Effects of MULTIFOLIATE-PINNA, AFILA, TENDRIL-LESS and UNIFOLIATA genes on leafblade architecture in Pisum sativum |
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Authors: | Raghvendra Kumar Mishra Swati Chaudhary Anil Kumar and Sushil Kumar |
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Institution: | (1) National Institute for Plant Genome Research (NIPGR), Aruna Asaf Ali Marg, Post Box 10531, New Delhi, 110067, India;(2) School of Biotechnology, Devi Ahilya University, Indore, 452001, India |
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Abstract: | In order to dissect the genetic regulation of leafblade morphogenesis, 16 genotypes of pea, constructed by combining the wild-type
and mutant alleles of MFP, AF, TL and UNI genes, were quantitatively phenotyped. The morphological features of the three domains of leafblades of four genotypes, unknown
earlier, were described. All the genotypes were found to differ in leafblade morphology. It was evident that MFP and TL functions
acted as repressor of pinna ramification, in the distal domain. These functions, with and without interaction with UNI, also
repressed the ramification of proximal pinnae in the absence of AF function. The expression of MFP and TL required UNI function.
AF function was found to control leafblade architecture multifariously. The earlier identified role of AF as a repressor of
UNI in the proximal domain was confirmed. Negative control of AF on the UNI-dependent pinna ramification in the distal domain was revealed. It was found that AF establishes a boundary between proximal
and distal domains and activates formation of leaflet pinnae in the proximal domain. |
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Keywords: | AFILA Compound-leaf-morphogenesis MULTIFOLIATE-PINNA Pisum- TENDRIL-LESS UNIFOLIATA |
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