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59913

GENETIC DIVERSITY IN WHEAT GENOTYPES USING SIMPLE SEQUENCE REPEAT (SSR) MARKERS

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Last updated: 22 Jan 2023

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Abstract

A total of 73 genotypes including 65 hexaploid (Triticum aestivum L.) and 8 tetraploid (Triticum durum L) wheat varieties were used in this study. Eleven microsatellite markers were used to test the genetic diversity of wheat genotypes, yielding a polymorphism. The total number of detected alleles was 89 with an average allele number of 8.1 per locus. The maximum number of polymorphic alleles (9 bands) was obtained by the primer SSR-9 while the minimum number (1 allele) was recorded for primer SSR-11 with an average 5 alleles per primer. Polymorphism percentage ranged from as low as 50 % (SSR-1, SSR-2 and SSR-5) to as high as 100% (SSR-10 and SSR-11) with an average of 68.24 %. Eleven alleles at molecular size [219 bp and 188 bp (SSR-1), 239 bp (SSR-3), 635 bp and 503 bp (SSR-4), 358 bp and 331 bp (SSR-8), 250 bp, 226 bp and 210 bp (SSR-9) and 532 bp (SSR-11)], were present only in bread wheat genotypes, while one allele at molecular size 312 bp generated with primer (SSR-6) was unique to durum wheat genotypes. These alleles could be used as marker to distinguish the durum wheat from the bread wheat genotypes. Polymorphism information content (PIC) value ranged from 0.06 (primer SSR-6) to 0.2 (primer SSR-11) with an average value of 0.13. These results reflect the wide range between the frequencies of alleles at loci of SSR studied in the tested wheat varieties. The dendrogram grouped the 73 wheat genotypes according to their ploidy levels into two main clusters. Cluster 1 included the durum wheat genotypes, while cluster 2 contained all bread wheat genotypes.

DOI

10.21608/rjab.2016.59913

Keywords

durum wheat, Bread wheat, SSR markers, wheat genotype

Authors

First Name

M.

Last Name

El-Rawy

MiddleName

A.

Affiliation

Genetic Department, Faculty of Agriculture, Assiut University, Egypt

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Orcid

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First Name

A.

Last Name

Taghian

MiddleName

S.

Affiliation

Genetic Department, Faculty of Agriculture, Assiut University, Egypt

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First Name

H.

Last Name

El-Aref

MiddleName

M.

Affiliation

Genetic Department, Faculty of Agriculture, Assiut University, Egypt

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First Name

B.

Last Name

Abd El-fatah

MiddleName

E.

Affiliation

Genetic Department, Faculty of Agriculture, Assiut University, Egypt

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Orcid

-

First Name

S.

Last Name

El-Sanousy

MiddleName

A.

Affiliation

Genetic Department, Faculty of Agriculture, Assiut University, Egypt

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Volume

2

Article Issue

Special issue (2) for the first International Conference of Genetic Engineering and Biotechnology

Related Issue

5730

Issue Date

2016-06-01

Receive Date

2019-11-17

Publish Date

2016-06-01

Page Start

127

Page End

138

Print ISSN

2356-9433

Online ISSN

2682-3470

Link

https://rjab.journals.ekb.eg/article_59913.html

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https://rjab.journals.ekb.eg/service?article_code=59913

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12

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Original Article

Type Code

890

Publication Type

Journal

Publication Title

Research Journal of Applied Biotechnology

Publication Link

https://rjab.journals.ekb.eg/

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Article

Created At

22 Jan 2023