Articles
COMPARATIVE ANALYSIS OF THE DUPLICATION DEGREE AND GENETIC RELATIONSHIPS BETWEEN THREE APPLE COLLECTIONS LOCATED IN THE PYRENEAN REGION
Article number
1100_15
Pages
109 – 113
Language
English
Abstract
One of the possibilities to improve the management of germplasm collections is
to identify the redundancies that inevitably appear within and between collections.
For
this purpose, an accurate identification of the preserved accessions is an indispensable
requisite.
In terms of identification, traditional methods based on morphological and
agronomic traits are less effective than molecular markers due to the fact that they can
be highly influenced by environmental factors.
The aim of this study was to quantify
the duplication degree among three apple collections located in the Spanish and French
Pyrenean region, using a common set of 14 SSR markers, as well as to assess the genetic
relationships between the accessions held in the three collections.
Only 17 genotypes
(≈5% of the identified ones) were present in both Spanish and French collections.
Two
duplicates groups, nine (putative) synonyms and nine homonyms were identified.
Remarkable differences in allelic variability and allelic frequencies distribution were
found between the material preserved in Spanish and French collections, but the
duplication and overlap highlighted the interest of coordinated international studies
aiming at optimizing the management of germplasm collections.
to identify the redundancies that inevitably appear within and between collections.
For
this purpose, an accurate identification of the preserved accessions is an indispensable
requisite.
In terms of identification, traditional methods based on morphological and
agronomic traits are less effective than molecular markers due to the fact that they can
be highly influenced by environmental factors.
The aim of this study was to quantify
the duplication degree among three apple collections located in the Spanish and French
Pyrenean region, using a common set of 14 SSR markers, as well as to assess the genetic
relationships between the accessions held in the three collections.
Only 17 genotypes
(≈5% of the identified ones) were present in both Spanish and French collections.
Two
duplicates groups, nine (putative) synonyms and nine homonyms were identified.
Remarkable differences in allelic variability and allelic frequencies distribution were
found between the material preserved in Spanish and French collections, but the
duplication and overlap highlighted the interest of coordinated international studies
aiming at optimizing the management of germplasm collections.
Authors
J. Urrestarazu, C. Miranda, L.G. Santesteban, J.B. Royo, E. Leterme, S. Roques, C. Denancé, L. Feugey, C.E. Durel
Keywords
microsatellite, SSR, identities, genetic diversity, Malus × domestica
Online Articles (27)