Authors: X.Y. Song, Y.Y. Zhang, F.C. Wu and L. Zhang
Cysteine-rich polycomb-like (CPP) proteins are members of a small family of transcription factors, which have been identified and characterized in Arabidopsis, rice, and soybean. In this study, we investigated CPP-like genes in the maize genome. The results revealed 13 putative CPP-like genes, which were found to encode 17 distinct transcripts and were di.. Read More»
Authors: X.-H. Liu, Z.-P. Zheng, Z.-B. Tan, Z. Li and C. He
Ear weight is one of the most important agronomic traits considered necessary in maize (Zea mays L.) breeding projects. To determine its genetic basis, a population consisting of 239 recombinant inbred lines, derived from the cross Mo17 x Huangzao4, was used to detect quantitative trait loci (QTLs) for ear weight under two nit.. Read More»
Authors: Z.X. Chu, Q. Ma, Y.X. Lin, X.L. Tang, Y.Q. Zhou, S.W. Zhu, J. Fan and B.J. Cheng
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 co.. Read More»
Authors: S. Meri�§, ��. ��ak�±r, N. Turgut-Kara and ��. Ar�±1,
Despite the controversy about genetically modified (GM) plants, they are still incrementally cultivated. In recent years, many food and feed products produced by genetic engineering technology have appeared on store shelves. Controlling the production and legal presentation of GM crops are very important for the environment an.. Read More»
Authors: D.V. Ferreira, R.G. Von Pinho, M. Balestre and R.L. Oliveira
We evaluated the efficiency of the best linear unbiased predictor (BLUP) and the influence of the use of similarity in state (SIS) and similarity by descent (SBD) in the prediction of untested maize hybrids. Nine inbred lines of maize were crossed using a randomized complete diallel method. These materials were genotyped with .. Read More»
Authors: J.D. Wu, C.P. Jiang, H.S. Zhu, H.Y. Jiang, B.J. Cheng and S.W. Zhu
The ZmDULL1 gene encodes a starch synthase and is a determinant of the structure of endosperm starch in maize (Zea mays L.). However, little is known regarding the regulatory mechanism of the ZmDULL1 gene. In this study, we isolated and characterized the ZmDULL1 promoter (PDULL1), which is the 5' flanking region of ZmDULL1 in maize. Sequence analysis show.. Read More»
Authors: K.J. Sa, J.Y. Park, S.H. Choi, B.W. Kim, K.J. Park and J.K. Lee
Understanding genetic diversity, population structure, and linkage disequilibrium is a prerequisite for the association mapping of complex traits in a target population. In this study, the genetic diversity and population structure of 40 waxy and 40 normal inbred maize lines were investigated using 10 morphological traits and 200 simple sequence repeat (S.. Read More»
Authors: X.D. Ren, H.M. Liu, Y.H. Liu, Y.F. Hu, J.J. Zhang and Y.B. Huang
Starch is the major storage product in the endosperm of cereals. Its synthesis is closely related to sucrose metabolism. In our previous study, we found that the expression of most of the genes involved in starch synthesis might be regulated by sugars and hormones in the maize endosperm. However, little is known regarding the transcriptional regulation of.. Read More»
Authors: J.J. Zhang, X.Q. Zhang, Y.H. Liu, H.M. Liu, Y.B. Wang, M.L. Tian and Y.B. Huang
Key inbred lines have played a fundamental role in maize genetics and breeding. Research on variation characteristics of key genes from key inbred lines and from derived lines is important for early identification and evaluation of inbred maize lines. The nitrate reductase (NR) gene, which plays a central role in nitrate acqui.. Read More»
Authors: I.S.C. Granato, R. Fritsche-Neto, M.D.V. Resende and F.F. Silva
The objective of this study was to examine the effects of the type and intensity of nutritional stress, and of the statistical treatment of the data, on the genotype x environment (G x E) interaction for tropical maize (Zea mays). For this purpose, 39 hybrid combinations were evaluated under low- and high-nitrogen and -phospho.. Read More»