Fireflies with or without prespermatophores: Evolutionary origins and life-history consequences.
Fireflies with or without prespermatophores: Evolutionary origins and life-history consequences.
复制标题
DOI：
10.1046/j.1343-8786.2003.00003.x
复制
发表时间：
2003-03-25
影响因子：
0.9
通讯作者：
Suzuki, Hirobumi
中科院分区：
文献类型：
--
作者：
Hayashi, Fumio;Suzuki, Hirobumi
在交配过程中，一些雄性北美萤火虫在配对的生殖附属腺中从前精子囊中产生精囊。其他种类的萤火虫既没有前精囊也没有精囊。为了建立一种精子包囊发生的模式，我们对日本10属20种萤火虫的雄性内部生殖系统进行了精子包囊存在或不存在的研究。来自7个属的12种产生了前精子细胞，而来自3个属的8种没有产生。基于线粒体16S核糖体DNA序列的日本萤火虫分子系统发育叠加分析表明，基础类群为前精团产生者。前精子细胞似乎在两个不同的谱系中消失了。没有前精子细胞的物种的特点是前翅和后翅都退化，雌性身体巨大。
During mating, some male North American fireflies produce spermatophores from prespermatophores in their paired reproductive accessory glands. Other species of fireflies have neither prespermatophores nor spermatophores. To establish a pattern of spermatophore occurrence across firefly species, we examined the male internal reproductive system in 20 Japanese species belonging to 10 genera for the presence or absence of prespermatophores. Twelve species from seven genera produced prespermatophores, while eight species from three genera did not. Superimposed on a molecular phylogeny of Japanese fireflies based on mitochondrial 16S ribosomal DNA sequences, the basal group was prespermatophore producers. Prespermatophores appear to have been lost in two different lineages. Species without prespermatophores are characterized by degeneration of both the forewings and hindwings, and by body gigantism in females.