Molecular Variations and Photosynthetic Pigment Content of Avicennia marina Growing in Subtropical Habitat Types
Marae, S., Hegazy, A., Rostom, M., Hussein, Z., Awad, H. (2024). Molecular Variations and Photosynthetic Pigment Content of Avicennia marina Growing in Subtropical Habitat Types. EKB Journal Management System, (), -. doi: 10.21608/ejbo.2023.225319.2432
Samar S. Marae; Ahmad K. Hegazy; Merit Rostom; Zahra S. Hussein; Hossam E.A. Awad. "Molecular Variations and Photosynthetic Pigment Content of Avicennia marina Growing in Subtropical Habitat Types". EKB Journal Management System, , , 2024, -. doi: 10.21608/ejbo.2023.225319.2432
Marae, S., Hegazy, A., Rostom, M., Hussein, Z., Awad, H. (2024). 'Molecular Variations and Photosynthetic Pigment Content of Avicennia marina Growing in Subtropical Habitat Types', EKB Journal Management System, (), pp. -. doi: 10.21608/ejbo.2023.225319.2432
Marae, S., Hegazy, A., Rostom, M., Hussein, Z., Awad, H. Molecular Variations and Photosynthetic Pigment Content of Avicennia marina Growing in Subtropical Habitat Types. EKB Journal Management System, 2024; (): -. doi: 10.21608/ejbo.2023.225319.2432

Molecular Variations and Photosynthetic Pigment Content of Avicennia marina Growing in Subtropical Habitat Types

Egyptian Journal of Botany
Articles in Press, Corrected Proof, Available Online from 03 January 2024  XML PDF (5.11 MB)
Document Type: Special Issue (Original Article)
DOI: 10.21608/ejbo.2023.225319.2432
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Authors
Samar S. Marae1; Ahmad K. Hegazy email orcid 1; Merit Rostom2; Zahra S. Husseinorcid 3; Hossam E.A. Awad1
1Botany and Microbiology Department, Faculty of Science, Cairo University, Giza, Egypt
2Academy of Scientific Research and Technology (ASRT), Egypt
3Faculty of Biotechnology, October University for Modern Sciences and Arts, 6th of October, Egypt
Abstract
Mangrove habitats are important ecosystems for their ecological value, and goods and services they offer. These costal habitats are currently vulnerable due to excessive human activities. The black mangrove Avicennia marina (Forssk.) Vierh. (Avicenniaceae) populations growing in Nabq protected area represents the northernmost latitudinal limit of the Indo-Pacific-East African naturally growing mangrove forests. In this study, nine A. marina populations inhabiting Gulf of Aqaba were studied to assess the genetic relationship among the populations by Start Codon Targeted (SCoT) and Inter Simple Sequence Repeat (ISSR) as DNA Markers. Variations of photosynthetic pigment content were assessed in the populations growing in different habitat types. The numbers of polymorphic bands were 18 and 6 for SCoT and ISSR, respectively. The percentage of polymorphism showed wide range amounted 40.9 for SCoT and 25 for ISSR, while the number of amplicon bands ranged from 8–10 in SCoT and 2-9 in ISSR. The genetic relationships among populations using SCoT and ISSR analysis showed close relationship between the nearby but different habitat type populations such as sand mound and littoral populations, or between populations of same habitat types in the study region. The photosynthetic pigment content of chlorophyll a and b, and carotenoids in the littoral and intertidal populations were higher than that in the sand mound and salt plain populations. Populations inhabiting Nabq protected area have wide range of polymorphism among different habitat types. Further studies are required to investigate the genetic relationships among populations of A. marina inhabiting the eastern and western sides of the Red Sea. 
Keywords
Genetic variation; Gulf of Aqaba; Nabq Protected Area; SCoT and ISSR markers; Photosynthetic pigments
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