Analysis of Paternal Transmission of Morphological Characters in Progenies of Maternal Parents in a 4x – 2x Musa Polycross Mating Design
- September 16, 2020
- Posted by: RSIS Team
- Categories: Agriculture, IJRIAS
International Journal of Research and Innovation in Applied Science (IJRIAS) | Volume V, Issue III, February 2020 | ISSN 2454–6186
Victoria WILSON1, Abdou TENKOUANO2
1Department of Plant Science and Biotechnology, Rivers State University, PMB 5080, Port Harcourt, Rivers State, Nigeria
2 Executive Director of CORAF /West and Central African Council for Agricultural Research and Development, Dakar, Senegal
*Corresponding Author
Abstract- This experiment was conducted to (i) identify the progenies of paternal (pollen) parents using 20 coded morphological markers in order to establish which of these are inherited /transmitted to the progenies from their male progenitors in a 4x – 2x polycross mating design and (ii) determine using these markers, equal or unequal paternal contribution in progenies of all the maternal (seed) parents. Sixteen of the morphological characters were found to be monomorphic while four were polymorphic. The polymorphic characters were pseudostem wax (PW), pseudostem blotch (PB), presence of petiole canal (PC), and clasping of petiole margin (CPM) and these were used to screen the progenies in order to identify their male progenitors. Pseudostem wax (PW) was only present in TMB2x 5105-1, pseudostem blotch (PB) was unique to SH 3362, petiole canal (PC) and clasping of petiole margin (CPM) occurred in TMP2x 2829-62 and SH 3362, but not in TMB2x 5105-1. Chi square test showed unequal paternal contribution with respect to pseudostem wax (PW), pseudostem blotch (PB), presence of petiole canal (PC) in the progenies of the maternal parent PITA 5. It also showed unequal paternal contribution in the maternal parent PITA 3 with respect to petiole canal. Clasping of petiole margin showed equal paternal contribution in all the maternal parents.
Keywords:- Plantain and banana, male progenitor, quantitative morphological descriptors, qualitative morphological descriptors, characterization, polymorphism.
