Genetic relatedness and colony organization in a species complex of ponerine ants
Genetic relatedness and colony organization in a species complex of ponerine ants
复制标题
松蚁物种复合体的遗传相关性和群体组织
DOI：
10.1007/bf00302896
复制
发表时间：
1983
影响因子：
2.3
通讯作者：
P. S. Ward
中科院分区：
文献类型：
--
作者：
P. S. Ward
在澳大利亚的Rhytidoponera impress类群中，有两种不同类型的蚁群，它们在大多数物种中同域地出现：一雌一雌的蚁后群体（A型）和一雌一雌的或（通常）一夫多妻的工蚁繁殖群体（B型），其中1-15只（平均4.0只）交配的工蚁代替一只蚁后。这两种群体都产生有翼的雄性，A型群体也养育许多建立群体的有翼蚁后。B型蜂群很少产生蚁后，通常通过蜂群分裂繁殖（用一个或多个交配的工蜂出芽产生子蜂群）。在Rhytidoponera confusaandchalybaea有没有证据的生殖隔离之间的两个殖民地类型：等位基因频率在几个多态性酶基因座基本上是相同的，在同域型A和类型B colonies，尽管显着的遗传分化之间的地理上不同的人口和species.Allozyme标记证实，女王在A型殖民地交配只有一次，是所有的殖民地成员，包括男性的母亲。在蜂王群体中，工蜂（w）和雄蜂（m）之间的亲缘关系的回归估计分别为：bw.w = 0.70和bm.w = 0.20。B型菌落的相应估计值（体重<0.30，bm. w <0.16）揭示了较低水平的相关性。同居交配的工蜂通常关系密切，并大致平等地分享生殖产出。未受精的产蛋工蜂在大约四分之一的B型蜂群中被发现。A型蜂群中的工蜂在蜂群干扰期间比B型蜂群中的非生殖工蜂表现得更具有攻击性。A型蜂群的蜂群大小、工蜂大小和雄性体重显著大于B型蜂群。尽管有证据表明，工人的利他主义和人体工程学的效率更好地发展在A型殖民地，内部和种间比较genusRhytidoponeraindicate的选择因素有利于工人生殖殖民地在干旱环境中的queenright殖民地，并在斑杂的mesic栖息地。
In Australian ants of theRhytidoponera impressagroup there are two distinct types of colonies which occur sympatrically in most species: monogynous, queenright colonies (Type A), and monogynous or (usually) polygynous worker-reproductive colonies (Type B) in which 1–15 (mean 4.0) mated workers occur in lieu of a queen.Both colonies produce winged males, and Type A colonies also rear numerous colony-founding alate queens. Type B colonies seldom produce queens and usually reproduce by colony fission (budding off daughter colonies with one or more mated workers). InRhytidoponera confusaandchalybaeathere is no evidence of reproductive isolation between the two colony types: allele frequencies at several polymorphic enzyme loci are essentially identical in sympatric Type A and Type B colonies, despite marked genetic differentiation among geographically distinct populations and between species.Allozyme markers confirm that the queen in Type A colonies mates only once and is the mother of all colony members, including males. Regression estimates of relatedness among workers (w) and males (m) in queenright colonies givebw.w≈0.70 andbm.w≈0.20. Corresponding estimates for Type B colonies (bw.w≈0.30,bm.w≈0.16) reveal lower levels of relatedness. Cohabiting mated workers are often closely related, and share reproductive output approximately equally. Uninseminated laying workers are found in about one-quarter of Type B colonies.Workers in Type A colonies behave more aggressively during colony disturbance than non-reproductive workers in Type B colonies. Colony size, worker size, and male weights are significantly greater in Type A than Type B colonies. Despite evidence that worker altruism and ergonomic efficiency are better developed in Type A colonies, intra- and inter-specific comparisons within the genusRhytidoponeraindicate selective factors favoring worker-reproductive colonies over queenright colonies in xeric environments and in patchy mesic habitats.