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O. Renner (1936)
Zur Kenntnis der nichtmendelnden Buntheit der Laubblätter 1 ). 1)Mit Unterstützung der Deutschen Forschungsgemeinschaft (Notgemeinschaft der Deutschen Wissenschaft) ausgeführte UntersuchungenFlora oder Allgemeine Botanische Zeitung, 130
B. Johnson (1975)
IDENTIFICATION OF THE APPARENT B-GENOME DONOR OF WHEATCanadian journal of genetics and cytology, 17
P. Michaelis (1935)
Entwicklungsgeschichtlich-genetische Untersuchungen an EpilobiumPlanta, 23
P. Michaelis (1954)
Cytoplasmic inheritance in Epilobium and its theoretical significance.Advances in genetics, 6
H. Dhaliwal, B. Johnson (1976)
ANTHER MORPHOLOGY AND THE ORIGIN OF THE TETRAPLOID WHEATSAmerican Journal of Botany, 63
B. Johnson, H. Dhaliwal (1976)
REPRODUCTIVE ISOLATION OF TRITICUM BOEOTICUM AND TRITICUM URARTU AND THE ORIGIN OF THE TETRAPLOID WHEATSAmerican Journal of Botany, 63
122 49 49 6 6 Dr. H. S. Dhaliwal Department of Plant Sciences University of California 92502 Riverside CA Friedrich-Miescher-Institut P.O. Box 273 Ch-4002 Basel Switzerland Summary The boeoticum (♀) X urartu (♂) F 1 hybrids gave small, plump and viable seeds while the reciprocal crosses with T. urartu as the female parent had long, shrivelled and non-viable seeds. Reciprocal nuclear-substitution lines comprising the nucleus of one species into the cytoplasm of the other were developed through repeated backcrossing and were crossed as female parents with respective non-recurrent parents (the cytoplasm donors). The difference between the reciprocal crosses was presumably attributable to different boeoticum urartu genomic ratios in the triploid endosperm rather than to the cytoplasmic difference between the diploid wheats. The endosperm with two doses of the boeoticum and one of the urartu genome resulted in small, plump and viable seed while the endosperm of the reciprocal crosses with two doses of the urartu and one of the boeoticum genome led to large but shrivelled and non-viable seeds irrespective of the cytoplasmic type. One dose of the paternal genome in the triploid endosperm is probably not expressed in the presence of two doses of the maternal genome thereby leading to the difference between the reciprocal crosses. The results reported here indicate that difference between reciprocal crosses may not always be attributed to cytoplasmic difference between the parental species.
TAG Theoretical and Applied Genetics – Springer Journals
Published: Nov 1, 1977
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