Abstract
The morphological development of the leaf greatly influences plant architecture and crop yields. The maize leaf is composed of a leaf blade, ligule and sheath. Although extensive transcriptional profiling of the tissues along the longitudinal axis of the developing maize leaf blade has been conducted, little is known about the transcriptional dynamics in sheath tissues, which play important roles in supporting the leaf blade. Using a comprehensive transcriptome dataset, we demonstrated that the leaf sheath transcriptome dynamically changes during maturation, with the construction of basic cellular structures at the earliest stages of sheath maturation with a transition to cell wall biosynthesis and modifications. The transcriptome again changes with photosynthesis and lignin biosynthesis at the last stage of sheath tissue maturation. The different tissues of the maize leaf are highly specialized in their biological functions and we identified 15 genes expressed at significantly higher levels in the leaf sheath compared with their expression in the leaf blade, including the BOP2 homologs GRMZM2G026556 and GRMZM2G022606, DOGT1 (GRMZM2G403740) and transcription factors from the B3 domain, C2H2 zinc finger and homeobox gene families, implicating these genes in sheath maturation and organ specialization.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 5
Claim · model-written summary
The leaf sheath transcriptome changes dynamically during maturation.
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the leaf sheath transcriptome dynamically changes during maturation”
t0“Maize”
Claim · model-written summary
Early sheath maturation features construction of basic cellular structures before cell wall biosynthesis and modification.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the construction of basic cellular structures at the earliest stages of sheath maturation with a transition to cell wall biosynthesis and modifications”
t0“Maize”
Claim · model-written summary
Late sheath maturation is associated with photosynthesis and lignin biosynthesis transcriptome changes.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The transcriptome again changes with photosynthesis and lignin biosynthesis at the last stage of sheath tissue maturation”
t0“Maize”
Claim · model-written summary
Different maize leaf tissues are highly specialized in biological function.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The different tissues of the maize leaf are highly specialized in their biological functions”
t0“Maize”
Claim · model-written summary
Fifteen genes had significantly higher expression in leaf sheath than leaf blade.
- Organ / stage
- leaf sheathe0
- Outcome
- genes expressede0
- Direction
- highere0
- Value
- 15 genese0
- Comparator
- leaf bladee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“we identified 15 genes expressed at significantly higher levels in the leaf sheath compared with their expression in the leaf blade”
t0“Maize”