Mechanistic model of temperature influence on flowering through whole-plant accumulation of FT
Mechanistic model of temperature influence on flowering through whole-plant accumulation of FT
复制标题
温度通过整株FT积累影响开花的机制模型
DOI:
10.1101/267104
复制
发表时间:
2018
期刊:
影响因子:
--
通讯作者:
Kinmonth-Schultz H
中科院分区:
文献类型:
--
作者:
Kinmonth-Schultz H
We assessed mechanistic temperature influence on flowering by incorporating temperature-responsive flowering mechanisms across developmental age into an existing model. Temperature influences the leaf production rate as well as expression ofFLOWERING LOCUS T(FT), a photoperiodic flowering regulator that is expressed in leaves. TheArabidopsisFramework Model incorporated temperature influence on leaf growth but ignored the consequences of leaf growth on and direct temperature influence ofFTexpression. We measuredFTproduction in differently aged leaves and modified the model, adding mechanistic temperature influence onFTtranscription, and causing whole-plantFTto accumulate with leaf growth. Our simulations suggest that in long days, the developmental stage (leaf number) at which the reproductive transition occurs is influenced by day length and temperature throughFT, while temperature influences the rate of leaf production and the time (in days) the transition occurs. Further, we demonstrate thatFTis mainly produced in the first 10 leaves in the Columbia (Col-0) accession, and thatFTaccumulation alone cannot explain flowering in conditions in which flowering is delayed. Our simulations supported our hypotheses that: (i) temperature regulation ofFT, accumulated with leaf growth, is a component of thermal time, and (ii) incorporating mechanistic temperature regulation ofFTcan improve model predictions when temperatures change over time.
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影响因子:
9.4
作者:
B. Wenden;Elizabeth A. Dun;J. Hanan;B. Andrieu;J. Weller;C. Beveridge;C. Rameau
通讯作者:
C. Rameau
影响因子:
6.9
作者:
Bangyou Zheng;B. Biddulph;Dora Li;H. Kuchel;S. Chapman
通讯作者:
S. Chapman
DOI:
--
发表时间:
2009
期刊:
影响因子:
--
作者:
J. White
通讯作者:
J. White
DOI:
--
发表时间:
2003
期刊:
影响因子:
--
作者:
S. Welch;J. Roe;Zhanshan Dong
通讯作者:
Zhanshan Dong
影响因子:
5.2
作者:
He, Jianqiang;Le Gouis, Jacques;Martre, Pierre
通讯作者:
Martre, Pierre