Induced Triploidy in Ayu <i>Plecoglossus altivelis</i>
نویسندگان
چکیده
منابع مشابه
Pathogenesis of experimentally induced bacterial cold water disease in ayu Plecoglossus altivelis.
Ayu Plecoglossus altivelis were experimentally infected with Flavobacterium psychrophilum, which is the causative agent of bacterial cold water disease (CWD). The fish infected by immersion usually died within an hour after they became moribund. The blood volume and haematocrit values of moribund fish were low, while those values of many infected fish that were not moribund were in the range of...
متن کاملRecurrent triploidy of maternal origin.
We report the occurrence of triploid preimplantation embryos following in vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI) in a woman with two previously-identified triploid conceptuses which spontaneously underwent fetal demise at 10 and 23 weeks' gestation. An error in maternal meiosis II is proposed as the most likely cause.
متن کاملTriploidy—Observations in 154 Diandric Cases
Hydatidiform moles (HMs) are abnormal human pregnancies with vesicular chorionic villi, imposing two clinical challenges; miscarriage and a risk of gestational trophoblastic neoplasia (GTN). The parental type of most HMs are either diandric diploid (PP) or diandric triploid (PPM). We consecutively collected 154 triploid or near-triploid samples from conceptuses with vesicular chorionic villi. W...
متن کاملHistorical effect in the territoriality of ayu fish.
Ayu fish form algae-feeding territories in a river during a non-breeding (growing) season. We build a cost-benefit theory to describe the breakdown and formation of territory. In the early stage of a growing season, all fish hold territories at low densities. Once all territory sites are occupied, excess fish become floaters. When fish density further increases, a phase transition occurs: all t...
متن کاملTriploidy with cyclopia and identical HLA alleles in the parents.
A 22-week pregnancy was terminated after discovery of serious echographic abnormalities. Fetal examination showed cyclopia, sacral meningocele, and syndactyly. The karyotype was 69,XXX. The parents had identical HLA alleles A1, A2, and Bw21. The mechanism of the triploidy was determined by chromosome marker analysis to be digyny. The association of triploidy with holoprosencephaly and the paren...
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ژورنال
عنوان ژورنال: NIPPON SUISAN GAKKAISHI
سال: 1985
ISSN: 0021-5392,1349-998X
DOI: 10.2331/suisan.51.503