Preliminary Characterization and Haustorium Anatomy of Thonningia Sanguinea Vahl. (Balanophoraceae); a Cryptic Parasitic Species in Southern Nigeria

O Imarhiagbe and Aigbokhan Ei
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O Imarhiagbe: Department of Biological Science, Edo University Iyamho, Edo State, Nigeria
Aigbokhan Ei: Department of Plant Biology and Biotechnology, University of Benin, Benin City, Nigeria

JOJ Wildlife & Biodiversity, 2020, vol. 2, issue 1, 61-69

Abstract: The recognition of Thonningia sanguinea as a monotypic or polytypic species has been a subject of debate among plant taxonomists. Hence, to devise useful diagnostic and key distinguishing features, 18 morphological characters from 37 populations from various forested areas harbouring the parasite in Southern Nigeria were evaluated and subjected to a multifactorial analysis. Microanatomic features of the parasite-host interface were also examined. Results showed that the first 2 Principal components accounted for just 37% of the variability and as such were unable to explain much of the genetic variability among the populations. However, the dispersion and clustering pattern of various populations of T. sanguinea in the PCA scatter plot and the dendrogram showed some instances where subpopulations were distributed in different clusters. This indicates the possibility of an inherent variation within subpopulations. The host-parasite interface was observed to be of the complex type, comprising numerous composite bundles distributed in the gall (haustorium). In conclusion, T. sanguinea, morphologically, can be regarded as a monotypic species.

Keywords: Journal of Wildlife and Biodiversity; Journal of Wildlife Management; Journal of Biodiversity; Biodiversity Journal; juniper publishers wildlife journals list; journals wildlife biology; wildlife scientific journals; best wildlife journals; wildlife research journals; biodiversity conservation journals; scholarly open access journals; peer reivewed journals; junipe publishers review; Water Circulation; Climate Change; Animals; Irretrievably; Fumes; Moisture; Battery; Bathing; Dishes; Physical processes; Organic substances; Atmospheric pressure; Accuracy; Commensurate; Mineral; Photosynthesis; Excretions; Civilization; Organisms; Glaciers (search for similar items in EconPapers)
Date: 2020
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Persistent link: https://EconPapers.repec.org/RePEc:adp:jjojwb:v:2:y:2020:i:1:p:61-69

DOI: 10.19080/JOJWB.2020.02.555588

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