Linaria Mill. (Plantaginaceae) with about 160 spp. is the largest genus of the tribe Antirrhineae. We conducted phylogenetic analyses of nuclear ribosomal DNA internal transcribed spacer region (ITS) and chloroplast DNA (rpl32-trnL) sequence data to test the monophyly of currently recognized sections in Linaria. For this purpose 86 species representing seven sections of Linaria and one species ...

How cells divide and differentiate is a fundamental question in organismal development; however, the discovery of differentiation processes in various cell types is laborious and sometimes impossible. Phylogenetic analysis is typically used to reconstruct evolutionary processes based on inherent characters. It could also be used to reconstruct developmental processes based on the developmental ...

................................................................................................... 10 Thesis declaration .................................................................................... 11 Acknowledgments ................................................................................... 12 General Introduction ..................................................................

colibacillosis caused by avian pathogenic escherichia coli (apec) is an economic threat to the poultry industry throughout the world. some of the virulence genes may enhance the ability of e. coli isolates to grow in the tissues of broilers. the apec strains are assigned to a few distinct phylogenetic groups. the purpose of the present study was to detect the virulence genes and phylogenetic gr...

Most species of Paraphlomis are distributed in the south Yangtze River China. In this study, a new species, P. nana, from northeast Chongqing north is described and illustrated. Bayesian inference maximum likelihood analyses based on two nuclear ribosomal DNA regions (ITS ETS) three plastid markers (rpl32-trnL, rps16, trnL-trnF) were carried out to explore phylogenetic position within Paraphlom...

PANDIT is a database of homologous sequence alignments accompanied by estimates of their corresponding phylogenetic trees. It provides a valuable resource to those studying phylogenetic methodology and the evolution of coding-DNA and protein sequences. Currently in version 17.0, PANDIT comprises 7738 families of homologous protein domains; for each family, DNA and corresponding amino acid seque...

The path-difference metric is one of the oldest and most popular distances for the comparison of phylogenetictrees, but its statistical properties are still quite unknown. In this paper we compute the expected valueunder the Yule model of evolution of its square on the space of fully resolved rooted phylogenetic trees withn leaves. This complements previous work by Steel–Penny a...