The paper explores the genetic diversity and taxonomic classification of the genus Salix (willows... more The paper explores the genetic diversity and taxonomic classification of the genus Salix (willows), a taxonomically complex group in the Salicaceae family. It employs molecular markers, including AFLP (Amplified Fragment Length Polymorphism) and SRAP (Sequence-Related Amplified Polymorphism), alongside chloroplast sequences, to analyze genetic relationships among five Salix species (S. alba, S. babylonica, S. purpurea, S. acmophylla, and S. aegyptiaca). The findings reveal significant genetic variability and propose a revised infrageneric classification of Salix. Key results include: • S. alba and S. purpurea are closely related, forming a cluster, while S. babylonica is genetically distinct. S. acmophylla and S. aegyptiaca show close genetic similarity, likely due to geographic and environmental adaptations. The combined molecular markers (AFLP and SRAP) demonstrate high polymorphism rates, confirming their effectiveness for studying genetic diversity and phylogenetic relationships in Salix. The research also underscores the influence of environmental factors on species clustering, contributing to a better understanding of Salix taxonomy and genetic relationships.
ZANCO Journal of Pure and Applied Sciences, Aug 20, 2016
In this study, the genetic relatedness of five walnut populations in five different locations: Be... more In this study, the genetic relatedness of five walnut populations in five different locations: Bedohe (Kanimase), kanizarke (Akre), kuzo (Zawita) , Kashane (Batifa) and Sharaneshe (Darkare) in Duhok Governorate-Kurdistan region/Iraq was analyzed using fifteen AFLP primers pairs. Similarity matrices were obtained based on the AFLP data to analyze genetic distance. Genetic diversity coefficient ranged from 0.1075 to 0.2540. The lowest genetic similarity was detected between sharansh and Akri (0.1075). The kanemas and Akri populations were most similar ones with coefficient of 0.2540. Clustering based on AFLP data for the five walnuts populations was identified at the 0.21 similarity level and two main clusters were identified, Cluster one included three populations: Akri, sharansh and bedoh; cluster two was composed of two populations: kanemas and Kuzo. Total generated bands screened from 15 primers were 517 bands for the five walnut populations with an average of 34.46 per primer, which 294 were polymorphic bands with an average of 19.6 polymorphic loci per primer.
This investigation was conducted to determine the allelopathic potential of water extract of some... more This investigation was conducted to determine the allelopathic potential of water extract of some crops and vegetables planted together in the same field at the same time. Five plant species were used to study the effects of their aqueous extract on germination and growth of each other. The shoot and root aqueous extract highly inhibited seed germination of all interacted plants, and the inhibitory effect of root extract was more than shoot aqueous extracts of different plants on the seedling growth. Highest inhibition percent on germination was obtained from pepper extracts of both shoot and root on sunflower (53.6, 28.6%); while the interaction between pepper and tomato plants showed the least inhibition percent among the tested plants. The shoot and root aqueous extract also exhibited intraspecific (autotoxicity), and interspecific allelopathy (heterotoxicity). In most cases autotoxicity appeared to be more severe than teletotoxicity, on seed germination and seedling growth of al...
The paper explores the genetic diversity and taxonomic classification of the genus Salix (willows... more The paper explores the genetic diversity and taxonomic classification of the genus Salix (willows), a taxonomically complex group in the Salicaceae family. It employs molecular markers, including AFLP (Amplified Fragment Length Polymorphism) and SRAP (Sequence-Related Amplified Polymorphism), alongside chloroplast sequences, to analyze genetic relationships among five Salix species (S. alba, S. babylonica, S. purpurea, S. acmophylla, and S. aegyptiaca). The findings reveal significant genetic variability and propose a revised infrageneric classification of Salix. Key results include: • S. alba and S. purpurea are closely related, forming a cluster, while S. babylonica is genetically distinct. S. acmophylla and S. aegyptiaca show close genetic similarity, likely due to geographic and environmental adaptations. The combined molecular markers (AFLP and SRAP) demonstrate high polymorphism rates, confirming their effectiveness for studying genetic diversity and phylogenetic relationships in Salix. The research also underscores the influence of environmental factors on species clustering, contributing to a better understanding of Salix taxonomy and genetic relationships.
ZANCO Journal of Pure and Applied Sciences, Aug 20, 2016
In this study, the genetic relatedness of five walnut populations in five different locations: Be... more In this study, the genetic relatedness of five walnut populations in five different locations: Bedohe (Kanimase), kanizarke (Akre), kuzo (Zawita) , Kashane (Batifa) and Sharaneshe (Darkare) in Duhok Governorate-Kurdistan region/Iraq was analyzed using fifteen AFLP primers pairs. Similarity matrices were obtained based on the AFLP data to analyze genetic distance. Genetic diversity coefficient ranged from 0.1075 to 0.2540. The lowest genetic similarity was detected between sharansh and Akri (0.1075). The kanemas and Akri populations were most similar ones with coefficient of 0.2540. Clustering based on AFLP data for the five walnuts populations was identified at the 0.21 similarity level and two main clusters were identified, Cluster one included three populations: Akri, sharansh and bedoh; cluster two was composed of two populations: kanemas and Kuzo. Total generated bands screened from 15 primers were 517 bands for the five walnut populations with an average of 34.46 per primer, which 294 were polymorphic bands with an average of 19.6 polymorphic loci per primer.
This investigation was conducted to determine the allelopathic potential of water extract of some... more This investigation was conducted to determine the allelopathic potential of water extract of some crops and vegetables planted together in the same field at the same time. Five plant species were used to study the effects of their aqueous extract on germination and growth of each other. The shoot and root aqueous extract highly inhibited seed germination of all interacted plants, and the inhibitory effect of root extract was more than shoot aqueous extracts of different plants on the seedling growth. Highest inhibition percent on germination was obtained from pepper extracts of both shoot and root on sunflower (53.6, 28.6%); while the interaction between pepper and tomato plants showed the least inhibition percent among the tested plants. The shoot and root aqueous extract also exhibited intraspecific (autotoxicity), and interspecific allelopathy (heterotoxicity). In most cases autotoxicity appeared to be more severe than teletotoxicity, on seed germination and seedling growth of al...
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