To study the evolutionary relationship of reverse transcriptase (RT) containing genetic elements, a phylogenetic tree of 82 retroelements from animals, plants, protozoans and bacteria was constructed. The tree was based on seven amino acid domains totalling 178 residues identified in all RTs. We ha...
This process is influenced by a variety of factors, including life history, mating system, and the direction of sexual selection17,18. Currently, our knowledge on the evolution of bird W chromosomes is mainly derived from studies in a limited number of model species, such as ostrich19,20, ...
Cell envelope diversity and evolution across the bacterial tree of life This Review discusses the diversity of cell envelope architectures across major bacterial phyla and highlights conserved features found in diderm lineages. Ameena Hashimi Elitza I. Tocheva ...
The Tarsier are haplorrhine and considered a sister taxon to the anthropoids [133]. Their eyes are bigger than their whole brain. This and some differences in the neural organization of their optical sensory system may be attributed to the fact that they probably secondarily changed from a diu...
225 bp. The bootstrap consensus tree inferred from 500 replicates was generated. Branches corresponding to partitions reproduced in less than 60% bootstrap replicates were collapsed. The tree is drawn to scale, with branch lengths measured in the number of substitutions per site (indicated next to...
Drivers of an epic radiation: the role of climate and islands in species diversification and reproductive-mode evolution of Old-World tree frogs Ricefishes of the genus Oryzias occur commonly in the fresh and brackish waters in coastal lowlands ranging from India across Southeast Asia and on to ...
To seek molecular evidence for inhibition of recombination and to compare the evolutionary patterns of neo-X and neo-Y chromosomes, we sequenced the intergenic and intronic fragments from the inverted region composing a total of 35.1 kilobases (kb), as well as 12.6 kb from the new 'PAR's and...
A phylogenetic tree was constructed to compare the sea urchin homeobox gene family to those of vertebrates, with the result that with the only a few ... M Howard-Ashby,SC Materna,CT Brown,... - 《Developmental Biology》 被引量: 190发表: 2006年 Novel gene expression patterns in hybrid emb...
was aligned with similar proteins from other species and the results were used to generate the tree shown in Figure6. Dicots, monocots and non-flowering land plants form three distinct groupings, with low E values that gradually increase with evolutionary distance from the reference species. Betwee...
Conservation in gene structure is an indication of a common ancestor while conserved amino acid signatures are linked to functions such as protein-protein interactions or regulatory sites. Figure 1 WOX genes from model plant genomes. The neighbor-joining tree of the WOX proteins from the 5 ...