Beta
178379

Assessment of Relationship for Both Seedling and Maturity Traits with SSR Markers under Drought Conditions in Bread Wheat (<i>Triticum asetivum</i> L.)

Article

Last updated: 01 Jan 2025

Subjects

-

Tags

Genetics and breeding

Abstract

TWENTY-ONE cultivars of bread wheat were evaluated for drought-stress tolerance atseedling and maturity stages under non-drought and drought-stress conditions. Significant differences among genotypes were obtained under non-drought and drought-stress conditions for all seedling and maturity characteristics. Highly positive and significant correlations were found for root length with respect to fresh weight of 0.74 and dry weight seedling of 0.80. However, negative and highly significant correlations were found for both drought susceptible index based on seedling traits (DSIST) and maturity traits (DSIST) with all seedling traits except root: shoot ratio, whereas no correlations were obtained for either DSIST or DSIMT with all maturity traits except 1000 kernel weight. Positive and highly significant correlation found between DSIST and DSIMT (0.85). SSR markers analysis showed that three bands produced by Xgwm596-7A (507bp), Xgwm497-1A (556bp) and Xgwm174-5D (409bp), they were presented in all tolerant genotypes based on DSIST. The three bands (507, 556 and 409bp) were correlated to DSIST, with R2 values of 81.05%, whereas the three bands were correlated to DSIMT with R2 values of 61.96%. Strong association was observed for genotypic distance with phenotypic distance based on seedling characteristics, that amounted to 0.66, whereas the correlation was less strong between genotypic distance and phenotypic distance based on maturity traits by 0.30. The seedling traits at 15% PEG were more association than maturity traits under drought-stress with SSR markers, this gives preference to using seedling traits as an indicator of drought-stress tolerance in breeding programs.

DOI

10.21608/agro.2021.70975.1255

Keywords

Bread wheat, drought, Polymorphic marker, Seedling, SSR marker

Authors

First Name

Mahmoud A.

Last Name

El-Rawy

MiddleName

-

Affiliation

Genetics Department, Faculty of Agriculture, Assiut University, Assiut, Egypt

Email

mabosuud2020@aun.edu.eg

City

Assiut

Orcid

-

First Name

Mohammed A.

Last Name

Sayed

MiddleName

-

Affiliation

Agronomy Department, Faculty of Agriculture, Assiut University, Assiut, Egypt

Email

mohamed.sayed5@agr.au.edu.eg

City

Assiut

Orcid

0000-0002-2540-7806

First Name

Mohamed T.

Last Name

Said

MiddleName

-

Affiliation

Agronomy Department, Faculty of Agriculture, Assiut University, Assiut, Egypt

Email

mtharwat@aun.edu.eg

City

Assiut

Orcid

-

Volume

43

Article Issue

2

Related Issue

27595

Issue Date

2021-09-01

Receive Date

2021-04-04

Publish Date

2021-09-01

Page Start

173

Page End

188

Print ISSN

0379-3575

Online ISSN

2357-0288

Link

https://agro.journals.ekb.eg/article_178379.html

Detail API

https://agro.journals.ekb.eg/service?article_code=178379

Order

2

Type

Original Article

Type Code

17

Publication Type

Journal

Publication Title

Egyptian Journal of Agronomy

Publication Link

https://agro.journals.ekb.eg/

MainTitle

Assessment of Relationship for Both Seedling and Maturity Traits with SSR Markers under Drought Conditions in Bread Wheat (<i>Triticum asetivum</i> L.)

Details

Type

Article

Created At

22 Jan 2023