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An analysis of interspecific hybrids and phylogenetic implications in Cucumis (Cucurbitaceae)

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Relation http://oar.icrisat.org/9658/
http://dx.doi.org/10.1007/BF00989386
10.1007/BF00989386
 
Title An analysis of interspecific hybrids and phylogenetic implications in Cucumis (Cucurbitaceae)
 
Creator Singh, A K
Yadava, K S
 
Subject Others
 
Description Investigations on interspecific crossability in 8Cucumis species (2n = 24) and chromosome pairing and pollen fertility of their hybrids from 15 combinations have been utilized for tracing the phylogenetic relationships among these taxa and factors responsible for their differentiation. A collective evaluation of data suggests that there are three broad groups of species, one of the spiny fruited interfertile species, whose hybrids show varying degree of chromosome associations and low to high pollen fertility; the second of species with non-spiny fruits, which are completely incompatible with the former but weakly compatible with the cultivated species,C. melo L. to produce partly developed seeds, and the third group ofC. metuliferusE. Mey. exSchrad. andC. melo and its different botanical varieties. The species with spiny fruits can be further divided based on karyomorphological similarities and/or on relative genomic affinity, indicated by chromosome pairing and hybrid pollen fertility.
 
Publisher Springer-Verlag
 
Date 1984-09
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/9658/1/bf00989386.pdf
Singh, A K and Yadava, K S (1984) An analysis of interspecific hybrids and phylogenetic implications in Cucumis (Cucurbitaceae). Plant Systematics and Evolution, 147 (03). pp. 237-252. ISSN 0378-2697