Department Of Botany
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Item Molecular data reveals two new species of Hypnea (Cystocloniaceae, Rhodophyta) from India: Hypnea indica sp. Nov. And Hypnea bullata sp. Nov.(De Gruyter Open Ltd, 2021-03-22T00:00:00) Kundu, Pushpendu; Bast, FelixWe used three molecular markers (COI-5P, rbcL and UPA) to investigate the diversity of Hypnea spp., an economically important red algal genus, collected from India. Our concatenated tree (COI-5P and rbcL) supported the monophyly of two new species, Hypnea indica sp. nov. and Hypnea bullata sp. nov. H. indica diverged from its closest two sister species, Hypnea cervicornis and Hypnea tenuis (by 15.9 and 11.2%, respectively, in COI-5P; and 3.4 and 3.2% in rbcL). We describe H. indica as a new species characterised by an erect, percurrent main axis with spinelike branchlets in acute angles, straight and forked apices, axial cells surrounded by large periaxial cells or two cells similar in size to the axial cell, and the presence of lenticular thickening in the cross-section of the thallus. H. bullata diverged from its closest sister species, Hypnea brasiliensis (by 10.9% in COI-5P and 3.3% in rbcL). H. bullata is characterized by a prostrate thallus up to 1.5 cm in height, highly anastomosed, with an axial cell surrounded by similar sized, or smaller, periaxial cells, tetrasporangia present near the base of branchlets, and the presence of lenticular thickening. � 2021 De Gruyter. All rights reserved.Item Molecular data reveals two new species of Hypnea (Cystocloniaceae, Rhodophyta) from India: Hypnea indica sp. Nov. And Hypnea bullata sp. Nov.(De Gruyter Open Ltd, 2021-03-22T00:00:00) Kundu, Pushpendu; Bast, FelixWe used three molecular markers (COI-5P, rbcL and UPA) to investigate the diversity of Hypnea spp., an economically important red algal genus, collected from India. Our concatenated tree (COI-5P and rbcL) supported the monophyly of two new species, Hypnea indica sp. nov. and Hypnea bullata sp. nov. H. indica diverged from its closest two sister species, Hypnea cervicornis and Hypnea tenuis (by 15.9 and 11.2%, respectively, in COI-5P; and 3.4 and 3.2% in rbcL). We describe H. indica as a new species characterised by an erect, percurrent main axis with spinelike branchlets in acute angles, straight and forked apices, axial cells surrounded by large periaxial cells or two cells similar in size to the axial cell, and the presence of lenticular thickening in the cross-section of the thallus. H. bullata diverged from its closest sister species, Hypnea brasiliensis (by 10.9% in COI-5P and 3.3% in rbcL). H. bullata is characterized by a prostrate thallus up to 1.5 cm in height, highly anastomosed, with an axial cell surrounded by similar sized, or smaller, periaxial cells, tetrasporangia present near the base of branchlets, and the presence of lenticular thickening. � 2021 De Gruyter. All rights reserved.Item Public acceptence of Evolution in India(CSIR-NISCAIR, 2018) Bast, Felix; Tahilramani, HeenaThe public acceptance of evolution has been in debate since the initial publication of Darwin’s theory about origin of species. According to public polls carried out in a range of countries, the public acceptance of evolution is low in many countries with high degree of religiosity. Although religiosity is high in India, public acceptance of evolution has never been objectively evaluated in India yet. The rejection or denial of evolution could possibly offer the risk of shifting science education to common or popular beliefs and ideas, for example, creationism and intelligent design. Aim of the present study was to find out the public acceptance of evolution in India by carrying out a primary survey in 14 Indian states. Based upon the answers by the participants, the study explored the variables related to public acceptance of evolution namely, gender, religion, politics and occupation. The results showed that the 69.4% participants accepted evolution, which is very high compared with other countries of the world. Plausible reasons for high acceptance of evolution in India is being discussed in this paper.Item Chloroplast DNA phylogeography of holy basil (Ocimum tenuiflorum) in Indian subcontinent(2014) Bast, Felix; Rani, Pooja; Meena, DevendraOcimum tenuiflorum L., holy basil "Tulsi", is an important medicinal plant that is being grown and traditionally revered throughout Indian Subcontinent for thousands of years; however, DNA sequence-based genetic diversity of this aromatic herb is not yet known. In this report, we present our studies on the phylogeography of this species using trnL-trnF intergenic spacer of plastid genome as the DNA barcode for isolates from Indian subcontinent. Our pairwise distance analyses indicated that genetic heterogeneity of isolates remained quite low, with overall mean nucleotide p-distance of 5?10-4. However, our sensitive phylogenetic analysis using maximum likelihood framework was able to reveal subtle intraspecific molecular evolution of this species within the subcontinent. All isolates except that from North-Central India formed a distinct phylogenetic clade, notwithstanding low bootstrap support and collapse of the clade in Bayesian Inference. North-Central isolates occupied more basal position compared to other isolates, which is suggestive of its evolutionarily primitive status. Indian isolates formed a monophyletic and well-supported clade within O. tenuiflorum clade, which indicates a distinct haplotype. Given the vast geographical area of more than 3 million km 2 encompassing many exclusive biogeographical and ecological zones, relatively low rate of evolution of this herb at this locus in India is particularly interesting. ? 2014 Felix Bast et al.Item DNA barcoding of a new record of epi-endophytic green algae Ulvella leptochaete (Ulvellaceae, Chlorophyta) in India(Springer India, 2014) Bast, Felix; Bhushan, S.; John, A.A.Epi-endophytic green algae comprise one of the most diverse and phylogenetically primitive groups of green algae and are considered to be ubiquitous in the world's oceans; however, no reports of these algae exist from India. Here we report the serendipitous discovery of Ulvella growing on intertidal green algae Cladophora glomerata and benthic red algae Laurencia obtusa collected from India. DNA barcodes at nuclear ribosomal DNA Internal Transcriber Spacer (nrDNA ITS) 1 and 2 regions for Indian isolates from the west and east coasts have been generated for the first time. Based on morphology and DNA barcoding, isolates were identified as Ulvella leptochaete. Phylogenetic reconstruction of concatenated dataset using Maximum Likelihood method differentiated Indian isolates from other accessions of this alga available in Genbank, albeit with low bootstrap support. Monophyly of Ulvella leptochaete was obvious in both of our phylogenetic analyses. With this first report of epi-endophytic algae from Indian territorial waters, the dire need to catalogue its cryptic diversity is highlighted and avenues of future research are discussed. ? 2014 Indian Academy of Sciences.Item Sequence-based Phylogeography of Seaweeds: How Current Distribution is Shaped by Accumulation of Past?(Graduate School of Kuroshio Science, Kochi University, 2013) Bast, FelixState-of-the-art techniques of phylogeography are now routinely used to assess changes at DNA level accumulated over time, and thereby to study forces that might have influenced distribution patterns of organisms. Presented in this mini-review is the works on phylogeography of edible green seaweed Monostroma in Japan and how the current distribution pattern of this algae might have been influenced with the history of medieval Japan. Also presented herein is the striking revelations in ancient Japanese waka – a form of short poetry – that documents historical distribution patterns of this algae, and how these are congruent with findings in phylogeography reconstruction.