Unlocking the Genetic Diversity and Population Structure of a Wild Gene Source of Wheat, Aegilops biuncialis Vis., and Its Relationship With the Heading Time

0518854 - ÚEB 2020 RIV CH eng J - Článek v odborném periodiku
Ivanizs, L. - Monostori, I. - Farkas, A. - Megyeri, M. - Mikó, P. - Türkösi, E. - Gaál, E. - Lenykó-Thegze, A. - Szőke-Pázsi, K. - Szakács, É. - Darkó, É. - Kiss, T. - Kilian, A. - Molnár, István
Unlocking the Genetic Diversity and Population Structure of a Wild Gene Source of Wheat, Aegilops biuncialis Vis., and Its Relationship With the Heading Time.
Frontiers in Plant Science. Roč. 10, NOV 22 (2019), č. článku 1531. ISSN 1664-462X. E-ISSN 1664-462X
Grant CEP: GA MŠMT(CZ) EF16_019/0000827
Institucionální podpora: RVO:61389030
Klíčová slova: Aegilops biuncialis * DArTseq markers * genetic diversity * heading time * hierarchical clustering * population structure
Obor OECD: Biochemistry and molecular biology
Impakt faktor: 4.402, rok: 2019
Způsob publikování: Open access
http://dx.doi.org/10.3389/fpls.2019.01531

Understanding the genetic diversity of Aegilops biuncialis, a valuable source of agronomical useful genes, may significantly facilitate the introgression breeding of wheat. The genetic diversity and population structure of 86 Ae. biuncialis genotypes were investigated by 32700 DArT markers with the simultaneous application of three statistical methods— neighbor-joining clustering, Principal Coordinate Analysis, and the Bayesian approach to classification. The collection of Ae. biuncialis accessions was divided into five groups that correlated well with their eco-geographic habitat: A (North Africa), B (mainly from Balkans), C (Kosovo and Near East), D (Turkey, Crimea, and Peloponnese), and E (Azerbaijan and the Levant region). The diversity between the Ae. biuncialis accessions for a phenological trait (heading time), which is of decisive importance in the adaptation of plants to different eco-geographical environments, was studied over 3 years. A comparison of the intraspecific variation in the heading time trait by means of analysis of variance and principal component analysis revealed four phenotypic categories showing association with the genetic structure and geographic distribution, except for minor differences. The detailed exploration of genetic and phenologic divergence provides an insight into the adaptation capacity of Ae. biuncialis, identifying promising genotypes that could be utilized for wheat improvement.
Trvalý link: http://hdl.handle.net/11104/0304172