BACKGROUND DNA barcoding will revolutionize our understanding of fern ecology, most especially because the accurate identification of the independent but cryptic gametophyte phase of the fern's life history--an endeavor previously impossible--will finally be feasible. In this study, we assess the discriminatory power of the core plant DNA barcode (rbcL and matK), as well as alternatively propos...

BACKGROUND DNA barcode differences within animal species are usually much less than differences among species, making it generally straightforward to match unknowns to a reference library. Here we aim to better understand the evolutionary mechanisms underlying this usual "barcode gap" pattern. We employ avian barcode libraries to test a central prediction of neutral theory, namely, intraspecifi...

Species numbers are increasing rapidly. This is due mostly to taxonomic inflation, where known subspecies are raised to species as a result in a change in species concept, rather than to new discoveries. Yet macroecologists and conservation biologists depend heavily on species lists, treating them as accurate and stable measures of biodiversity. Deciding on a standardized, universal species lis...

Kalimantan is an island with abundance of kayu Kuning (yellow-fruited moonseed) . Kayu kuning used for three different plant species, namely Arcangelisia flava (L.) Merr., Fibraurea tinctoria Lour., and Coscinium fenestratum (Gaertn.) Colebr. Therefore, it creates confusion may cause improper use. It has properties such as anti-diabetic, antiplasmodial, antidiarrheal, hepatitis, antidote. The s...

Several hematologic malignancies are associated with specific chromosomal translocations. Because of the dispersed distribution, chromosomal breakpoints may be difficult t o detect using molecular techniques. We present a new application of a recently developed method, DNA fiber fluorescence in situ hybridization (fiber FISH), which allows direct visualization and mapping of chromosomal breakpo...