Cytological Studies in Psidium freidrichsthalianum Niedenzu
1977 年 42 巻 3-4 号 p. 395-400
詳細
1977 年 42 巻 3-4 号 p. 395-400
Psidium freidrichsthalianum Niedenzu is a diploid species having a chromosome number 2n=22. Quadrivalent, trivalent and univalent have been observed concomitant with bivalents. In addition to this dicentric bridges accompanied by framgent have been seen. It is presumably the consequence of inversion crossing over at the preceding diplotene. Beside these, other abnormalities such as precocious disjunction, unequal separation, lagging chromosomes, spindle fusion and stray chromosomes have been recorded. Pollen fertility is 50 per cent.
