PREMEIOTIC CHROMOSOME DOUBLING AFTER GENOME ELIMINATION DURING SPERMATOGENESIS OF THE SPECIES HYBRID RANA-ESCULENTA
PREMEIOTIC CHROMOSOME DOUBLING AFTER GENOME ELIMINATION DURING SPERMATOGENESIS OF THE SPECIES HYBRID RANA-ESCULENTA
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DOI：
10.1007/bf00273874
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发表时间：
1982-01-01
影响因子：
5.4
通讯作者：
GREILHUBER, J
中科院分区：
文献类型：
--
作者：
HEPPICH, S;TUNNER, HG;GREILHUBER, J
杂种发生种R. esculenta（R.里迪什塔时报R. lessonae）之前是R. lessonae基因组和随后的其余R. ridiora基因组，使得只有ridiora染色体进入准正常减数分裂，并且只有ridiora配子形成。体细胞和性腺组织之间基因组特异性着丝粒荧光和电泳模式的差异证明了这一点。
Gamete production in the hybridogenetic species hybrid R. esculenta (R. ridibunda .times. R. lessonae) is preceded by a premeiotic elimination of the R. lessonae genome and subsequent duplication of the remaining R. ridibunda genome, so that only ridibunda chromosomes enter a quasi-normal meiosis, and only ridibunda gametes are formed. This is demonstrated by differences in genome specific centromere fluorescence and electrophoretic patterns between somatic and gonadal tissue.