A genetic framework for regulation and seasonal adaptation of shoot architecture in hybrid aspen. Maurya, J. P., Miskolczi, P. C., Mishra, S., Singh, R. K., & Bhalerao, R. P. Proceedings of the National Academy of Sciences, 117(21):11523–11530, May, 2020. ![A genetic framework for regulation and seasonal adaptation of shoot architecture in hybrid aspen [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex 5 downloads Shoot architecture is critical for optimizing plant adaptation and productivity. In contrast with annuals, branching in perennials native to temperate and boreal regions must be coordinated with seasonal growth cycles. How branching is coordinated with seasonal growth is poorly understood. We identified key components of the genetic network that controls branching and its regulation by seasonal cues in the model tree hybrid aspen. Our results demonstrate that branching and its control by seasonal cues is mediated by mutually antagonistic action of aspen orthologs of the flowering regulators TERMINAL FLOWER 1 ( TFL1 ) and APETALA1 ( LIKE APETALA 1/LAP1 ). LAP1 promotes branching through local action in axillary buds. LAP1 acts in a cytokinin-dependent manner, stimulating expression of the cell-cycle regulator AIL1 and suppressing BRANCHED1 expression to promote branching. Short photoperiod and low temperature, the major seasonal cues heralding winter, suppress branching by simultaneous activation of TFL1 and repression of the LAP1 pathway. Our results thus reveal the genetic network mediating control of branching and its regulation by environmental cues facilitating integration of branching with seasonal growth control in perennial trees.
@article{maurya_genetic_2020,
title = {A genetic framework for regulation and seasonal adaptation of shoot architecture in hybrid aspen},
volume = {117},
issn = {0027-8424, 1091-6490},
url = {http://www.pnas.org/lookup/doi/10.1073/pnas.2004705117},
doi = {10.1073/pnas.2004705117},
abstract = {Shoot architecture is critical for optimizing plant adaptation and productivity. In contrast with annuals, branching in perennials native to temperate and boreal regions must be coordinated with seasonal growth cycles. How branching is coordinated with seasonal growth is poorly understood. We identified key components of the genetic network that controls branching and its regulation by seasonal cues in the model tree hybrid aspen. Our results demonstrate that branching and its control by seasonal cues is mediated by mutually antagonistic action of aspen orthologs of the flowering regulators
TERMINAL FLOWER 1
(
TFL1
) and
APETALA1
(
LIKE APETALA 1/LAP1
).
LAP1
promotes branching through local action in axillary buds.
LAP1
acts in a cytokinin-dependent manner, stimulating expression of the cell-cycle regulator
AIL1
and suppressing
BRANCHED1
expression to promote branching. Short photoperiod and low temperature, the major seasonal cues heralding winter, suppress branching by simultaneous activation of
TFL1
and repression of the
LAP1
pathway. Our results thus reveal the genetic network mediating control of branching and its regulation by environmental cues facilitating integration of branching with seasonal growth control in perennial trees.},
language = {en},
number = {21},
urldate = {2021-06-07},
journal = {Proceedings of the National Academy of Sciences},
author = {Maurya, Jay P. and Miskolczi, Pal C. and Mishra, Sanatkumar and Singh, Rajesh Kumar and Bhalerao, Rishikesh P.},
month = may,
year = {2020},
pages = {11523--11530},
}
Downloads: 5
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We identified key components of the genetic network that controls branching and its regulation by seasonal cues in the model tree hybrid aspen. Our results demonstrate that branching and its control by seasonal cues is mediated by mutually antagonistic action of aspen orthologs of the flowering regulators TERMINAL FLOWER 1 ( TFL1 ) and APETALA1 ( LIKE APETALA 1/LAP1 ). LAP1 promotes branching through local action in axillary buds. LAP1 acts in a cytokinin-dependent manner, stimulating expression of the cell-cycle regulator AIL1 and suppressing BRANCHED1 expression to promote branching. Short photoperiod and low temperature, the major seasonal cues heralding winter, suppress branching by simultaneous activation of TFL1 and repression of the LAP1 pathway. 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In contrast with annuals, branching in perennials native to temperate and boreal regions must be coordinated with seasonal growth cycles. How branching is coordinated with seasonal growth is poorly understood. We identified key components of the genetic network that controls branching and its regulation by seasonal cues in the model tree hybrid aspen. Our results demonstrate that branching and its control by seasonal cues is mediated by mutually antagonistic action of aspen orthologs of the flowering regulators\n TERMINAL FLOWER 1\n (\n TFL1\n ) and\n APETALA1\n (\n LIKE APETALA 1/LAP1\n ).\n LAP1\n promotes branching through local action in axillary buds.\n LAP1\n acts in a cytokinin-dependent manner, stimulating expression of the cell-cycle regulator\n AIL1\n and suppressing\n BRANCHED1\n expression to promote branching. Short photoperiod and low temperature, the major seasonal cues heralding winter, suppress branching by simultaneous activation of\n TFL1\n and repression of the\n LAP1\n pathway. Our results thus reveal the genetic network mediating control of branching and its regulation by environmental cues facilitating integration of branching with seasonal growth control in perennial trees.},\n\tlanguage = {en},\n\tnumber = {21},\n\turldate = {2021-06-07},\n\tjournal = {Proceedings of the National Academy of Sciences},\n\tauthor = {Maurya, Jay P. and Miskolczi, Pal C. and Mishra, Sanatkumar and Singh, Rajesh Kumar and Bhalerao, Rishikesh P.},\n\tmonth = may,\n\tyear = {2020},\n\tpages = {11523--11530},\n}\n\n","author_short":["Maurya, J. P.","Miskolczi, P. C.","Mishra, S.","Singh, R. K.","Bhalerao, R. 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