Developmental plasticity in multimodal signals: light environment produces novel signalling phenotypes in a butterfly.

Developmental plasticity can alter the expression of sexual signals in novel environments and is therefore thought to play an important role in promoting divergence. Sexual signals, however, are often multimodal and mate choice multivariate. Hence, to understand how developmental plasticity can facilitate divergence, we must assess plasticity across signal components and its cumulative impact on signalling.

Loss of GSNOR1 Function Leads to Compromised Auxin Signaling and Polar Auxin Transport.

Cross talk between phytohormones, nitric oxide (NO), and auxin has been implicated in the control of plant growth and development. Two recent reports indicate that NO promoted auxin signaling but inhibited auxin transport probably through S-nitrosylation. However, genetic evidence for the effect of S-nitrosylation on auxin physiology has been lacking.

Addition of individual chromosomes of maize inbreds B73 and Mo17 to oat cultivars Starter and Sun II: maize chromosome retention, transmission, and plant phenotype.

Oat-maize addition (OMA) lines with one, or occasionally more, chromosomes of maize (Zea mays L., 2n = 2x = 20) added to an oat (Avena sativa L., 2n = 6x = 42) genomic background can be produced via embryo rescue from sexual crosses of oat x maize.

Mapping QTLs contributing to Ustilago maydis resistance in specific plant tissues of maize.

Quantitative trait loci (QTL) contributing to the frequency and severity of Ustilago maydis infection in the leaf, ear, stalk, and tassel of maize plants were mapped using an A188 x CMV3 and W23 x CMV3 recombinant inbred (RI) populations. QTLs mapped to genetic bins 2.04 and 9.