2015
DOI: 10.1105/tpc.15.00328
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Conserved Gene Expression Programs in Developing Roots from Diverse Plants

Abstract: The molecular basis for the origin and diversification of morphological adaptations is a central issue in evolutionary developmental biology. Here, we defined temporal transcript accumulation in developing roots from seven vascular plants, permitting a genome-wide comparative analysis of the molecular programs used by a single organ across diverse species. The resulting gene expression maps uncover significant similarity in the genes employed in roots and their developmental expression profiles. The detailed a… Show more

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Cited by 77 publications
(109 citation statements)
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“…Our results demonstrate that the RSL4-RHE regulatory module is also conserved between a lycophyte (S. moellendorffii) and angiosperms. Thus, our study is consistent with a recent report demonstrating the similarity in overall root developmental programs between these two vascular plant groups (Huang and Schiefelbein, 2015).…”
Section: Conservation Of the Rsl4-rhe Regulatory Module For Root Hairsupporting
confidence: 93%
“…Our results demonstrate that the RSL4-RHE regulatory module is also conserved between a lycophyte (S. moellendorffii) and angiosperms. Thus, our study is consistent with a recent report demonstrating the similarity in overall root developmental programs between these two vascular plant groups (Huang and Schiefelbein, 2015).…”
Section: Conservation Of the Rsl4-rhe Regulatory Module For Root Hairsupporting
confidence: 93%
“…Notably, the overall proportions of these nonconserved HAIR gene families is much greater than the equivalent nonconserved root-expressed gene families identified previously from these same species (controlling for family size; Fig. 7C; Huang and Schiefelbein, 2015). Thus, like the preferential divergence of AtRHMrelated genes (described above), these results suggest a relatively greater degree of diversification of HAIR genes during the evolution of these species.…”
Section: Root Hair-expressed Genessupporting
confidence: 56%
“…To test this, we calculated the ratio of transcript accumulation in root hair cells (FPKM from COBL9::GFP) to transcript accumulation in the entire root elongation zone and differentiation zone (FPKM from published root segment RNA-seq data; Huang and Schiefelbein, 2015) for each of these genes (Supplemental Data Set S1). The distribution of these values differs significantly between the AtRHM and AtRH(-RHM) gene groups (P , 10…”
Section: Arabidopsis Root Hair Development Genesmentioning
confidence: 99%
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