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[Phylogeny of the A genomes of wild and cultivated wheat species].
Genetika. 2009 Nov; 45(11):1540-7.G

Abstract

Diploid species of the genus Triticum L. are its most ancient representatives and have the A genome, which was more recently inherited by all polyploid species. Studies of the phylogenetic relationships among diploid and polyploid wheat species help to identify the donors of elementary genomes and to examine the species specificity of genomes. In this study, molecular analysis of the variable sequences of three nuclear genes (Acc-1, Pgk-1, and Vrn-1) was performed for wild and cultivated wheat species, including both diploids and polyploids. Based on the sequence variations found in the genes, clear differences were observed among elementary genomes, but almost no polymorphism was detected within each genome in polyploids. At the same time, the regions of the three genes proved to be rather heterogeneous in the diploid species Triticum boeoticum Boiss., T. urartu Thum. ex Gandil., and T. monococcum L., thus representing mixed populations. A genome variant identical to the A genome of polyploid species was observed only in T. urartu. Species-specific molecular markers discriminating the diploid species were not found. Analysis of the inheritance of morphological characters also failed to identify a species-specific character for the three diploid wheat species apart from the hairy leaf blade type, described previously.

Authors

Golovnina KA
No affiliation info available
Kondratenko EIa
No affiliation info available
Blinov AG
No affiliation info available
Goncharov NP
No affiliation info available

MeSH

DiploidyGenes, PlantGenetic VariationPhylogenyPolyploidySpecies SpecificityTriticum

Pub Type(s)

English Abstract
Journal Article
Research Support, Non-U.S. Gov't

Language

rus

PubMed ID

20058800

Citation

Golovnina, K A., et al. "[Phylogeny of the a Genomes of Wild and Cultivated Wheat Species]." Genetika, vol. 45, no. 11, 2009, pp. 1540-7.
Golovnina KA, Kondratenko EIa, Blinov AG, et al. [Phylogeny of the A genomes of wild and cultivated wheat species]. Genetika. 2009;45(11):1540-7.
Golovnina, K. A., Kondratenko, E. I. a., Blinov, A. G., & Goncharov, N. P. (2009). [Phylogeny of the A genomes of wild and cultivated wheat species]. Genetika, 45(11), 1540-7.
Golovnina KA, et al. [Phylogeny of the a Genomes of Wild and Cultivated Wheat Species]. Genetika. 2009;45(11):1540-7. PubMed PMID: 20058800.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - [Phylogeny of the A genomes of wild and cultivated wheat species]. AU - Golovnina,K A, AU - Kondratenko,E Ia, AU - Blinov,A G, AU - Goncharov,N P, PY - 2010/1/12/entrez PY - 2010/1/12/pubmed PY - 2010/1/23/medline SP - 1540 EP - 7 JF - Genetika JO - Genetika VL - 45 IS - 11 N2 - Diploid species of the genus Triticum L. are its most ancient representatives and have the A genome, which was more recently inherited by all polyploid species. Studies of the phylogenetic relationships among diploid and polyploid wheat species help to identify the donors of elementary genomes and to examine the species specificity of genomes. In this study, molecular analysis of the variable sequences of three nuclear genes (Acc-1, Pgk-1, and Vrn-1) was performed for wild and cultivated wheat species, including both diploids and polyploids. Based on the sequence variations found in the genes, clear differences were observed among elementary genomes, but almost no polymorphism was detected within each genome in polyploids. At the same time, the regions of the three genes proved to be rather heterogeneous in the diploid species Triticum boeoticum Boiss., T. urartu Thum. ex Gandil., and T. monococcum L., thus representing mixed populations. A genome variant identical to the A genome of polyploid species was observed only in T. urartu. Species-specific molecular markers discriminating the diploid species were not found. Analysis of the inheritance of morphological characters also failed to identify a species-specific character for the three diploid wheat species apart from the hairy leaf blade type, described previously. SN - 0016-6758 UR - https://www.unboundmedicine.com/medline/citation/20058800/[Phylogeny_of_the_A_genomes_of_wild_and_cultivated_wheat_species]_ DB - PRIME DP - Unbound Medicine ER -