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Chromosome Numbers and Microsporogenesis in Dallisgrass Paspalum Dilatatum Poir 1
Author(s) -
Bashaw E. C.,
Forbes Ian
Publication year - 1958
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1958.00021962005000080006x
Subject(s) - anaphase , meiosis , biology , paspalum , chromosome , botany , genetics , gene
Synopsis The common type of Paspalum dilatatum and a closely related yellow‐anthered type had 50 chromosomes. Meiosis I was characterized by 20 bivalents and 10 univalents which lagged at anaphase I. A semi‐prostrate, purple‐anthered type had 40 chromosomes and extreme meiotic irregularity, frequently having 20 laggards at anaphase I. A yellow‐anthered, erect type with pubescent spikelets had 40 chromosomes and regular meiotic behavior.