1) all-triploid
全三倍体
1.
Cultchless all-triploid Pacific oyster seeds were produced in a large scale by crossing tetraploid males with diploid females.
本文利用四倍体太平洋牡蛎雄贝与二倍体雌贝杂交生产出的全三倍体牡蛎,幼虫经常规方法培育至60%出现眼点幼虫时,投放聚乙烯塑料纸、废旧筛绢网和聚乙烯波纹板作附着基,经过附着变态后,当达到2~3 mm时,可脱基生产单体牡蛎,也可中间培育至10 mm边脱基边出售到养殖单位进行养殖,采用此法生产的单体牡蛎方法简便,成本低,脱基致残率极低,是一种生产单体牡蛎好方法之一。
2) all-female diploid
全雌三倍
1.
4 kg for females and newly hatched larvae were obtained by induction of all-female diploid to get the all-female triploid,which were obtained from the fertilized eggs treated by heat shock,to sex reversed males(Pseudo-milter) by androgens with 80% of successful rate.
2 kg),采用人工诱导雌核发育技术灭活金鳟精子,对受精卵进行热休克处理后正常孵化,获得初孵仔鱼;再用雄性激素诱导全雌二倍体,得到性逆转雄鱼(伪雄鱼);培育至性成熟后进行人工繁殖,采用热休克法对受精卵进行处理获得全雌三倍体鱼类。
3) interploid 3n
倍间三倍体
1.
Morphological differences of erythrocyte in autotetraploid,interploid 3n of blunt snout bream,Megalobrama amblycephala;
团头鲂同源四倍体、倍间三倍体与二倍体红细胞的形态特征比较
4) triploids
三倍体
1.
Obtaining triploids by high and low temperature treating female flower buds of white poplar.;
极端温度处理白杨雌花芽培育三倍体植株的研究
2.
In the progeny of the latter cross, tetraploids and triploids were observed.
通过染色体计数和流式细胞仪分析,在F2(♀)×红鲫(♂)后代中获得了四倍体、三倍体、二倍体鱼;在F2(♀)×四倍体鲫鲤(♂)后代中获得了四倍体和三倍体鱼。
3.
The results showed that there were the 56 triploids(70.
探讨多倍体牡蛎的遗传基础,通过染色体计数法对2龄杂交三倍体太平洋牡蛎(Crassostrea gigas)群体的染色体数目组成进行了分析,发现在80个具良好中期分裂相的牡蛎中,有56个三倍体(70。
5) triploid fish
三倍体鱼
6) triploid
[英]['triplɔid] [美]['trɪplɔɪd]
三倍体
1.
Embryonic development of gynogenetic diploid and triploid Japanese flounder Paralichthys olivaceus;
牙鲆单倍体、三倍体、雌核发育二倍体和普通二倍体胚胎发育的比较
2.
Comparative study on the spermary histological structure of triploid and diploid Carassius auratus gibelio;
三倍体和二倍体银鲫精巢组织学的比较
3.
Analysis of nutrition in young triploid loach Misgurnus anguillicaudatus;
三倍体泥鳅幼鱼的营养分析
补充资料:三倍体综合征和三倍体与二倍体混合体综合征
三倍体综合征和三倍体与二倍体混合体综合征
三倍体指增加一组额外的染色体,约占妊娠的2%。额外的染色体多来自父亲,66%由于两次受精,24%由于所受的精子是二倍体,10%由于受精的卵是二倍体。胎儿大都流产,约为染色体异常自然流产的20%。孕妇可以伴发不同程度的妊高征,胎儿由于胎盘囊性变或细胞遗传学异常而死亡,只有3%的69,XXY存活。偶有三倍体婴儿在妊娠28周后出生,二倍体与三倍体混合体综合征更少见,均有严重的发育缺陷。表现:胎盘大有囊性变。骨骼方面混合体综合征者骨骼生长不对称。颅骨发育不良,后囟门大,眼距过宽,虹膜缺损,甚至小眼。鼻梁低,耳畸形,口颌小。第3、4指并指,通贯掌纹,马蹄内翻畸形足。先天性心脏病(心房和心室间隔缺损)。男性尿道下裂,阴茎小,隐睾,睾丸间质细胞增生。脑异常。肾上腺发育不全,肾畸形。此类综合征胎体大多流产,出生后也会早期死亡。存活的二倍体与三倍体混合体一般都有精神运动障碍。
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参考词条