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Breaking breeding barriers inLycopersicon. 4. Breakdown of unilateral incompatibility betweenL. peruvianum(L.) Mill. andL. esculentumMill.

✍ Scribed by N. G. Hogenboom

Book ID: 104617971
Publisher: Springer
Year: 1972
Tongue: English
Weight: 535 KB
Volume: 21
Category: Article
ISSN: 0014-2336
DOI: 10.1007/bf00039334

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✦ Synopsis

A brief survey is given of the occurrence of unilateral incompatibility between populations. It is reported how the unilateral incompatibility between L. peruviunum and L. esculentum has been broken stepwise by inbreeding with the aid of self-compatibility in L. peruvianum and selection in this self-compatibleL. peruvianum material for absence of L. esculentum pollen tube inhibition, and how L. peruviunum material has been developed on which large-scale L. peruvianum x L. esculentum hybrid production is possible. It is concluded that the unilateral incompatibility between L. esculentum and L. peruvianum consists of a complex of separate processes.

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Attempts were made to break the self-incompatibility in L. peruvianum by selection of mutated S-alleles through large-scale self-pollination on clones with pollen which was mutagenically treated in different stages of development . Besides self-compatibility was searched for in inbred lines . The s