabidopsis root, located in the gaps between underlying cortical cell files. Epidermal cells overlying a single cortical cell file develop as non-hair epidermal cells. Genetic analysis has identified a transcription factor cascade required for the formation of this pattern. WEREWOLF (WER) and GLABRA2 (GL2) are required for the formation of non-hair epidermal cells while CAPRICE (CPC) is required for hair cell development. Recent analyses of the pattern of epidermal cells among the angiosperms indicate that this striped pattern of cell organization evolved from non-striped ancestors independently in a number of diverse evolutionary lineages. The genetic basis for the evolution of epidermal pattern in angiosperms may now be examined.
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spelling oxford-uuid:f27fb31a-aafd-4a42-8aa5-1498686c27762022-03-27T12:04:15ZEvolution and genetics of root hair stripes in the root epidermis.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:f27fb31a-aafd-4a42-8aa5-1498686c2776EnglishSymplectic Elements at Oxford2001Dolan, LCosta, SRoot hair pattern develops in a number of different ways in angiosperm. Cells in the epidermis of some species undergo asymmetric cell divisions to form a smaller daughter cell from which a hair grows, and a larger cell that forms a non-hair epidermal cell. In other species any cell in the epidermis can form a root hair. Hair cells are arranged in files along the Arabidopsis root, located in the gaps between underlying cortical cell files. Epidermal cells overlying a single cortical cell file develop as non-hair epidermal cells. Genetic analysis has identified a transcription factor cascade required for the formation of this pattern. WEREWOLF (WER) and GLABRA2 (GL2) are required for the formation of non-hair epidermal cells while CAPRICE (CPC) is required for hair cell development. Recent analyses of the pattern of epidermal cells among the angiosperms indicate that this striped pattern of cell organization evolved from non-striped ancestors independently in a number of diverse evolutionary lineages. The genetic basis for the evolution of epidermal pattern in angiosperms may now be examined.
spellingShingle Dolan, L
Costa, S
Evolution and genetics of root hair stripes in the root epidermis.
title Evolution and genetics of root hair stripes in the root epidermis.
title_full Evolution and genetics of root hair stripes in the root epidermis.
title_fullStr Evolution and genetics of root hair stripes in the root epidermis.
title_full_unstemmed Evolution and genetics of root hair stripes in the root epidermis.
title_short Evolution and genetics of root hair stripes in the root epidermis.
title_sort evolution and genetics of root hair stripes in the root epidermis
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