Alien chromosome transmission and somatic elimination in monosomic addition lines of Gossypium australe F. Muell in G. hirsutum L.

摘要: The efficiency of using monosomic alien addition lines (MAALs) to introgress agronomical traits interest carried by wild diploid Gossypium species into the main cultivated cotton G. hirsutum depends on opportunities confronting chromosome with recipient background genome at each generation and occurrence translocations homoeologous recombinations. selfed-progeny five MAALs australe in was screened SSR markers determine transmission frequency monitor its integrity. Three revealed a significantly lower than expected ratio one MAAL presented an exclusive additional chromosome. In these four transmitted almost unaltered. With fifth normally but altered half plants carrying it. MAAL, brown fiber, emergence some white fiber somatic elimination loss this seems be triggered deletion.