Open AccessDNA content of presumed aneuploid spermatozoa
Author(s) -
GLEDHILL BARTON L.,
GUSTAVSSON INGEMAR,
HENRICSON BENGT
Publication year - 1970
Publication title -
hereditas
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.819
H-Index - 50
eISSN - 1601-5223
pISSN - 0018-0661
DOI - 10.1111/j.1601-5223.1970.tb02328.x
Subject(s) - biology , aneuploidy , chromosomal translocation , andrology , ploidy , dna , zoology , fertility , genetics , chromosome , gene , medicine , population , demography , sociology
The DNA content and total dry mass of single spermatozoa were analyzed in two boars and five bulls. One of the boars was normal and the other was heterozygous for a balanced translocation causing a fertility reduction. Two of the bulls were heterozygous for a translocation of the centric fusion type; one was homozygous and two had normal karyo types. The mean DNA content and the mean total dry mass not only varied significantly between individual boars and between individual bulls, but also between the two ejaculates collected from each. The variances of the means showed no correlation to chromosomal constitution. The results indicate that measurements of the DNA content and total dry mass of ejaculated spermatozoa cannot be used to identify aneuploidy of the types presumed in this case.