Plasmons and male sterility types inSolanum verrucosumand its interspecific hybrid derivatives

✍ Scribed by M. M. F. Abdalla; J. G. Th. Hermsen

• Book ID: 104616771
• Publisher: Springer
• Year: 1972
• Tongue: English
• Weight: 821 KB
• Volume: 21
• Category: Article
• ISSN: 0014-2336
• DOI: 10.1007/bf00036761

✦ Synopsis

Solanum verrucosum (2n = 24) is easily crossablewithmanydiploidspeciesandhaploids, but usually as a female partner only . All interspecific hybrids studied appeared male sterile due to interaction of S .verrucosum plasmons with genes from male parents . Seven male sterility types have been discovered in the investigations made on 21 S. verrucosum introductions and their interspecific hybrid derivatives . These are briefly discussed . S . verrucosum proves to possess at least four plasmons denoted as [Trs], [Ps'], [Svs] and fns'] . Each produces a diagnostic type of male sterility in the presence of the specific plasmon-sensitive genes which are widely spread . The role of hybrid sterility as a barrier to gene exchange between populations is discussed .