Center for Genomic Sciences, UNAM Cuernavaca, Morelos, Mexico.
Instituto de Recursos Naturales y Agrobiología, IRNASA-CSIC, Salamanca, Spain.
Int J Syst Evol Microbiol. 2024 May;74(5). doi: 10.1099/ijsem.0.006373.
Rhizobia are bacteria that form nitrogen-fixing nodules in legume plants. The sets of genes responsible for both nodulation and nitrogen fixation are carried in plasmids or genomic islands that are often mobile. Different strains within a species sometimes have different host specificities, while very similar symbiosis genes may be found in strains of different species. These specificity variants are known as symbiovars, and many of them have been given names, but there are no established guidelines for defining or naming them. Here, we discuss the requirements for guidelines to describe symbiovars, propose a set of guidelines, provide a list of all symbiovars for which descriptions have been published so far, and offer a mechanism to maintain a list in the future.
根瘤菌是在豆科植物中形成固氮结瘤的细菌。负责结瘤和固氮的基因集位于质粒或基因组岛中，这些质粒或基因组岛通常是可移动的。同一物种内的不同菌株有时具有不同的宿主特异性，而在不同物种的菌株中可能发现非常相似的共生基因。这些特异性变体被称为共生变种，其中许多已经被命名，但对于定义或命名它们没有既定的准则。在这里，我们讨论了描述共生变种的准则的要求，提出了一套准则，提供了迄今为止已发表描述的所有共生变种的列表，并提供了一种机制来维护未来的列表。
