具有三个父系贡献的四倍体孕体。
Tetraploid conceptus with three paternal contributions.
作者信息
Sheppard D M, Fisher R A, Lawler S D, Povey S
出版信息
Hum Genet. 1982;62(4):371-4. doi: 10.1007/BF00304561.
PMID:7166315
Abstract
Cytogenetic and biochemical polymorphisms have been used to determine the origin of a tetraploid conceptus. Genetic polymorphisms were found in chromosomes 1, 6, 9, 15, 16, 22 and the sex chromosomes. The conceptus was found to have one maternal and three paternal contributions, indicating an origin other than a failure of cytokinesis at the first cleavage division of the zygote. The results presented are in favour of a trispermic origin of the conceptus.
摘要
细胞遗传学和生化多态性已被用于确定四倍体胚胎的起源。在1号、6号、9号、15号、16号、22号染色体以及性染色体中发现了遗传多态性。该胚胎被发现有一份母源贡献和三份父源贡献，这表明其起源并非合子第一次卵裂时胞质分裂失败所致。所呈现的结果支持该胚胎的三精受精起源。
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