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    • KA BOLARINWA

      Articles written in Journal of Biosciences

    • Volume 45 All articles Published: 9 July 2020 Article ID 0096 Article

      Re-evaluation of the phylogenetic relationships and species delimitation of two closely related families (Lamiaceae and Verbenaceae) using two DNA barcode markers

      O O OYEBANJI E C CHUKWUMA KA BOLARINWA O I ADEJOBI SB ADEYEMI A O AYOOLA

      More Details Abstract Fulltext PDF

      The families Lamiaceae and Verbenaceae comprise several closely related species that possess high morphologicalsynapomorphic traits. Hence, there is a tendency of species misidentification using only the morphologicalcharacters. Herein, we evaluated the discriminatory power of the universal DNA barcodes (matKand rbcL) for 53 species spanning the two families. Using these markers, we inferred phylogenetic relationshipsand conducted species delimitation analysis using four delimitation methods: Automated Barcode GapDiscovery (ABGD), TaxonDNA, Bayesian Poisson Tree Processes (bPTP) and General Mixed Yule Coalescent(GMYC). The phylogenetic reconstruction based on the matK gene resolved the relationships between thefamilies and further suggested the expansion of the Lamiaceae to include some core Verbanaceae genus, e.g.,Gmelina. The rbcL marker using the TaxonDNA method displayed high species delimitation resolutions, whilethe ABGD, GMYC, and bPTP generated different number of Operational Taxonomic Units/genetic clusters.Our results underscored the efficiency of the matK and rbcL genes as reliable markers for resolving phylogeneticrelationships and species delimitation of both families, respectively. The current study provides insightsinto the DNA barcode applications in these families, at the same time contributing to the current understandingof genetic divergence patterns in angiosperms.

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      Forthcoming Special issue.


    • To trigger further research on plant mitochondria, the Journal of Biosciences is bringing out a special issue titled "Plant Mitochondria: Properties and Interactions with Other Organelles".


      Plant mitochondria are quite distinct and have unique features, such as a cyanide-insensitive alternate pathway. They also interact with chloroplasts to optimize photosynthetic carbon assimilation.


      Submissions are welcome until 30 July 2023. The contributions can be original articles, short communications, reviews, or mini-reviews on any topic related to plant mitochondria.


      Authors can submit their articles online at https://www.editorialmanager.com/jbsc/default2.aspx

      Posted on April 12, 2023
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