在实验室条件下,培养了一个采自青海尕海湖的孤雌生殖卤虫(Artemia parthenogenetica of Gahai)的克隆。该克隆包括3578个雌体和103个罕见雄体,在这些罕见雄体中发现二例雌雄嵌合体。其外部形态均表现为雄性,即具有正常的执握肢和外交接...在实验室条件下,培养了一个采自青海尕海湖的孤雌生殖卤虫(Artemia parthenogenetica of Gahai)的克隆。该克隆包括3578个雌体和103个罕见雄体,在这些罕见雄体中发现二例雌雄嵌合体。其外部形态均表现为雄性,即具有正常的执握肢和外交接器,但在其体左侧出现了正常形态特征的卵细胞,表明在这两个外表为雄性的卤虫中有卵巢存在,为雌雄嵌合体。展开更多
The rare males occurring in low numbers in populations of Artemia parthenogenetica may arise from the fusion of two haploid X cells after the second meiotic division. There is no unanimous overview concerning the role...The rare males occurring in low numbers in populations of Artemia parthenogenetica may arise from the fusion of two haploid X cells after the second meiotic division. There is no unanimous overview concerning the role and ability of these asexually produced males to hybridize with bisexual females. Bowen et al. first succeeded in crossing 4 rare males originated from India, Japan and France with females of A. franciscana and A. urmiana. In that study, fertilization was confirmed by Mendelian segregation patterns of展开更多
文摘在实验室条件下,培养了一个采自青海尕海湖的孤雌生殖卤虫(Artemia parthenogenetica of Gahai)的克隆。该克隆包括3578个雌体和103个罕见雄体,在这些罕见雄体中发现二例雌雄嵌合体。其外部形态均表现为雄性,即具有正常的执握肢和外交接器,但在其体左侧出现了正常形态特征的卵细胞,表明在这两个外表为雄性的卤虫中有卵巢存在,为雌雄嵌合体。
基金the National Natural Science Foundation of China.
文摘The rare males occurring in low numbers in populations of Artemia parthenogenetica may arise from the fusion of two haploid X cells after the second meiotic division. There is no unanimous overview concerning the role and ability of these asexually produced males to hybridize with bisexual females. Bowen et al. first succeeded in crossing 4 rare males originated from India, Japan and France with females of A. franciscana and A. urmiana. In that study, fertilization was confirmed by Mendelian segregation patterns of
