Genetic Diversity in Pioneer Ants: The Cardiocondyla shuckardi Group

IF 0.7 4区 农林科学 Q4 ENTOMOLOGY Sociobiology Pub Date : 2023-09-28 DOI:10.13102/sociobiology.v70i3.10098
Jürgen Heinze, Peter G. Hawkes
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Abstract

The myrmicine ant genus Cardiocondyla consists of around 80 species of small, inconspicuous ants, which live mainly in subtropical and tropical Africa, Eurasia, and Australia. Several species have been accidentally introduced to America and have also invaded numerous originally ant-free islands around the world. The diversity of life histories in this genus, with lethally fighting wingless males, dominance hierarchies among queens, and considerable variation in the sociogenetic organization of colonies across species, has made it an interesting model to investigate the evolution and behavioral ecology of reproductive strategies. Taxa of the African Cardiocondyla shuckardi group are of particular interest, as in a phylogeny they lie between facultatively polygynous species with fatal male competition and monogynous species with mutually tolerant males. Studies on male behavior and sociogenetics in C. “venustula,” a widespread member of the C. shuckardi group, showed that males defend small territories inside their subterraneous nests. At the same time, they revealed a surprisingly large variability in mtDNA haplotypes both within and between populations in South Africa, Angola, and Côte d’Ivoire. As the different lineages are very similar in morphology and nuclear markers, more research is needed to clarify the very confused taxonomic situation in this fascinating group of ants.
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先锋蚂蚁的遗传多样性:心髁蚁群
金蚁属(Cardiocondyla)由大约80种不显眼的小蚂蚁组成,主要生活在亚热带和热带非洲、欧亚大陆和澳大利亚。一些物种被意外地引入美洲,并入侵了世界上许多原本没有蚂蚁的岛屿。这个属的生命史的多样性,有致命的无翅雄性,女王之间的统治等级,以及种群间社会遗传组织的相当大的差异,使其成为研究生殖策略进化和行为生态学的一个有趣的模型。非洲心髁蝗群的分类群特别令人感兴趣,因为在系统发育中,它们位于具有致命雄性竞争的兼性一夫多妻物种和具有相互容忍雄性的一夫一妻物种之间。对C.“venustula”(一种分布广泛的C. shuckardi群体成员)的雄性行为和社会遗传学的研究表明,雄性在它们的地下巢穴中保卫小块领土。与此同时,他们揭示了南非、安哥拉和Côte科特迪瓦人群内部和人群之间mtDNA单倍型的惊人差异。由于不同的谱系在形态和核标记上非常相似,需要更多的研究来澄清这一令人着迷的蚂蚁群体中非常混乱的分类情况。
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来源期刊
Sociobiology
Sociobiology 生物-昆虫学
CiteScore
1.60
自引率
11.10%
发文量
28
审稿时长
3 months
期刊介绍: SOCIOBIOLOGY publishes high quality articles that significantly contribute to the knowledge of Entomology, with emphasis on social insects. Articles previously submitted to other journals are not accepted. SOCIOBIOLOGY publishes original research papers and invited review articles on all aspects related to the biology, evolution and systematics of social and pre-social insects (Ants, Termites, Bees and Wasps). The journal is currently expanding its scope to incorporate the publication of articles dealing with other arthropods that exhibit sociality. Articles may cover a range of subjects such as ecology, ethology, morphology, population genetics, physiology, toxicology, reproduction, sociobiology, caste differentiation as well as economic impact and pest management.
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