Genetic Analysis of Maize Root Development

Plant Roots ◽  
2013 ◽  
pp. 174-181 ◽  
Keyword(s):  
Genetic Analysis ◽  
Root Development ◽  
Maize Root

scholarly journals Roots Redefined: Anatomical and Genetic Analysis of Root Development

1996 ◽  
Vol 111 (4) ◽  
pp. 959-964 ◽  
Author(s):  
B. Scheres ◽  
H. I. McKhann ◽  
C. van den Berg
Keyword(s):  
Genetic Analysis ◽  
Root Development

scholarly journals Comparative RNA-Seq Analysis Reveals That Regulatory Network of Maize Root Development Controls the Expression of Genes in Response to N Stress

PLoS ONE ◽  
2016 ◽  
Vol 11 (3) ◽  
pp. e0151697 ◽  
Author(s):  
Xiujing He ◽  
Haixia Ma ◽  
Xiongwei Zhao ◽  
Shujun Nie ◽  
Yuhua Li ◽  
...  
Keyword(s):  
Root Development ◽  
Regulatory Network ◽  
Maize Root ◽  
Rna Seq ◽  
Expression Of Genes

Maize root development under various levels of salinity and water distribution

1989 ◽  
Vol 15 (4) ◽  
pp. 377-385 ◽  
Author(s):  
S. Al-Khafaf ◽  
K. Al-Janabi ◽  
I.A. Hussain ◽  
F.S. Manky ◽  
L.H. Saliem
Keyword(s):  
Root Development ◽  
Water Distribution ◽  
Maize Root

scholarly journals Strigolactones And Auxin Cooperate To Regulate Maize Root Development and Response to Nitrate

2021 ◽  
Author(s):  
Laura Ravazzolo ◽  
Stéphanie Boutet-Mercey ◽  
François Perreau ◽  
Cristian Forestan ◽  
Serena Varotto ◽  
...  
Keyword(s):  
Root Development ◽  
Lateral Root ◽  
Root Density ◽  
Maize Root ◽  
Rna Seq ◽  
Acid Biosynthesis ◽  
Transcriptional Signature ◽  
Downstream Target ◽  
Nitrate Supply ◽  
Root Response

Abstract In maize, nitrate regulates root development thanks to the coordinated action of many players. In this study, the involvement of SLs and auxin as putative components of the nitrate regulation of lateral root was investigated. To this aim, the endogenous SL content of maize root in response to nitrate was assessed by LC-MS/MS and measurements of lateral root density in the presence of analogues or inhibitors of auxin and strigolactones were performed. Furthermore, an untargeted RNA-seq based approach was used to better characterize the participation of auxin and strigolactones to the transcriptional signature of maize root response to nitrate. Our results suggested that N deprivation induces zealactone and carlactonoic acid biosynthesis in root, to a higher extent if compared to P-deprived roots. Moreover, data on lateral root density led to hypothesise that the induction of LR development early occurring upon nitrate supply involves the inhibition of SL biosynthesis, but that the downstream target of SL shutdown, beside auxin, includes also additional unknown players. Furthermore, RNA-seq results provided a set of putative markers for the auxin- or SL-dependent action of nitrate, meanwhile allowing to identify also novel components of the molecular regulation of maize root response to nitrate. Globally the existence of at least four different pathways was hypothesised, one dependent on auxin, a second one mediated by SLs, a third deriving from the SL-auxin interplay and one last attributable to nitrate itself through further downstream signals. Further work will be necessary to better assess the reliability of the model proposed.

scholarly journals Conserved LBL1-ta-siRNA and miR165/166-RLD1/2 modules regulate root development in maize

Development ◽  
2020 ◽  
Vol 148 (1) ◽  
pp. dev190033
Author(s):  
Vibhav Gautam ◽  
Archita Singh ◽  
Sandeep Yadav ◽  
Sharmila Singh ◽  
Pramod Kumar ◽  
...  
Keyword(s):  
Root Growth ◽  
Root Development ◽  
Lateral Roots ◽  
Root System Architecture ◽  
Maize Root ◽  
Altered Expression ◽  
Auxin Distribution ◽  
Seminal Roots ◽  
Crown Roots

ABSTRACTRoot system architecture and anatomy of monocotyledonous maize is significantly different from dicotyledonous model Arabidopsis. The molecular role of non-coding RNA (ncRNA) is poorly understood in maize root development. Here, we address the role of LEAFBLADELESS1 (LBL1), a component of maize trans-acting short-interfering RNA (ta-siRNA), in maize root development. We report that root growth, anatomical patterning, and the number of lateral roots (LRs), monocot-specific crown roots (CRs) and seminal roots (SRs) are significantly affected in lbl1-rgd1 mutant, which is defective in production of ta-siRNA, including tasiR-ARF that targets AUXIN RESPONSE FACTOR3 (ARF3) in maize. Altered accumulation and distribution of auxin, due to differential expression of auxin biosynthesis and transporter genes, created an imbalance in auxin signalling. Altered expression of microRNA165/166 (miR165/166) and its targets, ROLLED1 and ROLLED2 (RLD1/2), contributed to the changes in lbl1-rgd1 root growth and vascular patterning, as was evident by the altered root phenotype of Rld1-O semi-dominant mutant. Thus, LBL1/ta-siRNA module regulates root development, possibly by affecting auxin distribution and signalling, in crosstalk with miR165/166-RLD1/2 module. We further show that ZmLBL1 and its Arabidopsis homologue AtSGS3 proteins are functionally conserved.

Nitrate-N dynamics following improved fallows and maize root development in a Zimbabwean sandy clay loam

2003 ◽  
Vol 59 (3) ◽  
pp. 187-195 ◽  
Author(s):  
R. Chikowo ◽  
P. Mapfumo ◽  
P. Nyamugafata ◽  
G. Nyamadzawo ◽  
K.E. Giller
Keyword(s):  
Root Development ◽  
Maize Root ◽  
Clay Loam ◽  
Improved Fallows ◽  
N Dynamics ◽  
Sandy Clay Loam ◽  
Nitrate N ◽  
Sandy Clay

From weeds to crops: genetic analysis of root development in cereals

2004 ◽  
Vol 9 (1) ◽  
pp. 42-48 ◽  
Author(s):  
Frank Hochholdinger ◽  
Woong June Park ◽  
Michaela Sauer ◽  
Katrin Woll
Keyword(s):  
Genetic Analysis ◽  
Root Development

Genetic and genomic dissection of maize root development and architecture

2009 ◽  
Vol 12 (2) ◽  
pp. 172-177 ◽  
Author(s):  
Frank Hochholdinger ◽  
Roberto Tuberosa
Keyword(s):  
Root Development ◽  
Maize Root
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