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Needle1 (ndl1) encodes a mitochondria localized ATPase required for thermotolerant maize growth

ABSTRACT: This SuperSeries is composed of the SubSeries listed below.

ORGANISM(S): Zea mays

PROVIDER: GSE129684 | GEO | 2019/08/06

REPOSITORIES: GEO

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NEEDLE1 (NDL1) ENCODES A MITOCHONDRIA LOCALIZED ATPase REQUIRED FOR THERMOTOLERANT MAIZE GROWTH

Project description:RNA-seq was performed on 5-10mm maize tassels

2019-08-28 | GSE135468 | GEO

needle1 (ndl1) encodes a mitochondria localized ATPase required for thermotolerant maize growth [greenhouse]

Project description:RNA-seq was performed on 2-4mm WT and Bif1;Bif4 double heterozygous mutant maize tassels grown in a greenhouse

2019-08-06 | GSE129683 | GEO

needle1 (ndl1) encodes a mitochondria localized ATPase required for thermotolerant maize growth [field]

Project description:RNA-seq was performed on 2-4mm WT and ndl1 mutant maize tassels

2019-08-06 | GSE129680 | GEO

NEEDLE1 encodes a mitochondria localized ATP-dependent metalloprotease required for thermotolerant maize growth.

Project description:Meristems are highly regulated structures ultimately responsible for the formation of branches, lateral organs, and stems, and thus directly affect plant architecture and crop yield. In meristems, genetic networks, hormones, and signaling molecules are tightly integrated to establish robust systems that can adapt growth to continuous inputs from the environment. Here we characterized needle1 (ndl1), a temperature-sensitive maize mutant that displays severe reproductive defects and strong genetic interactions with known mutants affected in the regulation of the plant hormone auxin. NDL1 encodes a mitochondria-localized ATP-dependent metalloprotease belonging to the FILAMENTATION TEMPERATURE-SENSITIVE H (FTSH) family. Together with the hyperaccumulation of reactive oxygen species (ROS), ndl1 inflorescences show up-regulation of a plethora of stress-response genes. We provide evidence that these conditions alter endogenous auxin levels and disrupt primordia initiation in meristems. These findings connect meristem redox status and auxin in the control of maize growth.

| S-EPMC6765280 | biostudies-literature

NEEDLE1 (NDL1) ENCODES A MITOCHONDRIA LOCALIZED ATPase REQUIRED FOR THERMOTOLERANT MAIZE GROWTH

Project description:NEEDLE1 (NDL1) ENCODES A MITOCHONDRIA LOCALIZED ATPase REQUIRED FOR THERMOTOLERANT MAIZE GROWTH

| PRJNA558983 | ENA

needle1 (ndl1) encodes a mitochondria localized ATPase required for thermotolerant maize growth

Project description:needle1 (ndl1) encodes a mitochondria localized ATPase required for thermotolerant maize growth

| PRJNA532436 | ENA

needle1 (ndl1) encodes a mitochondria localized ATPase required for thermotolerant maize growth [field]

Project description:needle1 (ndl1) encodes a mitochondria localized ATPase required for thermotolerant maize growth [field]

| PRJNA532439 | ENA

needle1 (ndl1) encodes a mitochondria localized ATPase required for thermotolerant maize growth [greenhouse]

Project description:needle1 (ndl1) encodes a mitochondria localized ATPase required for thermotolerant maize growth [greenhouse]

| PRJNA532440 | ENA

Mitochondria-localized ZNFX1 functions as a dsRNA sensor to initiate antiviral responses via MAVS

Project description:This SuperSeries is composed of the SubSeries listed below.

2019-08-30 | GSE132979 | GEO

A Maize Male Gametophyte-Specific Gene Encodes ZmLARP6c1, a Potential RNA-Binding Protein Required for Competitive Pollen Tube Growth.

Project description:Members of the La-related protein family (LARPs) contain a conserved La module, which has been associated with RNA-binding activity. Expression of the maize gene GRMZM2G323499/Zm00001d018613, a member of the LARP family, is highly specific to pollen, based on both transcriptomic and proteomic assays. This suggests a pollen-specific RNA regulatory function for the protein, designated ZmLARP6c1 based on sequence similarity to the LARP6 subfamily in Arabidopsis. To test this hypothesis, a Ds-GFP transposable element insertion in the ZmLarp6c1 gene (tdsgR82C05) was obtained from the Dooner/Du mutant collection. Sequencing confirmed that the Ds-GFP insertion is in an exon, and thus likely interferes with ZmLARP6c1 function. Tracking inheritance of the insertion via its endosperm-expressed GFP indicated that the mutation was associated with reduced transmission from a heterozygous plant when crossed as a male (ranging from 0.5 to 26.5% transmission), but not as a female. Furthermore, this transmission defect was significantly alleviated when less pollen was applied to the silk, reducing competition between mutant and wild-type pollen. Pollen grain diameter measurements and nuclei counts showed no significant differences between wild-type and mutant pollen. However, in vitro, mutant pollen tubes were significantly shorter than those from sibling wild-type plants, and also displayed altered germination dynamics. These results are consistent with the idea that ZmLARP6c1 provides an important regulatory function during the highly competitive progamic phase of male gametophyte development following arrival of the pollen grain on the silk. The conditional, competitive nature of the Zmlarp6c1::Ds male sterility phenotype (i.e., reduced ability to produce progeny seed) points toward new possibilities for genetic control of parentage in crop production.

| S-EPMC7947365 | biostudies-literature

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