Comparison of genetic characteristics among species of Suaeda spp. (Amaranthaceae) in the western Anbar plateau - Iraq

Background: Comparison of genetic characteristics among species of Suaeda spp. Objective: identifying the genetic characteristics among species Suaeda (Amaranthaceae) in Anbar Governorate. (From August 2020 to September 2021 fresh plant samples were collected in the flowering stage for the studied species). Materials and methods: The genetic diversity of the Suaeda species was studied after DNA extraction and using the Inter Simple Sequence Repeats Reaction method to recorded in the genetic aspects. DNA was extracted from young leaves of the studied species. The concentration and purity of the DNA were determined, and the detection of genetic relationships between the studied plant species as well as finding this genetic fingerprint by ISSR Reaction. Results: The results showed that the plant samples collected during study belong to species of the genus Suaeda, and these species were: S. aegyptiaca, S. altissima, S. carnosissma, S. fruticosa, S. monoica, S. vera and S. vermiculata symbolized by (S1, S2, S3, S4, S5, S6, S7) respectively for the purpose of brevity. The results showed that there was the highest close between S. aegyptiaca and S. vera which amounted to 0.6319, and the results showed that there was the least closeness between S. aegyptiaca and S. carnosissma which amounted to 0.4231. Conclusion: Genetic traits are among the stable traits that can be adopted in separating the studied species. The genetic study, especially at the DNA level, is one of the most important modern taxonomic studies that rely on PCR technology for the accuracy of its results and the speed of obtaining results.There are at least seven species of the genus Suaeda in the western province of Anbar Governorate - Iraq.