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Researchers have instead focused on analyzing the DNA of modern birds. The aim of the study is to search for clues in the genes of birds that explain the loss of teeth during evolution. In the absence of teeth, birds heavily rely on their beaks(鸟嘴)to process food. They also have an ...
Recombination, the process of DNA exchange between homologous chromosomes during meiosis, plays a major role in genomic diversity and evolutionary change. Variation in recombination rate is widespread despite recombination often being essential for progression of meiosis. One such variation is heterochiasmy...
The method was devel- oped by Le Douarin (9), who made the important observation that the nuclei of quail cells have a large amount of condensed, heterochromatic nucleolar DNA, while chick nuclei do not. As a result, quail-chick chimeras made by transplanting tissues from one species to ...
. We also regularly collected control samples during field work by pipetting 1 ml of saline solution into a sterile vial from the saline stock, which ensured that all bacteria identified were of cloacal origin and not due to contamination of the stock solution or of reagents used for DNA ...
Table S18. STR summary of DIP (crested ibis DNA identification profiling). Table S19. Population parameters of STR loci used in DIP. Table S20. Paternity test of a crested ibis pedigree. (XLSX 104 KB) 13059_2014_557_MOESM2_ESM.pdf Additional file 2: Figure S1.: Circular display of ...
Researchers have instead focused on analyzing the DNA of modern birds. The aim of the study is to search for clues in the genes of birds that explain the loss of teeth during evolution. In the absence of teeth, birds heavily rely on their beaks(鸟嘴)to process food. They also have an ...
DNA sequences were either down- loaded from GenBank21,23,41,42 or newly obtained using standard molecular protocols42. Taxon sampling and GenBank accession numbers are given in Supplementary Table S5. Scientific Reports | 5:11860 | DOI: 10.1038/srep11860 8 www.nature.com/scientificreports/ ...