MALAT1 is one of the best-conserved long ncRNAs in mammals and shares several characteristics, among them nuclear retention and a non-standard processing of its 3’ end, with the longer, but less well conserved, adjacent MENβ RNA. We show that MALAT1 is conserved among gnathostomes (with the possible exception of birds), while MENβ likely originated in the mammalian stem lineage. Evolutionary co...

We have compared the Y chromosomal lineage dating between sequence data and commonly used Y-SNP plus Y-STR data. The coalescent times estimated using evolutionary Y-STR mutation rates correspond best with sequence-based dating when the lineages include the most ancient haplogroup A individuals. However, the times using slow mutated STR markers with genealogical rates fit well with sequence-base...

C. Supporting Statement For comparison and completeness of this proposal Latimeria chalumnae is also discussed. Coelacanths (Latimeria spp.) are the sole survivors of an ancient Devonian lineage of crossopterygian fish, which played a pivotal role in the evolution of land-living tetrapods. The species with the extremely slow evolutionary rate and an enormous evolutionary age represents the clas...

The development of new scientific concepts today is an outcome of the accumulated knowledge built over time. Every scientific domain requires understanding of the trends of the dependencies between its subdomains. Analyses of trends to capture such dependencies using conventional document modeling techniques is a challenging task due to two reasons: (1) conventional vector-space modeling based ...

Remarkable diversity in recognized endemic centres as well as noteworthy disjunct distributions have led students of the pteridophytes to seek historical explanations for these phenomena. A suite of distinctive attributes limit the array of possible explanations: most biogeographically significant are ( I ) the smaller number of species-range determinants, and (2) the substantial capacity for l...

Background: Every day, many children are born by assisted reproductive techniques. For some infertile couples have no other way to have a child except donation. So far, there are too many children are born by donation protocols or surrogacy. As in donation protocols and surrogacy, a third party helps the couple by sharing gamete, embryo or uterus, there can be some social, legal and psychologic...

Hybridization and incomplete lineage sorting (ILS) are two evolutionary processes that result in incongruence among gene trees and complicate the identification of the species evolutionary history. Although a wide array of methods have been developed for inference of species phylogeny in the presence of each of these two processes individually, methods that can account for both of them simultan...

Abstract This article introduces and analyzes the Gurustutiratnāvalī , a sophisticated eighteenth-century Sanskrit hymn composed by Govinda Kaula of Kashmir in praise his teacher’s teacher, prolific author Sāhib Kaula. It evaluates evidence for Kaula’s dating, lineage, literary activity presents first published edition translation select verses based on four manuscripts. The analysis focuses wa...

The ease with which the genetic algorithm can generate good solutions to challenging optimization problems has resulted in a tendency for researchers to overlook the easily gathered and largely untapped raw data present in the ancestral relationships that guide a population to convergence. This article introduces the notion of a lineage tree structure and associated ancestor count measure that ...

With the increasing amount and diversity of information available on the Internet, there has been a huge growth in information systems that need to integrate data from distributed, heterogeneous data sources. Tracing the lineage of the integrated data is one of the current problems being addressed in data warehouse research. In this chapter, we propose a new approach for tracing data lineage wh...