Volume 1, Issue 2, May 2014, Pages 75–82
Bachir Daoura Goudia1 and Hu Yin-Gang2
1 Dryland Cereals Research Program, ICRISAT Sahelian Center, International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), BP 12404, Niamey, Niger
2 Institute of Water Saving Agriculture in Arid Regions of China, Northwest A&F University, Yangling, Shaanxi, 712100, China
Original language: English
Copyright © 2014 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
The objective of this study was to estimate the inheritance of Rht5 dwarfing gene in wheat. Two tall elite cultivars Ningchun10 and Jinmai47 were crossed with Rht5 donor parent Marfed M, to produce F1. The F1 was allowed to self in order to obtain F2 seeds. Then the segregation populations were evaluated for some genetic parameters viz., coefficient of variability (CV), genetic variance (Vg), heritability percentage (h2 %) and genetic advance (GA) in 5 quantitative characters (Plant height, spike length, number of spikelets spike-1, number of fertile tillers and number of grains spike-1). All the characters were quantitatively inherited with varying degrees. The progeny Jinmai47 and Marfed M exhibited the highest heritability associated with a moderate genetic advance for plant height (h2% 66.65% and GA 17.46). The highest heritability with low genetic advance for spike length, number of spikelets spike-1 was observed in the progeny Jinmai47 and Marfed M. The two progenies showed high heritability associated with high genetic advance for number of fertile tillers and number of grains spike-1. In the two progenies plant height showed highly positive and significant correlation with spike length (0.73 & 0.71), number of spikelets spike-1 (0.55 & 0.52) and number of grains spike-1 (0.71 & 0.59).
The present findings suggest that the inheritance of Rht5 dwarfing gene is high although there is variation between different backgrounds of tall parents. It suggests that the selection at early segregation generation could be efficient for selecting superior lines of wheat with the target dwarfing gene. However, the use of molecular marker techniques could increase the efficiency of selecting superior lines with Rht5.
Author Keywords: Coefficient of variability, genetic advance, heritability, Rht5, Triticum aestivum.
Bachir Daoura Goudia1 and Hu Yin-Gang2
1 Dryland Cereals Research Program, ICRISAT Sahelian Center, International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), BP 12404, Niamey, Niger
2 Institute of Water Saving Agriculture in Arid Regions of China, Northwest A&F University, Yangling, Shaanxi, 712100, China
Original language: English
Copyright © 2014 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
The objective of this study was to estimate the inheritance of Rht5 dwarfing gene in wheat. Two tall elite cultivars Ningchun10 and Jinmai47 were crossed with Rht5 donor parent Marfed M, to produce F1. The F1 was allowed to self in order to obtain F2 seeds. Then the segregation populations were evaluated for some genetic parameters viz., coefficient of variability (CV), genetic variance (Vg), heritability percentage (h2 %) and genetic advance (GA) in 5 quantitative characters (Plant height, spike length, number of spikelets spike-1, number of fertile tillers and number of grains spike-1). All the characters were quantitatively inherited with varying degrees. The progeny Jinmai47 and Marfed M exhibited the highest heritability associated with a moderate genetic advance for plant height (h2% 66.65% and GA 17.46). The highest heritability with low genetic advance for spike length, number of spikelets spike-1 was observed in the progeny Jinmai47 and Marfed M. The two progenies showed high heritability associated with high genetic advance for number of fertile tillers and number of grains spike-1. In the two progenies plant height showed highly positive and significant correlation with spike length (0.73 & 0.71), number of spikelets spike-1 (0.55 & 0.52) and number of grains spike-1 (0.71 & 0.59).
The present findings suggest that the inheritance of Rht5 dwarfing gene is high although there is variation between different backgrounds of tall parents. It suggests that the selection at early segregation generation could be efficient for selecting superior lines of wheat with the target dwarfing gene. However, the use of molecular marker techniques could increase the efficiency of selecting superior lines with Rht5.
Author Keywords: Coefficient of variability, genetic advance, heritability, Rht5, Triticum aestivum.
How to Cite this Article
Bachir Daoura Goudia and Hu Yin-Gang, “Inheritance of Rht5 dwarfing gene in common wheat (Triticum aestivum L.),” International Journal of Innovation and Scientific Research, vol. 1, no. 2, pp. 75–82, May 2014.
