Premium
CHROMOSOMES OF THE CHARACEAE OF THE WOODS HOLE (MASSACHUSETTS) REGION
Author(s) -
Tindall Donald R.,
Sawa Takashi
Publication year - 1964
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.1537-2197.1964.tb06722.x
Subject(s) - nitella , biology , polyploid , chara , ploidy , botany , chromosome , chromosome number , evolutionary biology , karyotype , genetics , gene
Cytological observations were made on material from 35 collections taken from 21 populations representing 10 species and 2 genera. Haploid chromosome numbers observed in Nitella were 9, 12, 18, 18, 18, and 18 + 36. Those observed in Chara were 14, 28, 28, and 42. Several data indicate that Nitella transilis is an established polyploid of N. tenuissima. The evaluation of chromosome numbers in respect to hybridization, polyploidy, and sexuality in haplobiontic plants is discussed.