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Are B chromosomes useful for crop improvement?
Plants, People, Planet
The continuity of chromosomes between one division of the nucleus and the next was a major topic of discussion in the early days of the science of cytogenetics. Wilson (1907 Wilson ( , 1909) ) was studying this question in the insect Metapodius terminalis, the leaf-footed plant bug, when he made a remarkable discovery: he found B chromosomes, which he called supernumeraries. In Metapodius the standard chromosome complement consists of 2n = 20 autosomes, plus a pair of sex chromosomes, and indoi:10.1002/ppp3.16 fatcat:ecuzfomijbhytpa6g4v7ow4afe