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Publication Date
1977
Description
Chemical mutagenics were found to induce male sterility in M1 of Dactylis glomerata L., this character being transmitted in the following generations under conditions of open pollination and pair matings. The respective segregations in the families obtained from test crossings, open pollination, and pair matings of sterile plants, and the existence of sterility fixers allow to suppose that in M1, M2, and M3 the sterile forms have cytoplasmic male sterility and are represented by recessive homozygotes with sterile cytoplasm. The study of the meiosis of the male-sterile forms induced by chemical mutagenics has revealed that disturbances in the course of meiosis can be observed already during early stages in the diakinesis, metaphases I and II, and telophases I and II. Tetrads are not formed. In the plants under study, meiosis follows a course not being typical of most crops with cytoplasmic male sterility.
Citation
Kuleshov, Grigori; Kremnina, Aelita; and Korovina, Valentina, "Particularities regarding the manifestation of cytoplasmic male sterility in Dactylis glomerata L." (1977). IGC Proceedings (1977-2023). 40.
(URL: https://uknowledge.uky.edu/igc/1977/sess2/40)
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Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Particularities regarding the manifestation of cytoplasmic male sterility in Dactylis glomerata L.
Chemical mutagenics were found to induce male sterility in M1 of Dactylis glomerata L., this character being transmitted in the following generations under conditions of open pollination and pair matings. The respective segregations in the families obtained from test crossings, open pollination, and pair matings of sterile plants, and the existence of sterility fixers allow to suppose that in M1, M2, and M3 the sterile forms have cytoplasmic male sterility and are represented by recessive homozygotes with sterile cytoplasm. The study of the meiosis of the male-sterile forms induced by chemical mutagenics has revealed that disturbances in the course of meiosis can be observed already during early stages in the diakinesis, metaphases I and II, and telophases I and II. Tetrads are not formed. In the plants under study, meiosis follows a course not being typical of most crops with cytoplasmic male sterility.
