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排序方式: 共有159条查询结果,搜索用时 15 毫秒
151.
K van Oers A W Santure I De Cauwer N EM van Bers R PMA Crooijmans B C Sheldon M E Visser J Slate M AM Groenen 《Heredity》2014,112(3):307-316
Linking variation in quantitative traits to variation in the genome is an important, but
challenging task in the study of life-history evolution. Linkage maps provide a valuable
tool for the unravelling of such trait−gene associations. Moreover, they give
insight into recombination landscapes and between-species karyotype evolution. Here we
used genotype data, generated from a 10k single-nucleotide polymorphism (SNP) chip, of
over 2000 individuals to produce high-density linkage maps of the great tit (Parus
major), a passerine bird that serves as a model species for ecological and
evolutionary questions. We created independent maps from two distinct populations: a
captive F2-cross from The Netherlands (NL) and a wild population from the United Kingdom
(UK). The two maps contained 6554 SNPs in 32 linkage groups, spanning 2010 cM and
1917 cM for the NL and UK populations, respectively, and were similar in size and
marker order. Subtle levels of heterochiasmy within and between chromosomes were
remarkably consistent between the populations, suggesting that the local departures from
sex-equal recombination rates have evolved. This key and surprising result would have been
impossible to detect if only one population was mapped. A comparison with zebra finch
Taeniopygia guttata, chicken Gallus gallus and the green anole lizard
Anolis carolinensis genomes provided further insight into the evolution of
avian karyotypes. 相似文献
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Nasa Sinnott-Armstrong Isabel S. Sousa Samantha Laber Elizabeth Rendina-Ruedy Simon E. Nitter Dankel Teresa Ferreira Gunnar Mellgren David Karasik Manuel Rivas Jonathan Pritchard Anyonya R. Guntur Roger D. Cox Cecilia M. Lindgren Hans Hauner Richard Sallari Clifford J. Rosen Yi-Hsiang Hsu Eric S. Lander Melina Claussnitzer 《Cell metabolism》2021,33(3):615-628.e13
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158.
R L Mellgren 《FASEB journal》1987,1(2):110-115
Proteases having a neutral pH optimum and an absolute requirement for calcium ion are found in virtually all mammalian cells. Association of calcium-dependent proteases and a specific inhibitor protein with biological membranes seems to be an important regulatory feature of this proteolytic system, and it is likely that membranes are preferred sites for calcium-dependent protease action. Several recent hypotheses for the physiological function of calcium-dependent proteolysis are consistent with a membrane-associated protease action. Calcium-dependent proteases may participate in cell membrane fusion: the proteolysis of membrane proteins, which is required for the efficient fusion of erythrocytes, may be catalyzed by these enzymes. There is also evidence for the involvement of calcium-dependent proteolysis in postsynaptic membrane remodeling in the hippocampus after long-term potentiation. Although the relationship of the proteolysis to synaptic function is not known, it could have important physiological or pathophysiological consequences. Finally, it has recently been suggested that calcium-dependent proteolysis may be a physiologically significant mechanism for activating membrane-associated protein kinase C after exposure of some cell types to phorbol esters or other mitogens. Further pursuit of these hypotheses may reveal a novel role for intracellular calcium-regulated proteolysis in membrane-associated cell functions. 相似文献
159.
Marieke Biegstraaten Ivo N van Schaik Wouter Wieling Frits A Wijburg Carla EM Hollak 《BMC neurology》2010,10(1):38