The yield difference between wild-type cotton and transgenic cotton that expresses IPT depends on when water-deficit stress is applied

Abstract Drought is the No. 1 factor that limits agricultural production in the world, thus, making crops more drought tolerant is a major goal in agriculture. Many genes with functions in abiotic stress tolerance were identified, and overexpression of these genes confers increased drought tolerance...

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Autores principales:	Xunlu Zhu, Li Sun, Sundaram Kuppu, Rongbin Hu, Neelam Mishra, Jennifer Smith, Nardana Esmaeili, Maheshika Herath, Michael A. Gore, Paxton Payton, Guoxin Shen, Hong Zhang
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/d8c98e85d2af467688645f5a8402f370
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spelling	oai:doaj.org-article:d8c98e85d2af467688645f5a8402f3702021-12-02T15:09:05ZThe yield difference between wild-type cotton and transgenic cotton that expresses IPT depends on when water-deficit stress is applied10.1038/s41598-018-20944-72045-2322https://doaj.org/article/d8c98e85d2af467688645f5a8402f3702018-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-20944-7https://doaj.org/toc/2045-2322Abstract Drought is the No. 1 factor that limits agricultural production in the world, thus, making crops more drought tolerant is a major goal in agriculture. Many genes with functions in abiotic stress tolerance were identified, and overexpression of these genes confers increased drought tolerance in transgenic plants. The isopentenyltransferase gene (IPT) that encodes a rate limiting enzyme in cytokinin biosynthesis is one of them. Interestingly, when IPT-transgenic cotton was field-tested at two different sites, Texas and Arizona, different results were obtained. To explain this phenomenon, reduced irrigation experiments with different timing in applying water deficit stress were conducted. It was found that the timing of water deficit stress is critical for IPT-transgenic cotton to display its yield advantage over control plants (i.e. wild-type and segregated non-transgenic plants). If water deficit stress occurs before flowering (vegetative phase), IPT-transgenic cotton would outperform control plants; however, if water deficit stress occurs at or after flowering (reproductive phase), there would not be a yield difference between IPT-transgenic and control cotton plants. This result suggests that an early induction of IPT expression (before first flowering) is needed in order to realize the benefits of IPT-expression in transgenic plants that face water-deficit stress later in development.Xunlu ZhuLi SunSundaram KuppuRongbin HuNeelam MishraJennifer SmithNardana EsmaeiliMaheshika HerathMichael A. GorePaxton PaytonGuoxin ShenHong ZhangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-11 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Xunlu Zhu Li Sun Sundaram Kuppu Rongbin Hu Neelam Mishra Jennifer Smith Nardana Esmaeili Maheshika Herath Michael A. Gore Paxton Payton Guoxin Shen Hong Zhang The yield difference between wild-type cotton and transgenic cotton that expresses IPT depends on when water-deficit stress is applied
description	Abstract Drought is the No. 1 factor that limits agricultural production in the world, thus, making crops more drought tolerant is a major goal in agriculture. Many genes with functions in abiotic stress tolerance were identified, and overexpression of these genes confers increased drought tolerance in transgenic plants. The isopentenyltransferase gene (IPT) that encodes a rate limiting enzyme in cytokinin biosynthesis is one of them. Interestingly, when IPT-transgenic cotton was field-tested at two different sites, Texas and Arizona, different results were obtained. To explain this phenomenon, reduced irrigation experiments with different timing in applying water deficit stress were conducted. It was found that the timing of water deficit stress is critical for IPT-transgenic cotton to display its yield advantage over control plants (i.e. wild-type and segregated non-transgenic plants). If water deficit stress occurs before flowering (vegetative phase), IPT-transgenic cotton would outperform control plants; however, if water deficit stress occurs at or after flowering (reproductive phase), there would not be a yield difference between IPT-transgenic and control cotton plants. This result suggests that an early induction of IPT expression (before first flowering) is needed in order to realize the benefits of IPT-expression in transgenic plants that face water-deficit stress later in development.
format	article
author	Xunlu Zhu Li Sun Sundaram Kuppu Rongbin Hu Neelam Mishra Jennifer Smith Nardana Esmaeili Maheshika Herath Michael A. Gore Paxton Payton Guoxin Shen Hong Zhang
author_facet	Xunlu Zhu Li Sun Sundaram Kuppu Rongbin Hu Neelam Mishra Jennifer Smith Nardana Esmaeili Maheshika Herath Michael A. Gore Paxton Payton Guoxin Shen Hong Zhang
author_sort	Xunlu Zhu
title	The yield difference between wild-type cotton and transgenic cotton that expresses IPT depends on when water-deficit stress is applied
title_short	The yield difference between wild-type cotton and transgenic cotton that expresses IPT depends on when water-deficit stress is applied
title_full	The yield difference between wild-type cotton and transgenic cotton that expresses IPT depends on when water-deficit stress is applied
title_fullStr	The yield difference between wild-type cotton and transgenic cotton that expresses IPT depends on when water-deficit stress is applied
title_full_unstemmed	The yield difference between wild-type cotton and transgenic cotton that expresses IPT depends on when water-deficit stress is applied
title_sort	yield difference between wild-type cotton and transgenic cotton that expresses ipt depends on when water-deficit stress is applied
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/d8c98e85d2af467688645f5a8402f370
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The yield difference between wild-type cotton and transgenic cotton that expresses IPT depends on when water-deficit stress is applied

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