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A merodiploid is a partially diploid bacterium, which has its own chromosome complement and a chromosome fragment introduced by conjugation, transformation or transduction.[1] It can also be defined as an essentially haploid organism that carries a second copy of a part of its genome. The term is derived from the Greek, meros = part, and was originally used to describe both unstable partial diploidy, such as that which occurs briefly in recipients after mating with an Hfr strain (1), and the stable state, exemplified by F-prime strains (see Hfr'S And F-Primes). Over time the usage has tended to confine the term to descriptions of stable genetic states. Merodiploidy refers to the partial duplication of chromosomes in a haploid organism.[2]
References
edit- ^ "merodiploid". The Free Dictionary. Retrieved 2016-05-13.
- ^ Johnston, Calum; Caymaris, Stéphanie; Zomer, Aldert; Bootsma, Hester J.; Prudhomme, Marc; Granadel, Chantal; Hermans, Peter W. M.; Polard, Patrice; Martin, Bernard; Claverys, Jean-Pierre (26 September 2013). "Natural Genetic Transformation Generates a Population of Merodiploids in Streptococcus pneumoniae". PLOS Genetics. 9 (9): e1003819. doi:10.1371/journal.pgen.1003819. PMC 3784515. PMID 24086154.
External links
edit- "MCB 150 at the University of Illinois @ Urbana-Champaign". Life.illinois.edu. Retrieved 2016-05-13.
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