PARTHENOGENESIS IN CARCINONEMERTES SPP. (NEMERTEA: HOPLONEMERTEA).
PARTHENOGENESIS IN CARCINONEMERTES SPP. (NEMERTEA: HOPLONEMERTEA).
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Carcinonemertes SPP 中的单性生殖。
DOI：
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发表时间：
1986
期刊：
影响因子：
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通讯作者：
P. Roe
中科院分区：
文献类型：
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作者：
P. Roe
当 Carcinonemertes spp 的幼体。从雄性蟹身上取出并在实验室饲养，获得 50:50 的性别比例。孤立的雌性产生典型的癌线虫卵串，只不过胚胎是单倍体，每个细胞大约有 13 条染色体。幼虫至少发育至孵化，有些确实孵化。如此饲养的 146 只雌性几乎全部产下卵串。所有单独饲养的雌性幼虫都是单倍体，而与雄性一起饲养的雌性幼虫是二倍体。来自美国西海岸物种 Carcinonemertes epialti 和 C. errans 以及来自三个宿主——Cancer magister、C. Antennarius 和 Hemigrapsus oregonensis 的雌性通过孤雌生殖产生了这些单倍体幼虫。
When juveniles of Carcinonemertes spp. are removed from male crabs and raised in the laboratory, a 50:50 sex ratio is obtained. Isolated females produce egg strings typical of Carcinonemertes, except that the embryos are haploid, with about 13 chromosomes per cell. Larvae develop at least to hatching, and some do hatch. Nearly all of the 146 females so raised produced egg strings. Larvae of all females raised in isolation were haploid while larvae of females put with males were diploid. Females from both U.S. west coast species, Carcinonemertes epialti and C. errans, and from three hosts, Cancer magister, C. antennarius, and Hemigrapsus oregonensis, produced these haploid larvae by parthenogenesis.