Abstract
The lentil (Lens culinaris Medik.) is a self-pollinated seed legume with cleistogamous flowers. A spontaneous open flower semi leaf-less mutant, was observed from segregating generation (F4) of a cross IPL 313 × RKL 1001 in which reproductive organs were not enclosed by the keel petals and thus remained exposed. Leaves on this mutant plant was very less and random with 1–3 pairs of leaf lets whereas in normal plant leaves are present at every reproductive node with 5–7 pairs of leaf lets. A very large number of open flowers (>90 %) remained sterile in mutant plant and their progenies, though its pollen fertility was as high as the standard cultivars. The progenies of the mutant open flower plant were segregates in three morphological different plant types as (1) open flower leaf-less plants, (2) open flower semi leaf-less plants and (3) normal plants having cleistogamous (closed) flowers and normal bearing leaves. The open flower leafless plant were low yielder whereas open flower semi leafless progenies have good yield potential and are important source of rare novel mutant alleles for important economic traits like multiple peduncles per reproductive node, more number of flowers/pods per peduncle and long reproductive phase. The open flower trait offers opportunity for exploring hybrid technology in the lentil and mutant alleles can play a crucial role in understanding the genetics of the target trait and for improvement of lentils.
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This work was financially supported by the RKVY, Govt. of Rajasthan, Jaipur and All India Coordinated Research Project on MULLaRP, IIPR, Kanpur, India.
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Meenakshi Dheer and S. S. Punia have contributed equally to this work.
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Dheer, M., Punia, S.S., Ram, B. et al. Morphological features of an open flower mutant plant and characterization of their progenies in lentil (Lens culinaris Medik.). Genet Resour Crop Evol 61, 879–886 (2014). https://doi.org/10.1007/s10722-014-0100-y
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DOI: https://doi.org/10.1007/s10722-014-0100-y