QTL mapping in an interspecific sorghum population uncovers candidate regulators of salinity tolerance

Salt stress impedes plant growth and disrupts normal metabolic processes, resulting in decreased biomass and increased leaf senescence. Therefore, the ability of a plant to maintain biomass when exposed to salinity stress is critical for the production of salt tolerant crops. To identify the genetic...

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Autores principales:	Ashley N. Hostetler, Rajanikanth Govindarajulu, Jennifer S. Hawkins
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Aquaporins Genetic map Plasma-intrinsic proteins Recombinant inbred line Salinity tolerance Sorghum bicolor Plant ecology QK900-989
Acceso en línea:	https://doaj.org/article/792948d24a7b4a18aa12f5579a3ccdc6
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spelling	oai:doaj.org-article:792948d24a7b4a18aa12f5579a3ccdc62021-12-04T04:36:35ZQTL mapping in an interspecific sorghum population uncovers candidate regulators of salinity tolerance2667-064X10.1016/j.stress.2021.100024https://doaj.org/article/792948d24a7b4a18aa12f5579a3ccdc62021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2667064X21000233https://doaj.org/toc/2667-064XSalt stress impedes plant growth and disrupts normal metabolic processes, resulting in decreased biomass and increased leaf senescence. Therefore, the ability of a plant to maintain biomass when exposed to salinity stress is critical for the production of salt tolerant crops. To identify the genetic basis of salt tolerance in an agronomically important grain crop, we used a recombinant inbred line (RIL) population derived from an interspecific cross between domesticated Sorghum bicolor (inbred Tx7000) and a wild relative, Sorghum propinquum. A high-density genetic map was generated from 177 F3:5 RILs and coveres the 10 Sorghum chromosomes with 1991 markers. The genetic map was used to identify 19 total QTL related to plant growth and overall health in optimal and saline conditions. Of these 19 QTL detected, 10 were specific to the salt stress response. The salt-responsive QTL contained numerous genes that have been previously shown to play a role in ionic tolerance, tissue tolerance, and osmotic tolerance, including many aquaporins.Ashley N. HostetlerRajanikanth GovindarajuluJennifer S. HawkinsElsevierarticleAquaporinsGenetic mapPlasma-intrinsic proteinsRecombinant inbred lineSalinity toleranceSorghum bicolorPlant ecologyQK900-989ENPlant Stress, Vol 2, Iss , Pp 100024- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Aquaporins Genetic map Plasma-intrinsic proteins Recombinant inbred line Salinity tolerance Sorghum bicolor Plant ecology QK900-989
spellingShingle	Aquaporins Genetic map Plasma-intrinsic proteins Recombinant inbred line Salinity tolerance Sorghum bicolor Plant ecology QK900-989 Ashley N. Hostetler Rajanikanth Govindarajulu Jennifer S. Hawkins QTL mapping in an interspecific sorghum population uncovers candidate regulators of salinity tolerance
description	Salt stress impedes plant growth and disrupts normal metabolic processes, resulting in decreased biomass and increased leaf senescence. Therefore, the ability of a plant to maintain biomass when exposed to salinity stress is critical for the production of salt tolerant crops. To identify the genetic basis of salt tolerance in an agronomically important grain crop, we used a recombinant inbred line (RIL) population derived from an interspecific cross between domesticated Sorghum bicolor (inbred Tx7000) and a wild relative, Sorghum propinquum. A high-density genetic map was generated from 177 F3:5 RILs and coveres the 10 Sorghum chromosomes with 1991 markers. The genetic map was used to identify 19 total QTL related to plant growth and overall health in optimal and saline conditions. Of these 19 QTL detected, 10 were specific to the salt stress response. The salt-responsive QTL contained numerous genes that have been previously shown to play a role in ionic tolerance, tissue tolerance, and osmotic tolerance, including many aquaporins.
format	article
author	Ashley N. Hostetler Rajanikanth Govindarajulu Jennifer S. Hawkins
author_facet	Ashley N. Hostetler Rajanikanth Govindarajulu Jennifer S. Hawkins
author_sort	Ashley N. Hostetler
title	QTL mapping in an interspecific sorghum population uncovers candidate regulators of salinity tolerance
title_short	QTL mapping in an interspecific sorghum population uncovers candidate regulators of salinity tolerance
title_full	QTL mapping in an interspecific sorghum population uncovers candidate regulators of salinity tolerance
title_fullStr	QTL mapping in an interspecific sorghum population uncovers candidate regulators of salinity tolerance
title_full_unstemmed	QTL mapping in an interspecific sorghum population uncovers candidate regulators of salinity tolerance
title_sort	qtl mapping in an interspecific sorghum population uncovers candidate regulators of salinity tolerance
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/792948d24a7b4a18aa12f5579a3ccdc6
work_keys_str_mv	AT ashleynhostetler qtlmappinginaninterspecificsorghumpopulationuncoverscandidateregulatorsofsalinitytolerance AT rajanikanthgovindarajulu qtlmappinginaninterspecificsorghumpopulationuncoverscandidateregulatorsofsalinitytolerance AT jennifershawkins qtlmappinginaninterspecificsorghumpopulationuncoverscandidateregulatorsofsalinitytolerance
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QTL mapping in an interspecific sorghum population uncovers candidate regulators of salinity tolerance

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