Summary
Meiosis was studied in an F1 hybrid between domesticated Capsicum annuum and its close relative C. chinense. The parental accessions differed by two chromosomal interchanges. A hexavalent was present in 18% of pollen mother cells collected in spring and summer but no multivalents were found in pollen mother cells collected in autumn and chiasmata were also less frequent then. Interchange heterozygosity, often resulting in multiples of six or more chromosomes, is characteristic of interspecific hybrids in Capsicum.
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Lanteri, S., Pickersgill, B. Chromosomal structural changes in Capsicum annuum L. and C. chinense Jacq.. Euphytica 67, 155–160 (1993). https://doi.org/10.1007/BF00022739
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DOI: https://doi.org/10.1007/BF00022739