Speciation in Aronia is complex based on Amplified Fragment Length Polymorphism (AFLP) and ploidy analysis of 132, mostly wild, accessions. There are four species of Aronia and seven taxonomic groups comprised of species by ploidy combinations. A. melanocarpa can be diploid or tetraploid, with diploid forms occurring in New England and tetraploid forms occurring primarily outside of New England. A. arbutifolia was only found as a tetraploid and did not appear to occur throughout parts of New England as is generally accepted. It is likely that numerous misidentifications of A. arbutifolia have occurred historically. Almost all wild A. prunifolia were tetraploid, with the exception of a single triploid plant. Evidence from AFLP analysis and several accessions expressing a continuum of morphological characteristics between those of A. arbutifolia and A. melanocarpa suggest that A. prunifolia is of interspecific hybrid origin. The occurrence of a natural triploid A. prunifolia accession and our ability to easily create triploid A. prunifolia progeny from diploid A. melanocarpa by tetraploid A. arbutifolia crosses supports the hybrid formation of the A. prunifolia species. Hybrid A. prunifolia origin is also supported by the prevalence of A. prunifolia accessions in geographic areas where A. arbutifolia and diploid A. melanocarpa interface. Most likely, tetraploid A. prunifolia found in the wild result from repeated formation of triploid F₁ interspecific hybrids and the triploid bridge mechanism. AFLP analysis, along with morphology and phenology, suggest that a new species of black-fruited Aronia (melanocarpaS) exists in the southern part of the A. melanocarpa geographic range. A. melanocarpaS plants are placed on a separate branch of the AFLP dendrogram that is separate from other Aronia species. Several accessions with large, wide leaves, large fruits and non-rhizomatous growth were found to be A. mitschurinii, an intergeneric hybrid between Aronia and Sorbus. All A. mitschurinii accessions were tetraploid.

在形态阿尼亚是复杂的基于扩增片段长度多态性（AFLP）和132倍体分析，大多是野生，种质。有四种Aronia和七个分类群，这些分类群由按倍性组合的物种组成。A. melanocarpa可以是二倍体或四倍体，二倍体形式出现在新英格兰，四倍体形式主要出现在新英格兰以外。A. arbutifolia仅作为四倍体被发现，并没有像普遍接受的那样在新英格兰的部分地区出现。历史上很可能对A. arbutifolia进行了多次错误识别。几乎所有的野生A. prunifolia除单个三倍体植物外，其余均为四倍体。来自 AFLP 分析和表达A. arbutifolia和A. melanocarpa形态特征连续统的几个种质的证据表明，A. prunifolia是种间杂种起源。天然三倍体A. prunifolia加入的发生以及我们通过四倍体A. arbutifolia杂交从二倍体A. melanocarpa轻松创建三倍体A. prunifolia后代的能力支持了A. prunifolia物种的杂交形成。杂种A. prunifolia起源也得到了流行的支持A. prunifolia种质在A. arbutifolia和二倍体A. melanocarpa交界的地理区域。最有可能的是，在野外发现的四倍体A. prunifolia是三倍体 F ₁种间杂种的重复形成和三倍体桥接机制的结果。AFLP 分析以及形态学和物候学表明，黑果树地理范围的南部存在一种新的黑果野樱莓( melanocarpa S) 。A. melanocarpa S 植物被放置在 AFLP 树状图的一个单独分支上，该分支与其他Aronia分开物种。一些具有大而宽的叶子、大果实和非根状茎生长的种质被发现是A. mitschurinii，一种野蔷薇和山梨之间的属间杂种。所有A. mitschurinii种质都是四倍体。