A transporter for delivering zinc to the developing tiller bud and panicle in rice

2020 ◽  
Author(s):  
Shuai Mu ◽  
Naoki Yamaji ◽  
Akimasa Sasaki ◽  
Le Luo ◽  
Binbin Du ◽  
...  
Keyword(s):  
Tiller Bud

scholarly journals Characterization of full-length transcriptome in Saccharum officinarum and molecular insights into tiller development

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Haifeng Yan ◽  
Huiwen Zhou ◽  
Hanmin Luo ◽  
Yegeng Fan ◽  
Zhongfeng Zhou ◽  
...  
Keyword(s):  
Carbon Fixation ◽  
Developmental Stages ◽  
Genomic Data ◽  
Saccharum Officinarum ◽  
Full Length ◽  
Rna Seq ◽  
Pyruvate Phosphate Dikinase ◽  
Sugarcane Yield ◽  
Tiller Bud

Abstract Background Although extensive breeding efforts are ongoing in sugarcane (Saccharum officinarum L.), the average yield is far below the theoretical potential. Tillering is an important component of sugarcane yield, however, the molecular mechanism underlying tiller development is still elusive. The limited genomic data in sugarcane, particularly due to its complex and large genome, has hindered in-depth molecular studies. Results Herein, we generated full-length (FL) transcriptome from developing leaf and tiller bud samples based on PacBio Iso-Seq. In addition, we performed RNA-seq from tiller bud samples at three developmental stages (T0, T1 and T2) to uncover key genes and biological pathways involved in sugarcane tiller development. In total, 30,360 and 20,088 high-quality non-redundant isoforms were identified in leaf and tiller bud samples, respectively, representing 41,109 unique isoforms in sugarcane. Likewise, we identified 1063 and 1037 alternative splicing events identified in leaf and tiller bud samples, respectively. We predicted the presence of coding sequence for 40,343 isoforms, 98% of which was successfully annotated. Comparison with previous FL transcriptomes in sugarcane revealed 2963 unreported isoforms. In addition, we characterized 14,946 SSRs from 11,700 transcripts and 310 lncRNAs. By integrating RNA-seq with the FL transcriptome, 468 and 57 differentially expressed genes (DEG) were identified in T1vsT0 and T2vsT0, respectively. Strong up-regulation of several pyruvate phosphate dikinase and phosphoenolpyruvate carboxylase genes suggests enhanced carbon fixation and protein synthesis to facilitate tiller growth. Similarly, up-regulation of linoleate 9S-lipoxygenase and lipoxygenase genes in the linoleic acid metabolism pathway suggests high synthesis of key oxylipins involved in tiller growth and development. Conclusions Collectively, we have enriched the genomic data available in sugarcane and provided candidate genes for manipulating tiller formation and development, towards productivity enhancement in sugarcane.

Growth and Development of the Wheat Tiller. II. The Dynamics of Tiller Growth

1975 ◽  
Vol 23 (5) ◽  
pp. 745 ◽  
Author(s):  
RF Williams ◽  
RHM Langer
Keyword(s):  
Negative Correlation ◽  
Growth And Development ◽  
Critical Event ◽  
Vascular Differentiation ◽  
Strong Negative Correlation ◽  
Physical Constraints ◽  
Size Dependent ◽  
Bud Growth ◽  
Time Relation ◽  
Tiller Bud

From an analysis of the length-time relation for tiller growth in wheat it was concluded that tillers which emerged traced a discontinuous curve, and that the discontinuity marked a critical event in tiller growth. Tiller buds which did not emerge as tillers continued to grow even more slowly, at least until anthesis of the primary shoot. The critical event was identified as that of escape from the cavity in which the bud was tightly contained throughout early development. The timing of vascular differentiation in tiller buds was shown to be size-dependent and there was no evidence for any correlation with the critical event of escape. A strong negative correlation between the lengths of the 3rd tiller buds and their subtending internodes was established, and the presence or absence of the 4th tiller bud was also correlated with its internode length. Current hypotheses relating to apical dominance are reviewed, and it is suggested that the dynamic physical constraints implicit in tiller bud growth add a further complication. It was concluded that hormonal, nutritional and constraint mechanisms need to be integrated as partial mechanisms which interacted at the interfaces between successive levels within apical systems.

scholarly journals Tiller Bud Formation Regulators MOC1 and MOC3 Cooperatively Promote Tiller Bud Outgrowth by Activating FON1 Expression in Rice

2019 ◽  
Vol 12 (8) ◽  
pp. 1090-1102 ◽  
Author(s):  
Gaoneng Shao ◽  
Zefu Lu ◽  
Jinsong Xiong ◽  
Bing Wang ◽  
Yanhui Jing ◽  
...  
Keyword(s):  
Bud Formation ◽  
Tiller Bud

Temporal-spatial changes in the belowground bud bank in interdune lowlands of an active sand dune ecosystem in northeastern China

2020 ◽  
Author(s):  
Jing Wu ◽  
Jianqiang Qian ◽  
Quanlai Zhou ◽  
Wanqin Yang ◽  
Zhimin Liu
Keyword(s):  
Arid Regions ◽  
Sand Dune ◽  
Growing Season ◽  
Bud Bank ◽  
Stem Base ◽  
Opposite Trend ◽  
Spatial Changes ◽  
Rhizome Bud ◽  
Semi Arid ◽  
Tiller Bud

Abstract Aims The belowground bud bank plays an important role in vegetation restoration of sand dune ecosystems in semi-arid regions. However, few studies have focused on the temporal-spatial changes of belowground bud banks in interdune lowlands. Methods The size and composition of belowground bud bank in five interdune lowlands with different sizes were investigated for one growing season to determine the temporal and spatial changes in belowground bud bank. Important Findings Total bud bank density was the highest in the medium-sized interdune lowland as was tiller bud density. The density of stem-base buds exhibited an opposite trend while rhizome bud density did not change with interdune lowland size. There was a significant seasonal change in the bud bank size. The total bud density peaked in August and was the lowest in October. A similar trend was found for rhizome bud density, whereas the density of stem-base buds showed an opposite trend, and tiller bud density did not change significantly during the growing season. We conclude that the belowground bud bank density is changed with interdune lowland size and season. These results contribute to the understanding of adaptive strategies of plants growing in active dune ecosystems and provide pointers for adopting effective measures to restore and conserve dune vegetation in semi-arid regions.

Suppression of Tiller Bud Activity in Tillering Dwarf Mutants of Rice

2005 ◽  
Vol 46 (1) ◽  
pp. 79-86 ◽  
Author(s):  
Shinji Ishikawa ◽  
Masahiko Maekawa ◽  
Tomotsugu Arite ◽  
Kazumitsu Onishi ◽  
Itsuro Takamure ◽  
...  
Keyword(s):  
Tiller Bud

Identification and characterization of HTD2: a novel gene negatively regulating tiller bud outgrowth in rice

Planta ◽  
2009 ◽  
Vol 230 (4) ◽  
pp. 649-658 ◽  
Author(s):  
Wenzhen Liu ◽  
Chao Wu ◽  
Yaping Fu ◽  
Guocheng Hu ◽  
Huamin Si ◽  
...  
Keyword(s):  
Novel Gene ◽  
Identification And Characterization ◽  
Tiller Bud

scholarly journals Division Size and Shade Density Influence Growth and Container Production of Hakonechloa macra Makino 'Aureola'

HortScience ◽  
2002 ◽  
Vol 37 (1) ◽  
pp. 196-199 ◽  
Author(s):  
Michael P. Harvey ◽  
Mark H. Brand
Keyword(s):  
Growing Season ◽  
Visual Observation ◽  
Leaf Color ◽  
Shade Cloth ◽  
Nursery Production ◽  
Tiller Bud ◽  
Container Production

Hakonechloa macra Makino 'Aureola' is an ornamental, shade tolerant landscape grass that grows slowly and commands high prices. Hakonechloa plants grown from four initial division sizes, of 1-2, 4-6, 8-10, or 12-15 tiller buds, were evaluated following a complete growing season (105 days). Based on visual observation, we rated 100% of plants grown from the two larger division sizes to be salable compared with only 30% of those from divisions containing 4-6 growing points, and none from the smallest division size. However, divisions of 1-2 tiller buds produced twice as many new shoots and tiller buds per initial tiller bud as did larger division sizes. To produce salable plants in one growing season, results suggest the use of 8-10 tiller bud divisions, but for propagation and increase of stock material, where it is important to obtain the greatest number of new growing points per initial growing point, use of the smaller division sizes is indicated. Hakonechloa plants were grown under shading densities of 0%, 30%, 50%, or 70% provided by polypropylene shade cloth. Shading increased overall growth and improved the appearance and leaf color of Hakonechloa, but at 70% shade density, plants appeared languid and open. For this reason, 50% shading is recommended for nursery production of Hakonechloa macra 'Aureola'.

scholarly journals A gene regulatory network for tiller development mediated by Tin8 in maize

2021 ◽  
Author(s):  
Zhelong Lin ◽  
Leina Zhou ◽  
Shuyang Zhong ◽  
Xiaojian Fang ◽  
Hangqin Liu ◽  
...  
Keyword(s):  
Gene Regulatory Network ◽  
Strong Interaction ◽  
Regulatory Network ◽  
Tiller Number ◽  
Chromosome 8 ◽  
Chromosome 1 ◽  
Rna Seq ◽  
Hormonal Responses ◽  
Gene Regulatory ◽  
Tiller Bud

Abstract The complex gene regulatory network underlying maize tiller development remains largely unknown. Here we identified two major quantitative trait loci (QTLs) for tiller number, Tin8 on chromosome 8 and the previously known Tb1 on chromosome 1, in a population derived from a teosinte–maize cross. Map-based cloning and association mapping revealed that Tin8 corresponding to Zcn8 encoding a PEBP-related kinase, is down-regulated in transcription and thus results in decreased tiller number. Strong interaction between Tin8 and the key gen Tb1 was detected for tiller number. Further RNA-seq analysis showed that the expressions of 13 genes related to tiller development were controlled by Tin8. Our results support the existence of a complex gene regulatory network for the outgrowth of maize tiller bud, in which Zcn8 controls 13 tiller-related genes including four genes for hormonal responses. Especially, Zcn8 represses Gt1, D14 and Tru1, through the interaction of Tb1.

Sorghum tiller bud growth is repressed by contact with the overlying leaf

2019 ◽  
Vol 42 (7) ◽  
pp. 2120-2132 ◽  
Author(s):  
Ruixian Liu ◽  
Scott A. Finlayson
Keyword(s):  
Bud Growth ◽  
Tiller Bud
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