Genetic evaluation and characterization using cluster heat map to assess NaCl tolerance in tomato germplasm at the seedling stage

ABSTRACT Salinity is a serious problem that limits crop growth and yield. The present study used plotting to evaluate 25 tomato (Solanum lycopersicum L.) accessions for various morpho-physiological parameters at the seedling stage and identify significantly salt-tolerant tomato lines at three differ...

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Autores principales:	Rehman,Fazal, Saeed,Asif, Yaseen,Muhammad, Shakeel,Amir, Ziaf,Khurram, Munir,Hassan, Tariq,Sultan Ali, Raza,Muhammad Ahsan, Riaz,Awais
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2019
Materias:	Cluster heat map pot experiment principal component analysis salinity Solanum lycopersicum tomato seedling
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392019000100056
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spelling	oai:scielo:S0718-583920190001000562019-02-19Genetic evaluation and characterization using cluster heat map to assess NaCl tolerance in tomato germplasm at the seedling stageRehman,FazalSaeed,AsifYaseen,MuhammadShakeel,AmirZiaf,KhurramMunir,HassanTariq,Sultan AliRaza,Muhammad AhsanRiaz,Awais Cluster heat map pot experiment principal component analysis salinity Solanum lycopersicum tomato seedling ABSTRACT Salinity is a serious problem that limits crop growth and yield. The present study used plotting to evaluate 25 tomato (Solanum lycopersicum L.) accessions for various morpho-physiological parameters at the seedling stage and identify significantly salt-tolerant tomato lines at three different salinity levels. The pot experiment had a completely randomized design with three replicates in a factorial arrangement under greenhouse conditions. Tomato plants were exposed to 0 (control), 8, and 12 dS m-1 as NaCl stress at the seedling stage. The morpho-physiological traits, such as root and shoot length, root/shoot ratio, number of leaves, fresh and dry shoot weight, fresh and dry root weight, leaf area, Na+ and K+ concentrations, K+/Na+ ratio, and tolerance index, were recorded to examine salt tolerance. According to principal component analysis (PCA), there were six principal components (PCs) with Eigen values > 1 and 77.2% of total cumulative variability. The PC1 (24.3%) revealed the highest variability followed by PC2 (16.2%). Meanwhile, the PCA biplot and cluster heat map analyses indicated that Subarctic, Raad-Red, Naqeeb, Pakit, Tommy-Toe, and BL-1076 were salt-tolerant, whereas PBLA-1401, PB-017902, CLN-2413, BL-1078, BL-1174, and BL-1079 were the most susceptible accessions based on their performance under stress.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.79 n.1 20192019-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392019000100056en10.4067/S0718-58392019000100056
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Cluster heat map pot experiment principal component analysis salinity Solanum lycopersicum tomato seedling
spellingShingle	Cluster heat map pot experiment principal component analysis salinity Solanum lycopersicum tomato seedling Rehman,Fazal Saeed,Asif Yaseen,Muhammad Shakeel,Amir Ziaf,Khurram Munir,Hassan Tariq,Sultan Ali Raza,Muhammad Ahsan Riaz,Awais Genetic evaluation and characterization using cluster heat map to assess NaCl tolerance in tomato germplasm at the seedling stage
description	ABSTRACT Salinity is a serious problem that limits crop growth and yield. The present study used plotting to evaluate 25 tomato (Solanum lycopersicum L.) accessions for various morpho-physiological parameters at the seedling stage and identify significantly salt-tolerant tomato lines at three different salinity levels. The pot experiment had a completely randomized design with three replicates in a factorial arrangement under greenhouse conditions. Tomato plants were exposed to 0 (control), 8, and 12 dS m-1 as NaCl stress at the seedling stage. The morpho-physiological traits, such as root and shoot length, root/shoot ratio, number of leaves, fresh and dry shoot weight, fresh and dry root weight, leaf area, Na+ and K+ concentrations, K+/Na+ ratio, and tolerance index, were recorded to examine salt tolerance. According to principal component analysis (PCA), there were six principal components (PCs) with Eigen values > 1 and 77.2% of total cumulative variability. The PC1 (24.3%) revealed the highest variability followed by PC2 (16.2%). Meanwhile, the PCA biplot and cluster heat map analyses indicated that Subarctic, Raad-Red, Naqeeb, Pakit, Tommy-Toe, and BL-1076 were salt-tolerant, whereas PBLA-1401, PB-017902, CLN-2413, BL-1078, BL-1174, and BL-1079 were the most susceptible accessions based on their performance under stress.
author	Rehman,Fazal Saeed,Asif Yaseen,Muhammad Shakeel,Amir Ziaf,Khurram Munir,Hassan Tariq,Sultan Ali Raza,Muhammad Ahsan Riaz,Awais
author_facet	Rehman,Fazal Saeed,Asif Yaseen,Muhammad Shakeel,Amir Ziaf,Khurram Munir,Hassan Tariq,Sultan Ali Raza,Muhammad Ahsan Riaz,Awais
author_sort	Rehman,Fazal
title	Genetic evaluation and characterization using cluster heat map to assess NaCl tolerance in tomato germplasm at the seedling stage
title_short	Genetic evaluation and characterization using cluster heat map to assess NaCl tolerance in tomato germplasm at the seedling stage
title_full	Genetic evaluation and characterization using cluster heat map to assess NaCl tolerance in tomato germplasm at the seedling stage
title_fullStr	Genetic evaluation and characterization using cluster heat map to assess NaCl tolerance in tomato germplasm at the seedling stage
title_full_unstemmed	Genetic evaluation and characterization using cluster heat map to assess NaCl tolerance in tomato germplasm at the seedling stage
title_sort	genetic evaluation and characterization using cluster heat map to assess nacl tolerance in tomato germplasm at the seedling stage
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2019
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392019000100056
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Genetic evaluation and characterization using cluster heat map to assess NaCl tolerance in tomato germplasm at the seedling stage

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