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CYTOLOGICAL EVIDENCE OF NATURAL INTERTRIBAL HYBRIDIZATION OF TRIPSACUM AND MANISURIS
Author(s) -
Prywer Czeslawa
Publication year - 1965
Publication title -
american journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.218
H-Index - 151
eISSN - 1537-2197
pISSN - 0002-9122
DOI - 10.1002/j.1537-2197.1965.tb06773.x
Subject(s) - biology , meiosis , gamete , genome , botany , genetics , gene , sperm
A plant with the morphological aspect of Tripsacum zopilotense, collected at Acahuizotla, State of Guerrero, showed a series of irregularities during meiosis. In diakinesis, 18 bivalents and 9 univalents were observed. In the following stages the univalents stayed separated, like a genome with very different chromosomes. The study of irregularities during meiosis suggests that the plant could be a hybrid which originated from a fusion of an unreduced gamete of T. zopilotense having 36 chromosomes with a reduced gamete of Manisuris cylindrica having 9 chromosomes.