Nydam Marie L
Math and Science Program, Soka University of America, 1 University Drive, Aliso Viejo, CA 92656, USA.
Biology (Basel). 2020 Jun 16;9(6):129. doi: 10.3390/biology9060129.
Allorecognition, the ability to distinguish self or kin from unrelated conspecifics, plays several important biological roles in invertebrate animals. Two of these roles include negotiating limited benthic space for colonial invertebrates, and inbreeding avoidance through self-incompatibility systems. Subphylum Tunicata (Phylum Chordata), the sister group to the vertebrates, is a promising group in which to study allorecognition. Coloniality has evolved many times independently in the tunicates, and the best known invertebrate self-incompatibility systems are in tunicates. Recent phylogenomic studies have coalesced around a phylogeny of the Tunicata as well as the Order Stolidobranchia within the Tunicata, providing a path forward for the study of allorecognition in this group.
异体识别，即区分自身或亲属与无关同种个体的能力，在无脊椎动物中发挥着几个重要的生物学作用。其中两个作用包括为群体无脊椎动物争夺有限的底栖空间，以及通过自我不亲和系统避免近亲繁殖。被囊动物亚门（脊索动物门）是脊椎动物的姐妹类群，是研究异体识别的一个很有前景的类群。群体生活在被囊动物中已经多次独立进化，最著名的无脊椎动物自我不亲和系统存在于被囊动物中。最近的系统发育基因组学研究围绕被囊动物以及被囊动物中的硬鳃海鞘目的系统发育聚合在一起，为研究该类群中的异体识别提供了一条前进的道路。
