Enhancing phosphorus uptake efficiency through QTL-based selection for root system architecture in maize

QTL mapping for maize root system traits

Root-ABA1, a major constitutive QTL, affects maize root architecture and leaf ABA concentration at different water regimes.

Near-isogenic hybrids (NIHs), developed from crossing maize (Zea mays L.) backcross-derived lines (BDLs) differing for the parental alleles at a major QTL for leaf ABA concentration (L-ABA), were field-tested for 2 years under well-watered and water-stressed conditions. Differences among NIHs for L-ABA and other morpho-physiological traits were not affected by water regimes. On average, the QTL...

Comparative Analysis of Root Traits and the Associated QTLs for Maize Seedlings Grown in Paper Roll, Hydroponics and Vermiculite Culture System

Root system architecture (RSA) plays an important role in the acquisition of both nitrogen (N) and phosphorus (P) from the environment. Currently RSA is rarely considered as criteria for selection to improve nutrient uptake efficiency in crop breeding. Under field conditions roots can be greatly influenced by uncontrolled environment factors. Therefore, it is necessary to develop fast selection...

Feature Selection Algorithm for enhancing Modeling Efficiency

This paper presents High Probability Minimum Redundancy, HPMR, as a new algorithm for employing the most predictive features to contribute dimensionality reduction. The proposed algorithm is useful for finding new, optimal, and more informative features maintaining acceptable classification accuracy. A problem encountered in many large-scale information applications relevant to expert and intel...

Improvement of Rice Biomass Yield through QTL-Based Selection

Biomass yield of rice (Oryza sativa L.) is an important breeding target, yet it is not easy to improve because the trait is complex and phenotyping is laborious. Using progeny derived from a cross between two high-yielding Japanese cultivars, we evaluated whether quantitative trait locus (QTL)-based selection can improve biomass yield. As a measure of biomass yield, we used plant weight (aboveg...