Michael Lenhard
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Articles by Michael Lenhard
Supergene control of chiral development in mirror-image flowers
Editor’s summary Structured Abstract Abstract Supplementary Materials References and Notes Information & Authors Metrics & Citations Check Access References Figures Tables Media Share Editor’s summary Butterfly lilies are insect-pollinated flowers in which the female reproductive organ is either deflected to the left or to the right and the male organ to the opposite side. How this asymmetry develops and the underlying genetic mechanisms were unknown. Xue et al.
Epigenetic regulation of fruit shape determination by the JAGGED gene in Capsella rubella
Abstract Fruits are a key feature defining angiosperms, yet how local growth is coordinated during development to generate diverse fruits remains unclear. Here, we demonstrate that the Capsella rubella C2H2-zinc finger transcription factor JAGGED (CrJAG) controls fruit shape determination by promoting both cell division and anisotropic growth.
Pre-mRNA processing factors differentially impact coordination between co-transcriptional cleavage and transcription termination - Nature Communications
Abstract Co-transcriptional cleavage and transcription termination are closely related processes during mRNA maturation, yet their coordination remains poorly understood due to difficulties in detecting these transient events. Here, we applied single-molecule nascent RNA sequencing to simultaneously capture the cleavage status and readthrough distance on the same nascent RNA molecules and characterize 14 mutants of various pre-mRNA processing factors in Arabidopsis.
Establishment of an Agrobacterium‐mediated transformation system for the genetic engineering of Linum grandiflorum Desf.
1 INTRODUCTION Linum grandiflorum is an annual species of flax known for its red flowers that show style length dimorphism. This interesting floral polymorphism was already mentioned and described by Darwin in 1863 in his work on heterostyly in the genus Linum (Darwin, 1863). In L. grandiflorum populations, short- and long-styled morphs co-occur. This floral characteristic is linked to the S-locus supergene, which also controls self-incompatibility. L.
Mechanisms of prezygotic post-pollination reproductive barriers in plants
Ludi Wang1*† and Dmitry A. Filatov2† 1Institute of Biological, Environmental and Rural Sciences (IBERS), Aberystwyth University, Gogerddan, Aberystwyth, United Kingdom 2Department of Biology, University of Oxford, South Parks Road, Oxford, United Kingdom Hybridisation between individuals of different species can lead to maladapted or inviable progeny due to genetic incompatibilities between diverging species.
Genomic and epigenomic determinants of heat stress-induced transcriptional memory in Arabidopsis - Genome Biology
HSFA2 and HSFA3 have been identified as key memory HSFs that play a crucial role during HS-mediated sustained induction and transcriptional memory. In this study, we identified a genome-wide set of memory genes that are direct targets of HSFA2/A3 and whose expression is dependent on both factors. These memory targets of HSFA2/A3 are characterized by a combination of six features.
Lectins in pistils play a key role in self-incompatibility in the heterostylous Linum perenne
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Plant Biology: Learning to Love Yourself
Summary In self-incompatible plants the female style rejects self pollen, yet the extent to which the female style in the many self-compatible species can still select between different pollen genotypes and thus bias fertilization success is unclear. A new study identifies the molecular basis for how styles of the self-compatible coyote tobacco bias the fertilization success of pollen genotypes using matching gene expression patterns in a manner analogous to cryptic female choice in animals.
Capsella
Purchase access to all full-text HTML articles for 6 or 36 hr at a low cost. Click here to explore this opportunity. To read this article in full you will need to make a payment Hybrid origins and the earliest stages of diploidization in the highly successful recent polyploid Capsella bursa-pastoris. : Fruit shape diversity in the Brassicaceae is generated by varying patterns of anisotropy. : Recent speciation associated with the evolution of selfing in Capsella.
Plant Development: Keeping on the Straight and Narrow and Flat
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