Intraspecific genetic variation within and between improved cultivars and landraces of durum wheat in germination and root architectural traits under saline conditions
This study was conducted to investigate the genetic variation within and between two subgroups of durum wheat in Jordan, i.e., cultivars and landraces, in germination and root architectural traits at three salinity concentrations (50, 100 and 150 mM NaCl). The results indicate that salinity signific...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-08-01
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| Series: | International Journal of Plant Biology |
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| Online Access: | https://www.pagepress.org/journals/index.php/pb/article/view/7413 |
| _version_ | 1819281770593386496 |
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| author | Nidal Odat |
| author_facet | Nidal Odat |
| author_sort | Nidal Odat |
| collection | DOAJ |
| description | This study was conducted to investigate the genetic variation within and between two subgroups of durum wheat in Jordan, i.e., cultivars and landraces, in germination and root architectural traits at three salinity concentrations (50, 100 and 150 mM NaCl). The results indicate that salinity significantly impacted most traits investigated. A multivariate discriminant analysis (DA) revealed large variations (~85%) between genotypes, with significant ranking in maximum root length, total root length, seminal root length, coleoptile length, germination percentage, and total and seminal root number over the three salinities. Within the cultivar subgroup, salinity significantly influenced the germination percentage and most root traits of durum genotypes, with variable magnitudes depending on NaCl concentration and within-variety intraspecific genetic variation (ANOVAs; P < 0.05). However, within the landrace subgroup, only a salinity of 150 mM NaCl significantly affected the studied traits, and the effect of salinity on germination percentage was highly genotype dependent. Additionally, the durum genotypes in the landrace subgroup were more affected by salinity and showed more genetic variation than those in the cultivar subgroup. |
| first_indexed | 2024-12-24T01:04:58Z |
| format | Article |
| id | doaj.art-8fc18a80e6054df4adfe1ef876812871 |
| institution | Directory Open Access Journal |
| issn | 2037-0156 2037-0164 |
| language | English |
| last_indexed | 2024-12-24T01:04:58Z |
| publishDate | 2020-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | International Journal of Plant Biology |
| spelling | doaj.art-8fc18a80e6054df4adfe1ef8768128712022-12-21T17:23:14ZengMDPI AGInternational Journal of Plant Biology2037-01562037-01642020-08-0111110.4081/pb.2020.7413Intraspecific genetic variation within and between improved cultivars and landraces of durum wheat in germination and root architectural traits under saline conditionsNidal Odat0Department of Biotechnology, Al Balqa Applied University, Al SaltThis study was conducted to investigate the genetic variation within and between two subgroups of durum wheat in Jordan, i.e., cultivars and landraces, in germination and root architectural traits at three salinity concentrations (50, 100 and 150 mM NaCl). The results indicate that salinity significantly impacted most traits investigated. A multivariate discriminant analysis (DA) revealed large variations (~85%) between genotypes, with significant ranking in maximum root length, total root length, seminal root length, coleoptile length, germination percentage, and total and seminal root number over the three salinities. Within the cultivar subgroup, salinity significantly influenced the germination percentage and most root traits of durum genotypes, with variable magnitudes depending on NaCl concentration and within-variety intraspecific genetic variation (ANOVAs; P < 0.05). However, within the landrace subgroup, only a salinity of 150 mM NaCl significantly affected the studied traits, and the effect of salinity on germination percentage was highly genotype dependent. Additionally, the durum genotypes in the landrace subgroup were more affected by salinity and showed more genetic variation than those in the cultivar subgroup.https://www.pagepress.org/journals/index.php/pb/article/view/7413durum wheatgerminationroot traitsintraspecific variation salinity stress |
| spellingShingle | Nidal Odat Intraspecific genetic variation within and between improved cultivars and landraces of durum wheat in germination and root architectural traits under saline conditions International Journal of Plant Biology durum wheat germination root traits intraspecific variation salinity stress |
| title | Intraspecific genetic variation within and between improved cultivars and landraces of durum wheat in germination and root architectural traits under saline conditions |
| title_full | Intraspecific genetic variation within and between improved cultivars and landraces of durum wheat in germination and root architectural traits under saline conditions |
| title_fullStr | Intraspecific genetic variation within and between improved cultivars and landraces of durum wheat in germination and root architectural traits under saline conditions |
| title_full_unstemmed | Intraspecific genetic variation within and between improved cultivars and landraces of durum wheat in germination and root architectural traits under saline conditions |
| title_short | Intraspecific genetic variation within and between improved cultivars and landraces of durum wheat in germination and root architectural traits under saline conditions |
| title_sort | intraspecific genetic variation within and between improved cultivars and landraces of durum wheat in germination and root architectural traits under saline conditions |
| topic | durum wheat germination root traits intraspecific variation salinity stress |
| url | https://www.pagepress.org/journals/index.php/pb/article/view/7413 |
| work_keys_str_mv | AT nidalodat intraspecificgeneticvariationwithinandbetweenimprovedcultivarsandlandracesofdurumwheatingerminationandrootarchitecturaltraitsundersalineconditions |