Genetical Distances Between the
Main Chondriome Types a,
b, g, d, e in Potato
- A. Lössl,
Cytoplasm Genome Research -
For subsequent selection of fusion combinations
it was necessary to get an overview about the different phylogenetic branches
the main mt types in comparison to the related Solanum wild species.
For this purpose the fragment patterns
which were generated by the Mt DNA probes were used to perform a cluster
analysis and to calculate the relationships of a,
b, g, d and e
to Solanum wild species. The
figure below shows a two dimensional screening, calculated with the model
of euclidic distances.
According to dendrogramme and 2-dimensional
screen the mt-a and
type were closely related to S. stoloniferum and S. demissum
mt genomes. Mt-b
is defined as S. tuberosum mt genome. Mt-e
is related to S. andigena, goniocalyx, phureja, curtilobum, multidissectum,
ajanhuiri and chauca mt genomes.
Dendrogram of genetical distances
between different Solanum mt DNAs.
The genetical distances were calculated
with the model of Euclidic distance. Distances between clusters were calculated
by the method ´Average Linkage between Groups´.
RFLP data derive from hybridisation
with mt probes containing cob, rps14, rpl5, coxI, rpl2, ccb256, nd3,
rps12, atpA, atp6 and orf206.
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Cytoplasm Genome Research
Andreas LÖSSL, 15.10.2010