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Wageningen Researchers Release Detailed Genetic Map of Roses
Posted by: Prof. Dr. M. Raupp (IP Logged)
Date: April 17, 2017 07:57AM

A team of breeding researchers and geneticists from Wageningen University
and Research has successfully created a highly detailed genetic map of
roses. Roses are tetraploid and it is unclear how the four sets of
chromosomes pair during cell division, an important process that determines
which genes are passed on to the next generation after crossing two roses.

The research team developed a new software to be able to create a good
genetic map. More than 25,000 genetic markers can be found on the new
genetic map of roses which are evenly divided across the 4 x 7 chromosomes.
Through the new software, the researchers discovered that the way in which
rose chromosomes pair during meiosis is not straightforward. This pairing is
mostly random, but at certain locations on the chromosomes the same two
chromosomes nearly always or always pair.


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