Abstract
Genetic diversity of Avena strigosa Schreb. ecotypes on the basis of isoenzyme markers Genetic diversity was analyzed in 19 ecotypes of the diploid oat A. strigosa originating from various geographical regions of the world. Six isoenzyme systems (AAT, ACP, EST, LAP, MDH, PX) were studied and 16 loci were identified. Only two loci ( Est4 and Mdh2 ) were polymorphic. Ecotypes were characterized by the percentage of polymorphic loci (P=3.3%), the mean number of alleles per locus (A=1.04) and intrapopulation diversity (H S =0.013). Total genetic diversity (H T =0.07) and interpopulation diversity (D ST =0.057) were examined as well. The value of the coefficient of gene differentiation (G ST =0.821) indicated that diversity among populations was an important contributor to total variability. Genetic similarity between A. strigosa populations was very high (I N =0.94). Cluster analysis did not demonstrate strongly differentiated groups among the ecotypes examined.
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Claims 10
Claim · model-written summary
Six isoenzyme systems yielded 16 identified loci.
Not reportedTaxon
Verbatim
e0“Six isoenzyme systems (AAT, ACP, EST, LAP, MDH, PX) were studied and 16 loci were identified”
Claim · model-written summary
Only Est4 and Mdh2 were polymorphic.
Not reportedTaxon
Verbatim
e0“Only two loci ( Est4 and Mdh2 ) were polymorphic”
Claim · model-written summary
Polymorphic loci comprised 3.3%.
Not reportedTaxon
Verbatim
e0“percentage of polymorphic loci (P=3.3%)”
Claim · model-written summary
The mean number of alleles per locus was 1.04.
Not reportedTaxon
Verbatim
e0“mean number of alleles per locus (A=1.04)”
Claim · model-written summary
Intrapopulation diversity was 0.013.
Not reportedTaxon
Verbatim
e0“intrapopulation diversity (H S =0.013)”
Claim · model-written summary
Total genetic diversity was 0.07.
Not reportedTaxon
Verbatim
e0“Total genetic diversity (H T =0.07)”
Claim · model-written summary
Interpopulation diversity was 0.057.
Not reportedTaxon
Verbatim
e0“interpopulation diversity (D ST =0.057)”
Claim · model-written summary
Among-population diversity was an important contributor to total variability, with differentiation coefficient 0.821.
Not reportedTaxon
Verbatim
e0“coefficient of gene differentiation (G ST =0.821) indicated that diversity among populations was an important contributor to total variability”
Claim · model-written summary
Genetic similarity between populations was very high at 0.94.
- Taxon
- A. strigosa
Avena strigosae0 - Outcome
- Genetic similaritye0
- Direction
- very highe0
- Value
- 0.94e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Genetic similarity between A. strigosa populations was very high (I N =0.94)”
Claim · model-written summary
Cluster analysis did not show strongly differentiated ecotype groups.
- Outcome
- did not demonstrate strongly differentiated groupse0
Not reportedTaxon
Verbatim
e0“Cluster analysis did not demonstrate strongly differentiated groups among the ecotypes examined”