Toll Free Helpline (India): 1800 1234 070

Rest of World: +91-9810852116

Free Publication Certificate

Vol. 12, Special Issue 10 (2023)

QTL mapping for morpho-physiological traits of rice under aerobic conditions using back cross populations

Author(s):
Rahul Kumar Meena, Kanika Rani and Rajinder K Jain
Abstract:
Restructuring the rice production system to reduce water consumption during cultivation is necessary to combat the negative impact of global climate change. The present study was conducted to identify QTLs associated with various morpho-physiological traits under aerobic production systems using back cross population. The findings showed that aerobic parent MAS26 showed significantly higher performance for most of the studied traits except grain length/breadth ratio. The studied traits showed again yield/plant revealed a positive correlation with an effective number of tillers/plants and 1000-grain weight. The composite interval mapping identified a total of 22 QTL0s for various morpho-physiological traits in BC1F2 (11) and BC1F3 (11) populations. The phenotypic variation explained by the identified QTL ranged from 9.1 to 84.0%.Grain yield/plant was associated with four QTLs on chromosomes 1, 3, and 7 with LOD values ranging from 3.31 to 8.43 explaining phenotypic variation 26.46 to 58.57%. The identification of QTL conferring improved adaptation and higher grain yield under direct seeding aerobic environment may facilitate the development of high-yielding direct-seeded rice varieties. However, QTLs identified in this study were putative and need to be further confirmed followed by validation.
Pages: 587-592  |  93 Views  46 Downloads
How to cite this article:
Rahul Kumar Meena, Kanika Rani and Rajinder K Jain. QTL mapping for morpho-physiological traits of rice under aerobic conditions using back cross populations. The Pharma Innovation Journal. 2023; 12(10S): 587-592.
Important Publications Links
The Pharma Innovation Journal

The Pharma Innovation Journal


Call for book chapter