Combining ability of interspecific oat matings (Avena sativa x Avena sterilis)

1983 ◽  
Author(s):  
Darrell James Cox
Keyword(s):  
Avena Sativa ◽  
Combining Ability ◽  
Avena Sterilis

scholarly journals Description of genetic polymorphism and cytological stability of Avena sativa L., Avena sterilis L. and their interspecies hybrids

2018 ◽  
Vol 23 ◽  
pp. 131-136
Author(s):  
Y. A. Sycheva ◽  
N. I. Drobot ◽  
Y. B. Bondarevich ◽  
L. A. Solovey ◽  
S. P. Khaletsky ◽  
...  
Keyword(s):  
Genetic Polymorphism ◽  
Ssr Markers ◽  
Avena Sativa ◽  
Genetic Material ◽  
Molecular Genetic Analysis ◽  
Avena Sterilis ◽  
Interspecies Hybrids ◽  
Ssr Loci ◽  
High Level ◽  
Number Of Cells

Aim. A study of cytological stability and genetic polymorphism of SSR loci in Avena sativa L., Avena sterilis L. and their interspecies hybrids. Methods. Interspecific hybridization in combination with cytological and molecular-genetic analysis. Results. The genetic polymorphism of six SSR loci of 15 Avena sativa L. varieties, 12 Avena sterilis L. lines and their interspecies hybrids was studied. Highly informative (PIC from 0.57 to 0.89) SSR markers that can be used to differentiate genetically related genotypes of oats are revealed. The results of cytological analysis showed a high level of bivalent pairing at meiotic metaphase I (97.0 to 99.86 %) in A. sativa × A. sterilis hybrids, as well as the presence of a significant number of cells with bridges at the anaphase I stage of meiosis. Conclusions. The high level of bivalent chromosome pairing and the identification of forms with a high meiotic index indicate the possibility of creating cytologically stable hybrids of A. sativa × A. sterilis. The presence of a significant number of cells with bridges at the anaphase I stage may serve as an indirect confirmation of chromatin exchange between the parental species, which creates the prerequisites for the inclusion in the genome of oats alien genetic material in the form of translocations. Keywords: Avena sativa L., Avena sterilis L., cross-species hybridization, cytological stability, SSR-markers.

scholarly journals Herança da estatura de planta e do comprimento da panícula principal no cruzamento entre Avena Sativa L. e Avena Sterilis L.

1999 ◽  
Vol 34 (1) ◽  
pp. 77-82 ◽  
Author(s):  
Márcio Paim Mariot ◽  
Maria Jane Cruz de Melo Sereno ◽  
Luiz Carlos Federizzi ◽  
Fernando Irajá Félix de Carvalho
Keyword(s):  
Avena Sativa ◽  
Avena Sterilis

A espécie selvagem Avena sterilis L. tem sido amplamente utilizada para cruzamento com aveia cultivada, pela alta afinidade existente entre ambas, o que possibilita um aumento na variabilidade genética e transferência de genes de importância agronômica. Entretanto, caracteres indesejáveis, como a alta estatura e um maior comprimento de panícula, podem ser transferidos à progênie. Nesse sentido, com o objetivo de avaliar a variabilidade genética, bem como a herança em cruzamentos entre Avena sativa L. e Avena sterilis L., foram mensurados os caracteres estatura de planta e comprimento da panícula principal. As variâncias fenotípicas e genéticas foram altas e as variâncias de ambiente foram baixas, proporcionando uma alta herdabilidade no sentido amplo. O efeito gênico de aditividade foi o mais importante para explicar a variação genética em ambos os caracteres.

Inheritance and Combining Ability for Oil Content in Oats ( Avena sativa L.) 1

Crop Science ◽  
1974 ◽  
Vol 14 (1) ◽  
pp. 67-69 ◽  
Author(s):  
C. M. Brown ◽  
Andrew N. Aryeetey ◽  
S. N. Dubey
Keyword(s):  
Avena Sativa ◽  
Combining Ability ◽  
Oil Content

scholarly journals Anther culture properties of oat x wild red oat progenies and a search for RAPD markers associated with anther culture ability

2008 ◽  
Vol 13 (1-2) ◽  
pp. 151 ◽  
Author(s):  
E. KIVIHARJU ◽  
J. LAURILA ◽  
M. LEHTONEN
Keyword(s):  
Anther Culture ◽  
Avena Sativa ◽  
Rapd Markers ◽  
Random Amplified Polymorphic Dna ◽  
Backcross Progeny ◽  
Avena Sterilis ◽  
Albino Plant ◽  
Parental Lines ◽  
Anther Culture Response ◽  
Genotype Effects

A study was carried out to improve anther culture ability of the non-responsive cultivated oat, Avena sativa L. cv. Puhti by introgressing favourable alleles from the responsive wild red oat, Avena sterilis L. acc. CAV 2648. Anther culture ability of these parental lines and F2 progenies of their cross and two backcrosses was tested. Genotype effects were significant on all anther culture traits measured. The number of anther culture derived embryo-like structures was highest in acc. CAV 2648, and the number of green regenerants from the Puhti × CAV 2648 progeny. Anther culture response was greatly reduced in backcross progeny and was least in cv. Puhti. Random amplified polymorphic DNA (RAPD) was used to test for marker associations with oat anther culture traits in a population of 38 F2 progenies. Two RAPD markers were putatively associated with improved production of green regenerants (one derived from acc. CAV 2648 and the other from cv. Puhti). One marker putatively associated with decreased albino plant regeneration (derived from acc. CAV 2648). These markers might be useful for selecting alleles for better anther culture ability among progeny of planned crosses. In addition, three markers, derived from acc. CAV 2648, were putatively associated with decreased anther culture response rates.;

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