Genetic diversity analysis based on molecular marker and quantitative traits of the response of different tomato (Lycopersicon esculentum Mill.) cultivars to drought stress
The drought tolerance of tomato (Lycopersicon esculentum Mill.) is a trait needing urgent improvement due to recent climate changes and limited water availability. We therefore conducted a greenhouse screening experiment to identify tomato cultivars with improved drought tolerance. Several...
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| Format: | Article |
| Language: | English |
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University of Belgrade, University of Novi Sad
2016-01-01
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| Series: | Archives of Biological Sciences |
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| Online Access: | http://www.doiserbia.nb.rs/img/doi/0354-4664/2016/0354-46641500126M.pdf |
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| author | Metwali Ehab M.R. Carle Reinhold Schweiggert Ralf M. Kadasa Naif M. Almaghrabi Omar A. |
| author_facet | Metwali Ehab M.R. Carle Reinhold Schweiggert Ralf M. Kadasa Naif M. Almaghrabi Omar A. |
| author_sort | Metwali Ehab M.R. |
| collection | DOAJ |
| description | The drought tolerance of tomato (Lycopersicon esculentum Mill.) is a trait
needing urgent improvement due to recent climate changes and limited water
availability. We therefore conducted a greenhouse screening experiment to
identify tomato cultivars with improved drought tolerance. Several
sensitivity and tolerance indices were computed based on morphological
markers. With the aim of establishing a correlation to these markers, a total
of 16 inter-simple sequence repeat (ISSR) primers were used, the genetic
diversity among cultivars was elucidated and clustering the cultivars into
groups based on their molecular profiles was performed. The obtained results
indicated that selection indices, such as geometric mean productivity (GMP),
mean productivity (MP), tolerance index (TOL),and stress tolerance index
(STI), represented suitable indices for screening the drought tolerance of
tomato cultivars. An interesting correlation of the ISSR analyses to these
morphological findings was established according to 83 detectable fragments
derived from 10 primers. The highest value of the effective multiplex ratio
(EMR) and marker index (MI) was detected for primer INC7 followed by INC1.
Based on Jaccard's similarity coefficients, the genetic distance of the
genotypes varied from 0.702 to 0.942 with a mean value of 0.882. The results
showed a clear-cut separation of the 15 tomato cultivars due to their genetic
variability, making them a valuable genetic source for their incorporation
into potential breeding programs. Molecular data were in good agreement with
the results as regards selection indices, and both of them will be useful
tools for improvement of the tomato germplasm. |
| first_indexed | 2024-12-22T11:59:45Z |
| format | Article |
| id | doaj.art-ccceea48f54048aaa147cadd66ffc1c5 |
| institution | Directory Open Access Journal |
| issn | 0354-4664 1821-4339 |
| language | English |
| last_indexed | 2024-12-22T11:59:45Z |
| publishDate | 2016-01-01 |
| publisher | University of Belgrade, University of Novi Sad |
| record_format | Article |
| series | Archives of Biological Sciences |
| spelling | doaj.art-ccceea48f54048aaa147cadd66ffc1c52022-12-21T18:26:40ZengUniversity of Belgrade, University of Novi SadArchives of Biological Sciences0354-46641821-43392016-01-0168242743810.2298/ABS150629126M0354-46641500126MGenetic diversity analysis based on molecular marker and quantitative traits of the response of different tomato (Lycopersicon esculentum Mill.) cultivars to drought stressMetwali Ehab M.R.0Carle Reinhold1Schweiggert Ralf M.2Kadasa Naif M.3Almaghrabi Omar A.4King Abdulaziz University, Faculty of Science, Biological Science Department, Jeddah, Saudi Arabia + Suez Canal University, Faculty of Agriculture, Botany Department, Ismailia, EgyptKing Abdulaziz University, Faculty of Science, Biological Science Department, Jeddah, Saudi Arabia + University of Hohenheim, Institute of Food Science and Biotechnology, Plant Foodstuff Technology and Analysis, Stuttgart, GermanyUniversity of Hohenheim, Institute of Food Science and Biotechnology, Plant Foodstuff Technology and Analysis, Stuttgart, GermanyKing Abdulaziz University, Faculty of Science, Biological Science Department, Jeddah, Saudi ArabiaKing Abdulaziz University, Faculty of Science, Biological Science Department, Jeddah, Saudi ArabiaThe drought tolerance of tomato (Lycopersicon esculentum Mill.) is a trait needing urgent improvement due to recent climate changes and limited water availability. We therefore conducted a greenhouse screening experiment to identify tomato cultivars with improved drought tolerance. Several sensitivity and tolerance indices were computed based on morphological markers. With the aim of establishing a correlation to these markers, a total of 16 inter-simple sequence repeat (ISSR) primers were used, the genetic diversity among cultivars was elucidated and clustering the cultivars into groups based on their molecular profiles was performed. The obtained results indicated that selection indices, such as geometric mean productivity (GMP), mean productivity (MP), tolerance index (TOL),and stress tolerance index (STI), represented suitable indices for screening the drought tolerance of tomato cultivars. An interesting correlation of the ISSR analyses to these morphological findings was established according to 83 detectable fragments derived from 10 primers. The highest value of the effective multiplex ratio (EMR) and marker index (MI) was detected for primer INC7 followed by INC1. Based on Jaccard's similarity coefficients, the genetic distance of the genotypes varied from 0.702 to 0.942 with a mean value of 0.882. The results showed a clear-cut separation of the 15 tomato cultivars due to their genetic variability, making them a valuable genetic source for their incorporation into potential breeding programs. Molecular data were in good agreement with the results as regards selection indices, and both of them will be useful tools for improvement of the tomato germplasm.http://www.doiserbia.nb.rs/img/doi/0354-4664/2016/0354-46641500126M.pdfTomato (Lycopersicon esculentum Mill.)drought stressdrought tolerant/sensitivity indicesgenetic diversityISSR markerspolymorphic informationcluster analysis |
| spellingShingle | Metwali Ehab M.R. Carle Reinhold Schweiggert Ralf M. Kadasa Naif M. Almaghrabi Omar A. Genetic diversity analysis based on molecular marker and quantitative traits of the response of different tomato (Lycopersicon esculentum Mill.) cultivars to drought stress Archives of Biological Sciences Tomato (Lycopersicon esculentum Mill.) drought stress drought tolerant/sensitivity indices genetic diversity ISSR markers polymorphic information cluster analysis |
| title | Genetic diversity analysis based on molecular marker and quantitative traits of the response of different tomato (Lycopersicon esculentum Mill.) cultivars to drought stress |
| title_full | Genetic diversity analysis based on molecular marker and quantitative traits of the response of different tomato (Lycopersicon esculentum Mill.) cultivars to drought stress |
| title_fullStr | Genetic diversity analysis based on molecular marker and quantitative traits of the response of different tomato (Lycopersicon esculentum Mill.) cultivars to drought stress |
| title_full_unstemmed | Genetic diversity analysis based on molecular marker and quantitative traits of the response of different tomato (Lycopersicon esculentum Mill.) cultivars to drought stress |
| title_short | Genetic diversity analysis based on molecular marker and quantitative traits of the response of different tomato (Lycopersicon esculentum Mill.) cultivars to drought stress |
| title_sort | genetic diversity analysis based on molecular marker and quantitative traits of the response of different tomato lycopersicon esculentum mill cultivars to drought stress |
| topic | Tomato (Lycopersicon esculentum Mill.) drought stress drought tolerant/sensitivity indices genetic diversity ISSR markers polymorphic information cluster analysis |
| url | http://www.doiserbia.nb.rs/img/doi/0354-4664/2016/0354-46641500126M.pdf |
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