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The Photoperiod-Insensitive Allele Ppd-D1a Promotes Earlier Flowering in Rht12 Dwarf Plants of Bread Wheat

The gibberellin-responsive dwarfing gene Rht12 can significantly reduce plant height without changing seedling vigor and substantially increase ear fertility in bread wheat (Triticum aestivum. L). However, Rht12 delays heading date and anthesis date, hindering the use of Rht12 in wheat improvement....

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Autores principales: Chen, Liang, Du, Yingying, Lu, Qiumei, Chen, Hua, Meng, Ruishuang, Cui, Chunge, Lu, Shan, Yang, Yang, Chai, Yongmao, Li, Juan, Liu, Lulu, Qi, Xiangning, Li, Hang, Mishina, Kohei, Yu, Fei, Hu, Yin-Gang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6204387/
https://www.ncbi.nlm.nih.gov/pubmed/30405643
http://dx.doi.org/10.3389/fpls.2018.01312
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author Chen, Liang
Du, Yingying
Lu, Qiumei
Chen, Hua
Meng, Ruishuang
Cui, Chunge
Lu, Shan
Yang, Yang
Chai, Yongmao
Li, Juan
Liu, Lulu
Qi, Xiangning
Li, Hang
Mishina, Kohei
Yu, Fei
Hu, Yin-Gang
author_facet Chen, Liang
Du, Yingying
Lu, Qiumei
Chen, Hua
Meng, Ruishuang
Cui, Chunge
Lu, Shan
Yang, Yang
Chai, Yongmao
Li, Juan
Liu, Lulu
Qi, Xiangning
Li, Hang
Mishina, Kohei
Yu, Fei
Hu, Yin-Gang
author_sort Chen, Liang
collection PubMed
description The gibberellin-responsive dwarfing gene Rht12 can significantly reduce plant height without changing seedling vigor and substantially increase ear fertility in bread wheat (Triticum aestivum. L). However, Rht12 delays heading date and anthesis date, hindering the use of Rht12 in wheat improvement. To promote early flowering of the Rht12 dwarf plants, the photoperiod-insensitive allele Ppd-D1a was introduced through a cross between Jinmai47 (Ppd-D1a) and Karcagi (Rht12). The results showed that Ppd-D1a can rescue the delaying effect of Rht12 on flowering time and promote earlier flowering by 9.0 days (163.2°Cd) in the Rht12 dwarf plants by shortening the late reproduction phase. Plant height was reduced by Rht12 (43.2%) and Ppd-D1a (10.9%), achieving dwarf plants with higher lodging resistance. Ear fertility, like the grain number per spike, was significantly increased by Rht12 (21.3%), while it was reduced by Ppd-D1a (6.5%). However, thousand kernel weight was significantly reduced by Rht12 (12.9%) but significantly increased by Ppd-D1a (16.9%). Finally, plant yield was increased by 16.4 and 8.2%, and harvest index was increased by 24.9 and 15.4% in the Rht12 dwarf lines and tall lines with Ppd-D1a, respectively. Clearly, there was an additive interaction between Rht12 and Ppd-D1 and the introduction of Ppd-D1a advanced the flowering time and improved the yield traits of Rht12 dwarf plants, suggesting that the combination of Rht12 and Ppd-D1a would be conducive to the successful use of Rht12 in wheat breeding programs.
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spelling pubmed-62043872018-11-07 The Photoperiod-Insensitive Allele Ppd-D1a Promotes Earlier Flowering in Rht12 Dwarf Plants of Bread Wheat Chen, Liang Du, Yingying Lu, Qiumei Chen, Hua Meng, Ruishuang Cui, Chunge Lu, Shan Yang, Yang Chai, Yongmao Li, Juan Liu, Lulu Qi, Xiangning Li, Hang Mishina, Kohei Yu, Fei Hu, Yin-Gang Front Plant Sci Plant Science The gibberellin-responsive dwarfing gene Rht12 can significantly reduce plant height without changing seedling vigor and substantially increase ear fertility in bread wheat (Triticum aestivum. L). However, Rht12 delays heading date and anthesis date, hindering the use of Rht12 in wheat improvement. To promote early flowering of the Rht12 dwarf plants, the photoperiod-insensitive allele Ppd-D1a was introduced through a cross between Jinmai47 (Ppd-D1a) and Karcagi (Rht12). The results showed that Ppd-D1a can rescue the delaying effect of Rht12 on flowering time and promote earlier flowering by 9.0 days (163.2°Cd) in the Rht12 dwarf plants by shortening the late reproduction phase. Plant height was reduced by Rht12 (43.2%) and Ppd-D1a (10.9%), achieving dwarf plants with higher lodging resistance. Ear fertility, like the grain number per spike, was significantly increased by Rht12 (21.3%), while it was reduced by Ppd-D1a (6.5%). However, thousand kernel weight was significantly reduced by Rht12 (12.9%) but significantly increased by Ppd-D1a (16.9%). Finally, plant yield was increased by 16.4 and 8.2%, and harvest index was increased by 24.9 and 15.4% in the Rht12 dwarf lines and tall lines with Ppd-D1a, respectively. Clearly, there was an additive interaction between Rht12 and Ppd-D1 and the introduction of Ppd-D1a advanced the flowering time and improved the yield traits of Rht12 dwarf plants, suggesting that the combination of Rht12 and Ppd-D1a would be conducive to the successful use of Rht12 in wheat breeding programs. Frontiers Media S.A. 2018-10-22 /pmc/articles/PMC6204387/ /pubmed/30405643 http://dx.doi.org/10.3389/fpls.2018.01312 Text en Copyright © 2018 Chen, Du, Lu, Chen, Meng, Cui, Lu, Yang, Chai, Li, Liu, Qi, Li, Mishina, Yu and Hu. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Plant Science
Chen, Liang
Du, Yingying
Lu, Qiumei
Chen, Hua
Meng, Ruishuang
Cui, Chunge
Lu, Shan
Yang, Yang
Chai, Yongmao
Li, Juan
Liu, Lulu
Qi, Xiangning
Li, Hang
Mishina, Kohei
Yu, Fei
Hu, Yin-Gang
The Photoperiod-Insensitive Allele Ppd-D1a Promotes Earlier Flowering in Rht12 Dwarf Plants of Bread Wheat
title The Photoperiod-Insensitive Allele Ppd-D1a Promotes Earlier Flowering in Rht12 Dwarf Plants of Bread Wheat
title_full The Photoperiod-Insensitive Allele Ppd-D1a Promotes Earlier Flowering in Rht12 Dwarf Plants of Bread Wheat
title_fullStr The Photoperiod-Insensitive Allele Ppd-D1a Promotes Earlier Flowering in Rht12 Dwarf Plants of Bread Wheat
title_full_unstemmed The Photoperiod-Insensitive Allele Ppd-D1a Promotes Earlier Flowering in Rht12 Dwarf Plants of Bread Wheat
title_short The Photoperiod-Insensitive Allele Ppd-D1a Promotes Earlier Flowering in Rht12 Dwarf Plants of Bread Wheat
title_sort photoperiod-insensitive allele ppd-d1a promotes earlier flowering in rht12 dwarf plants of bread wheat
topic Plant Science
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6204387/
https://www.ncbi.nlm.nih.gov/pubmed/30405643
http://dx.doi.org/10.3389/fpls.2018.01312
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