Maize (Zea mays)

Genetic loci mapping associated with maize kernel number per ear based on a recombinant inbred line population grown under different nitrogen regimes

X. H. Liu, He, S. L., Zheng, Z. P., Tan, Z. B., Li, Z., and He, C., Genetic loci mapping associated with maize kernel number per ear based on a recombinant inbred line population grown under different nitrogen regimes, vol. 10, pp. 3267-3274, 2011.

Kernel number per ear (KNE) is one of the most important yield-related agronomic traits in maize (Zea mays). To clarify its genetic basis, we made a quantitative trait locus (QTL) analysis of KNE in a recombinant inbred line population derived from lines Mo17 and Huangzao4, under two nitrogen (N) regimes. Seven QTLs, on chromosomes 4, 6 and 9, were mapped under the high N regime, which explained phenotypic variation ranging from 5.03 to 15.49%.

Genome-wide identification, classification, and analysis of two-component signal system genes in maize

Z. X. Chu, Ma, Q., Lin, Y. X., Tang, X. L., Zhou, Y. Q., Zhu, S. W., Fan, J., and Cheng, B. J., Genome-wide identification, classification, and analysis of two-component signal system genes in maize, vol. 10, pp. 3316-3330, 2011.

Cytokinins play many vital roles in plant development and physiology. In plants, cytokinin signals are sensed and transduced by the two-component signal system. This signaling cascade is typically composed of three proteins: a sensory histidine kinase, a histidine phosphotransfer protein, and a response regulator. Through a comprehensive genome-wide analysis of the maize (Zea mays) genome, 48 genes were identified, including 11 ZmHKs, 9 ZmHPs, and 28 ZmRRs (21 A-type ZmRRs and 7 B-type ZmRRs).

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