Taxonomy

Author Citation Before starting the detailed discussion first I simply answer the first arising question what is author citation? In a sense of Botany, every living being has a unique botanical name by which it is recognized (i.e.Mango=Mangifera indica, Jackfruit=Artocarpus heterophyllus), if it does not have any then it will …

The polymerase chain reaction, generally known as PCR, is used in almost every application of gene technology. It is a method for rapid production of a very large number of copies of a particular fragment of DNA. Virtually unlimited quantities of a length of DNA can be produced from the …

DNA Barcoding DNA barcoding is a method of species identification using a short section of DNA from a specific gene or genes. Everyone is familiar with industrial barcodes as unique identifiers for commercial products. Similar to these industrial barcodes, short gene segments – known as DNA barcodes – are unique …

What is marker? Marker may be defined as “Mark of identification”. In Biology three major types of markers are used: Morphological marker (also called “classical” or “visible” markers) which are phenotypic traits. Biochemical markers, which are called isozymes- multiple forms of enzymes, including allelic variants of enzymes. A genetic marker …

Aquatic plants are species that perpetuate their life cycle in still or flowing water, or on inundated or non-inundated hydric soils. Aquatic angiosperms inhabit oceans, lakes, rivers, end wetlands. The transition to an aquatic life has been achieved by only 2% of the approximately 350,000 angiosperm species (Cook 1990). Bangladesh …

Before classification we have to know what is a medicinal plant. There are many definitions.  World Health Organisation (WHO) has defined medicinal plants as plants that contain properties or compounds that can be used for therapeutic purposes or those that synthesize metabolites to produce useful drugs (WHO 2008). We can classify …

ঢাকা বিশ্ববিদ্যালয়ের কার্জন হল, এই নামটার সাথে জড়িয়ে আছে না বলা অনেক স্মৃতি। যখনই ঢাকা শহরের এই যন্ত্রচালিত জীবন অসহ্য মনে হয়, অসহ্য মনে হয় যানযট, সবুজের জন্য খা খা করে মন তখনই এই কার্জনহলে এসে নিজেকে তৃপ্ত মনে হয়। যারা ক্যাম্পাসে সারাদিনই ক্লাস, ল্যাব, মিড, প্রেজেন্টেশন নিয়ে দৌড়ে ক্লান্ত …

It is estimated that in the present world, the number of plant species is as many as five million. Among them about 391,000 species of vascular plants-are currently known to science of which nearly 369,000 species (94%) are phanerogamic or flowering plants as other 6% is consisted with cryptogamic or …

Systematic position According to Bentham and Hooker it is placed under the series Coronaricae. Engler places it under the order Liliflorae. Hutchinson places it under the order Liliales of the division Corolliferae. Distribution The members of the family are cosmopolitan and specially abundant in the warmer parts of the tropical …

Systematic position Bentham and Hooker placed it in the sub-class Gamopetalae,the series Bicarpellate and Cohort Gentianales . According to Engler it belongs to the sub-class Metachlymadeae, the sub-order Gentianineae under the order Controtae.Hutchinson places it under the order Apocynales of the Phylum Lignosae. Distribution The family contains about 300 genera …