Results 71 to 80 of about 4,312,091 (238)
The effect of multiple paternity on genetic diversity during and after colonisation [PDF]
PLoS ONE 8(10) e75587 (2013), 2012 In metapopulations, genetic variation of local populations is influenced by the genetic content of the founders, and of migrants following establishment. We analyse the effect of multiple paternity on genetic diversity using a model in which the highly promiscuous marine snail Littorina saxatilis expands from a mainland to colonise initially empty ...
arxiv +1 more source
Genetic Selection and Conservation of Genetic Diversity* [PDF]
Reproduction in Domestic Animals, 2012 ContentsFor 100s of years, livestock producers have employed various types of selection to alter livestock populations. Current selection strategies are little different, except our technologies for selection have become more powerful. Genetic resources at the breed level have been in and out of favour over time.
openaire +3 more sources
Phytohormone and Light Regulation of Chlorophyll Degradation
Frontiers in Plant Science, 2017 Degreening, due to the net loss of chlorophyll (Chl), is the most prominent symptom during the processes of leaf senescence, fruit ripening, and seed maturation. Over the last decade or so, extensive identifications of Chl catabolic genes (CCGs) have led
Xiaoyu Zhu +7 more
doaj +1 more source
A communal catalogue reveals Earth’s multiscale microbial diversity
Nature, 2017 The spontaneous deamination of cytosine is a major source of transitions from C•G to T•A base pairs, which account for half of known pathogenic point mutations in humans.
Nicole M. Gaudelli +6 more
semanticscholar +1 more source
Genetic diversity in a crop metapopulation [PDF]
Heredity, 2009 The need to protect crop genetic resources has sparked a growing interest in the genetic diversity maintained in traditional farming systems worldwide. Although traditional seed management has been proposed as an important determinant of genetic diversity and structure in crops, no models exist that can adequately describe the genetic effects of seed ...
van Heerwaarden, J. +2 more
openaire +4 more sources
Expansion under climate change: the genetic consequences [PDF]
Bulletin of Mathematical Biology, Springer Verlag, 2016, 2016 Range expansion and range shifts are crucial population responses to climate change. Genetic consequences are not well understood but are clearly coupled to ecological dynamics that, in turn, are driven by shifting climate conditions. We model a population with a deterministic reaction-- diffusion model coupled to a heterogeneous environment that ...
arxiv
A view of Neandertal genetic diversity
Nature Genetics, 2000 In order to further study of the Neandertal mtDNA gene pool, we analyzed the amino acid composition and extent of amino acid racemization in 15 bones found in the Vindija Cave (Croatia). Seven samples proved to have a high content of amino acids, an amino acid composition similar to that of the contemporary bone, and a low level of racemization of ...
Krings M +9 more
openaire +6 more sources
Evolution and genetic diversity of Theileria [PDF]
Infection, Genetics and Evolution, 2014 Theileria parasites infect a wide range of domestic and wild ruminants worldwide, causing diseases with varying degrees of severity. A broad classification, based on the parasite's ability to transform the leukocytes of host animals, divides Theileria into two groups, consisting of transforming and non-transforming species.
Naoaki Yokoyama +3 more
openaire +3 more sources
Lower genetic diversity in the limpet Patella caerulea on urban coastal structures compared to natural rocky habitats [PDF]
Marine Biology 156 (2009) 2313, 2009 Human-made structures are increasingly found in marine coastal habitats. The aim of the present study was to explore whether urban coastal structures can affect the genetic variation of hard-bottom species. We conducted a population genetic analysis on the limpet Patella caerulea sampled in both natural and artificial habitats along the Adriatic coast.
arxiv
Whole-exome sequencing of pancreatic cancer defines genetic diversity and therapeutic targets
Nature Communications, 2015 Pancreatic ductal adenocarcinoma (PDA) has a dismal prognosis and insights into both disease etiology and targeted intervention are needed. A total of 109 micro-dissected PDA cases were subjected to whole-exome sequencing. Microdissection enriches tumour
A. Witkiewicz +14 more
semanticscholar +1 more source