Development and characterization of GR2E Golden rice introgression lines

Abstract Golden Rice with β-carotene in the grain helps to address the problem of vitamin A deficiency. Prior to commercialize Golden Rice, several performance and regulatory checkpoints must be achieved. We report results of marker assisted backcross breeding of the GR2E trait into three popular ri...

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Autores principales:	B. P. Mallikarjuna Swamy, Severino Marundan, Mercy Samia, Reynante L. Ordonio, Democrito B. Rebong, Ronalyn Miranda, Anielyn Alibuyog, Anna Theresa Rebong, Ma. Angela Tabil, Roel R. Suralta, Antonio A. Alfonso, Partha Sarathi Biswas, Md. Abdul Kader, Russell F. Reinke, Raul Boncodin, Donald J. MacKenzie
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/31f0a0969709448f86f9d24a9861899d
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spelling	oai:doaj.org-article:31f0a0969709448f86f9d24a9861899d2021-12-02T14:16:42ZDevelopment and characterization of GR2E Golden rice introgression lines10.1038/s41598-021-82001-02045-2322https://doaj.org/article/31f0a0969709448f86f9d24a9861899d2021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-82001-0https://doaj.org/toc/2045-2322Abstract Golden Rice with β-carotene in the grain helps to address the problem of vitamin A deficiency. Prior to commercialize Golden Rice, several performance and regulatory checkpoints must be achieved. We report results of marker assisted backcross breeding of the GR2E trait into three popular rice varieties followed by a series of confined field tests of event GR2E introgression lines to assess their agronomic performance and carotenoid expression. Results from confined tests in the Philippines and Bangladesh have shown that GR2E introgression lines matched the performance of the recurrent parents for agronomic and yield performance, and the key components of grain quality. Moreover, no differences were observed in terms of pest and disease reaction. The best performing lines identified in each genetic background had significant amounts of carotenoids in the milled grains. These lines can supply 30–50% of the estimated average requirements of vitamin A.B. P. Mallikarjuna SwamySeverino MarundanMercy SamiaReynante L. OrdonioDemocrito B. RebongRonalyn MirandaAnielyn AlibuyogAnna Theresa RebongMa. Angela TabilRoel R. SuraltaAntonio A. AlfonsoPartha Sarathi BiswasMd. Abdul KaderRussell F. ReinkeRaul BoncodinDonald J. MacKenzieNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q B. P. Mallikarjuna Swamy Severino Marundan Mercy Samia Reynante L. Ordonio Democrito B. Rebong Ronalyn Miranda Anielyn Alibuyog Anna Theresa Rebong Ma. Angela Tabil Roel R. Suralta Antonio A. Alfonso Partha Sarathi Biswas Md. Abdul Kader Russell F. Reinke Raul Boncodin Donald J. MacKenzie Development and characterization of GR2E Golden rice introgression lines
description	Abstract Golden Rice with β-carotene in the grain helps to address the problem of vitamin A deficiency. Prior to commercialize Golden Rice, several performance and regulatory checkpoints must be achieved. We report results of marker assisted backcross breeding of the GR2E trait into three popular rice varieties followed by a series of confined field tests of event GR2E introgression lines to assess their agronomic performance and carotenoid expression. Results from confined tests in the Philippines and Bangladesh have shown that GR2E introgression lines matched the performance of the recurrent parents for agronomic and yield performance, and the key components of grain quality. Moreover, no differences were observed in terms of pest and disease reaction. The best performing lines identified in each genetic background had significant amounts of carotenoids in the milled grains. These lines can supply 30–50% of the estimated average requirements of vitamin A.
format	article
author	B. P. Mallikarjuna Swamy Severino Marundan Mercy Samia Reynante L. Ordonio Democrito B. Rebong Ronalyn Miranda Anielyn Alibuyog Anna Theresa Rebong Ma. Angela Tabil Roel R. Suralta Antonio A. Alfonso Partha Sarathi Biswas Md. Abdul Kader Russell F. Reinke Raul Boncodin Donald J. MacKenzie
author_facet	B. P. Mallikarjuna Swamy Severino Marundan Mercy Samia Reynante L. Ordonio Democrito B. Rebong Ronalyn Miranda Anielyn Alibuyog Anna Theresa Rebong Ma. Angela Tabil Roel R. Suralta Antonio A. Alfonso Partha Sarathi Biswas Md. Abdul Kader Russell F. Reinke Raul Boncodin Donald J. MacKenzie
author_sort	B. P. Mallikarjuna Swamy
title	Development and characterization of GR2E Golden rice introgression lines
title_short	Development and characterization of GR2E Golden rice introgression lines
title_full	Development and characterization of GR2E Golden rice introgression lines
title_fullStr	Development and characterization of GR2E Golden rice introgression lines
title_full_unstemmed	Development and characterization of GR2E Golden rice introgression lines
title_sort	development and characterization of gr2e golden rice introgression lines
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/31f0a0969709448f86f9d24a9861899d
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Development and characterization of GR2E Golden rice introgression lines

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