Peggy G. Lemaux
University of California, Berkeley
Publications 107
#1Rebecca Mackelprang (University of California, Berkeley)H-Index: 1
#2Peggy G. Lemaux (University of California, Berkeley)H-Index: 34
Genetic engineering is a molecular biology technique that enables a gene or genes to be inserted into a plant's genome. The first genetically engineered plants were grown commercially in 1996, and ...
#1Cheng Gao (University of California, Berkeley)H-Index: 11
#2Liliam Montoya (University of California, Berkeley)H-Index: 3
Last.John W. Taylor (University of California, Berkeley)H-Index: 83
view all 13 authors...
Community assembly of crop-associated fungi is thought to be strongly influenced by deterministic selection exerted by the plant host, rather than stochastic processes. Here we use a simple, sorghum system with abundant sampling to show that stochastic forces (drift or stochastic dispersal) act on fungal community assembly in leaves and roots early in host development and when sorghum is drought stressed, conditions when mycobiomes are small. Unexpectedly, we find no signal for stochasticity whe...
#1Nelle Varoquaux (University of California, Berkeley)H-Index: 7
#2Benjamin J. Cole (JGI: Joint Genome Institute)H-Index: 2
Last.Elizabeth Purdom (University of California, Berkeley)H-Index: 20
view all 28 authors...
Drought is the most important environmental stress limiting crop yields. The C4 cereal sorghum [Sorghum bicolor (L.) Moench] is a critical food, forage, and emerging bioenergy crop that is notably drought-tolerant. We conducted a large-scale field experiment, imposing preflowering and postflowering drought stress on 2 genotypes of sorghum across a tightly resolved time series, from plant emergence to postanthesis, resulting in a dataset of nearly 400 transcriptomes. We observed a fast and global...
1 CitationsSource
#1Mowei Zhou (Environmental Molecular Sciences Laboratory)H-Index: 12
#2Neha Malhan (Environmental Molecular Sciences Laboratory)H-Index: 1
Last.Ljiljana Paša-Tolić (Environmental Molecular Sciences Laboratory)H-Index: 42
view all 14 authors...
Abstract Sorghum [Sorghum bicolor (L.) Moench] is an important cereal crop noted for its ability to survive water-limiting conditions. Herein, we present an analytical workflow to explore the changes in histone modifications through plant developmental stages and two drought stresses in two sorghum genotypes that differ in their response to drought. Top-down mass spectrometry (MS) is an ideal method to profile histone modifications and distinguish closely related histone proteoforms. We analyzed...
#1Christer Jansson (PNNL: Pacific Northwest National Laboratory)H-Index: 7
#2Todd C. Mockler (Donald Danforth Plant Science Center)H-Index: 49
Last.Thomas P. BrutnellH-Index: 43
view all 10 authors...
#1Cheng Gao (University of California, Berkeley)H-Index: 11
#2Liliam Montoya (University of California, Berkeley)H-Index: 3
Last.John W. Taylor (University of California, Berkeley)H-Index: 83
view all 11 authors...
The ecology of fungi lags behind that of plants and animals because most fungi are microscopic and hidden in their substrates. Here, we address the basic ecological process of fungal succession in nature using the microscopic, arbuscular mycorrhizal fungi (AMF) that form essential mutualisms with 70–90% of plants. We find a signal for temporal change in AMF community similarity that is 40-fold stronger than seen in the most recent studies, likely due to weekly samplings of roots, rhizosphere and...
5 CitationsSource
#1Phil Bregitzer (ARS: Agricultural Research Service)H-Index: 19
#2Ryan H. Brown (ARS: Agricultural Research Service)H-Index: 4
Last.Peggy G. Lemaux (University of California, Berkeley)H-Index: 34
view all 7 authors...
#1Ling Xu (University of California, Berkeley)H-Index: 4
#2Dan Naylor (University of California, Berkeley)H-Index: 4
Last.Devin Coleman-Derr (University of California, Berkeley)H-Index: 26
view all 23 authors...
Drought stress is a major obstacle to crop productivity, and the severity and frequency of drought are expected to increase in the coming century. Certain root-associated bacteria have been shown to mitigate the negative effects of drought stress on plant growth, and manipulation of the crop microbiome is an emerging strategy for overcoming drought stress in agricultural systems, yet the effect of drought on the development of the root microbiome is poorly understood. Through 16S rRNA amplicon a...
28 CitationsSource
#1Thomas J. Kleist (University of California, Berkeley)H-Index: 6
#2Heather N. Cartwright (CIS: Carnegie Institution for Science)H-Index: 8
Last.Sheng Luan (University of California, Berkeley)H-Index: 66
view all 6 authors...
The moss Physcomitrella patens is emerging as a model organism due to the availability of established protocols for precise genome engineering by homologous recombination and a high-quality genome sequence (Rensing et al., 2008). Physcomitrella is an attractive system for cell biology and live cell imaging and has been used to investigate fundamental cellular processes such as tip growth, vesicle trafficking, and cytoskeletal dynamics (e.g., Furt et al., 2012). In each of these processes, calciu...
7 CitationsSource
#1Surinder Singh (McGill University)H-Index: 4
#2Rajiv K. Tripathi (McGill University)H-Index: 3
Last.SinghJaswinder (McGill University)H-Index: 12
view all 5 authors...
Barley is the cornerstone of the malting and brewing industry. It is known that 250 quantitative trait loci (QTLs) of the grain are associated with 19 malting-quality phenotypes. However, only a few of the contributing genetic components have been identified. One of these, on chromosome 4H, contains a major malting QTL, QTL2, located near the telomeric region that accounts, respectively, for 28.9% and 37.6% of the variation in the β-glucan and extract fractions of malt. In the current study, we ...
12 CitationsSource