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Attempts to overcome postfertilization barrier in interspecific crosses of the genus Lens
Author(s) -
Ahmad M.,
Fautrier A. G.,
McNeil D. L.,
Burritt D. J.,
Hill G. D.
Publication year - 1995
Publication title -
plant breeding
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.583
H-Index - 71
eISSN - 1439-0523
pISSN - 0179-9541
DOI - 10.1111/j.1439-0523.1995.tb00859.x
Subject(s) - biology , hybrid , backcrossing , domestication , interspecific competition , botany , genus , interspecific hybridization , genetics , gene
Wild relatives are a potential source of genetic diversity to lentil ( Lens culinaris Medik). The objective of this research was to obtain viable interspecific hybrids between the domesticated lentil and its wild relatives. The paper details the results of a number of interspecific crosses among L. culinaris, L. orientalis, L. odemensis, L. ervoides and L. nigricans. Viable hybrids were produced between L. culinaris × L. orientalis, L. culinaris × L. nigricans, L. culinaris × L. ervoides and between L. culinaris × L. odemensis. Further viable hybrids were obtained between L. culinaris and L. ervoides , which have the potential to be a ‘bridge’ in hybridization to L. culinaris for specific L. nicrigans lines which proved recalcitrant in L. culinaris × L. nigricans crosses. This is the first time that four wild species of lentils have been used successfully in hybridization with cultivated lentils, and viable hybrids produced. This paper also suggests that the artificial supplement of GA 3 , hormone is needed after fertilization for the normal growth of the hybrid embryo, possibly as the natural GA 3 production is restricted with alien pollinations in cultivated lentils in both F 1 and backcross hybrids.