Construction of a genetic linkage map for Camellia sinensis (tea)

Article Abstract:

A genetic linkage map for Camellia sinensis (tea) is discussed. The evidence for some findings and the analysis then needed to assemble the markers from the female parent into the first linkage map for tea are discussed. Genetic linkage maps have much potential in increasing speed/precision of cultivar improvement efforts for woody perennial tree crops.

Statistics, Tea (Beverage), Plant genetics, Tea, Cluster analysis, Camellia, Camellias

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What do patterns of genetic variability reveal about mitochondrial recombination?

Article Abstract:

It is shown in this short review article that measures of linkage disequilibrium differ in the ways they treat data that are not informative about recombination and that when just pairwise comparisons that are informative about recombination are used, agreement exists. So significant negative correlations between linkage disequilibrium and distance, in at least some of the data sets, is a pattern itself, and must be explained. Whether or not plausible mutational and selective processes can give rise to such a pattern is discussed.

Reports, Biological diversity, Biodiversity, Mitochondria, Genetic recombination, Genetic research

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Genetic relationships among Merluccius species

Article Abstract:

Genetic data from nine species of the fish Merluccius, or hake, of America and Euro-Africa from 21 informative allozyme loci and new insight into phylogenetic and biogeographical relationships in the genus are discussed. A northwest Atlantic origin of the genus is likely, and likely unsampled M. albidus broadly distributed in the Caribbean is the most primitive species extant.

Europe, Caribbean Region, Argentina, Pacific Ocean, Spain, Africa, New Zealand, Panama, Mediterranean Sea, Namibia, Atlantic Ocean, Mauritania, Phylogeny, Isoenzymes, Biogeography, Hake, Hake (Fishes)

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