Transcriptome Profiling of Wheat Inflorescence Development from Spikelet Initiation to Floral Patterning Identified Stage-Specific Regulatory Genes

Plant Physiology
Nan FengLong Mao

Abstract

Early reproductive development in cereals is crucial for final grain number per spike and hence the yield potential of the crop. To date, however, no systematic analyses of gene expression profiles during this important process have been conducted for common wheat (Triticum aestivum). Here, we studied the transcriptome profiles at four stages of early wheat reproductive development, from spikelet initiation to floral organ differentiation. K-means clustering and stage-specific transcript identification detected dynamically expressed homeologs of important transcription regulators in spikelet and floral meristems that may be involved in spikelet initiation, floret meristem specification, and floral organ patterning, as inferred from their homologs in model plants. Small RNA transcriptome sequencing discovered key microRNAs that were differentially expressed during wheat inflorescence development alongside their target genes, suggesting that miRNA-mediated regulatory mechanisms for floral development may be conserved in cereals and Arabidopsis. Our analysis was further substantiated by the functional characterization of the ARGONAUTE1d (AGO1d) gene, which was initially expressed in stamen primordia and later in the tapetum during...Continue Reading

Citations

Nov 18, 2018·The Plant Journal : for Cell and Molecular Biology·Maricris L ZaidemMichael D Purugganan
Feb 28, 2019·TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik·Hongni YaoZhengqiang Ma
Nov 30, 2019·The Plant Journal : for Cell and Molecular Biology·Zengcui ZhangLong Mao
Jun 24, 2020·Biochemical Society Transactions·Francesca CaselliVeronica Gregis
Nov 16, 2018·Frontiers in Plant Science·Jing LiuTao Wang
Nov 30, 2019·Plant Biotechnology Journal·Lei ChenPaula E Jameson
Mar 7, 2020·BMC Genomics·Rongzhi ZhangGenying Li
Jun 7, 2019·International Journal of Molecular Sciences·Zulfiqar AliGyuhwa Chung
Sep 30, 2020·International Journal of Molecular Sciences·Osvin ArriagadaAndrés R Schwember
Nov 3, 2020·AoB Plants·Sintayehu D DabaMohsen Mohammadi
Apr 16, 2021·Applications in Plant Sciences·Qinglian LiQi You
Nov 11, 2021·Journal of Experimental Botany·Dominika LewandowskaRobbie Waugh

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