Biological Peculiarities of F1 Generation of Hybrids of Two Georgian Endemic Species Aquilegia colchica Kem.-Nath. and Aquilegia gegica Jabr.-Kolak.
2021
Morphological features of the F1 generation obtained by crossing two Georgian Endemic species Aquilegia colchica Kem.-Nath. and Aquilegia gegica Jabr.-Kolak., the process of microsporogenesis and gametogenesis, viability and germination capacity of hybrid seeds have been studied. Research has shown that the parental forms are genetically closely related species that is proved by: 1) The same number of chromosomes (2n=14) and high degree of homology; 2) The normal course of the process of microsporogenesis, meiosis; In both native and hybrid forms, the process of microsporogenesis and gametogenesis passes within the norm. 3) High fertility of hybrid seeds and high percentage of germination. A hybrid plant combines the traits of both parents. Besides similarities, a number of different features were revealed (the stamens are strongly stuck out from the perianth; heterophily and a short pre-regenerative period). The studies estimated that in the process of ontogeny, the hybrid plants have rapid pre-regenerative phase and are capable to produce fertile offspring. © 2021 Bull. Georg. Natl. Acad. Sci.
Показать больше [+] Меньше [-]