Scientists Look Closer on Evolution of Plant's Self-fertilization
June 26, 2013| |
The US Department of Energy Joint Genome Institute has sequenced and compared the genome of Capsella rubella with Capsella grandiflora and members of the closely related Arabidopsis genus to have a better understanding of the effects of selfing of C. rubella's genome.
The study, which was published in the June 9 edition of Nature Genetics revealed that C. rubella showed a mass decline of the removal of harmful mutations without a naturally occurring alteration in the amount of genes present that can move between chromosomes. From these findings, it is theorized that a dramatic event left C. rubella in a situation where a need for pollinators outweighed the known negatives of inbreeding and caused the C. rubella to shift into selfing. Though this caused the C. rubella to face a bottleneck, its ancestral genome structure remained intact.
For more information, visit http://jginews.blogspot.com/2013/06/doe-jgi-science-highlights-capsella.html. To access the full journal article, go to http://www.nature.com/ng/journal/vaop/ncurrent/full/ng.2669.html.
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