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Mechanism of Male Sterility in a Clone of Orchardgrass ( Dactylis glomerata L.) 1
Author(s) -
Filion W. G.,
Christie B. R.
Publication year - 1966
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1966.0011183x000600040015x
Subject(s) - dactylis glomerata , biology , microspore , stamen , tapetum , meiosis , pollen , sterility , ploidy , botany , clone (java method) , chromosome , genetics , poaceae , dna , gene
Cytological and histological studies were carried out on a male‐sterile clone, OD‐1, of Dactylis glomerata L. The chromosome number and meiotic chromosome behavior of this clone were normal for the species. During microsporogenesis, degeneration of some sporogeneous tissue was observed at the initial stages of meiosis. Later, there was a very rapid degeneration of the tapetum and microspores. At anthesis, there was no evidence of pollen. The cell layers of the anther wall did not develop characterisfically, resulting in a small nondehiscent anther.