Evidence map›Paper›PMID 26895334›Full record

ArticlePlanta2016

ZmCCD7/ZpCCD7 encodes a carotenoid cleavage dioxygenase mediating shoot branching.

Xiaoying Pan, Hongyan Zheng, Jianyu Zhao, Yanjun Xu, Xuexian Li

Abstract read
PubMed Publisher
In one paragraph

Article in Planta, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

16 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Phylogeny ofInternational journal of molecular sciences · 2023
    Article
  6. Article
  7. Review
  8. Article
  9. iTRAQ Proteomic Analysis of Wheat (Frontiers in plant science · 2022
    Article
  10. Review
  11. Carotenoid Cleavage Dioxygenase Genes ofInternational journal of molecular sciences · 2021
    Article
  12. Review
  13. Article
  14. Plant physiology · 2020
    Article
  15. Article
  16. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Xiaoying PanDepartment of Plant Nutrition, China Agricultural University, Beijing, 100193, China.
Hongyan ZhengDepartment of Plant Nutrition, China Agricultural University, Beijing, 100193, China.
Jianyu ZhaoDepartment of Vegetable Sciences, China Agricultural University, Beijing, 100193, China.
Yanjun XuDepartment of Applied Chemistry, China Agricultural University, Beijing, 100193, China.
Xuexian LiDepartment of Plant Nutrition, China Agricultural University, Beijing, 100193, China. steve@cau.edu.cn.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

MAIN

conclusionZmCCD7/ZpCCD7 encodes a carotenoid cleavage dioxygenase that may mediate strigolactone biosynthesis highly responsive to phosphorus deficiency and undergoes negative selection over domestication from Zea ssp. parviglumis to Zea mays. Carotenoid cleavage dioxygenase 7 (CCD7) functions to suppress shoot branching by controlling strigolactone biosynthesis. However, little is known about CCD7 and its functions in maize and its ancestor (Zea ssp. parviglumis) with numerous shoot branches. We found that ZmCCD7 and ZpCCD7 had the same coding sequence, indicating negative selection of the CCD7 gene over domestication from Zea ssp. parviglumis to Zea mays. CCD7 expression was highly responsive to phosphorus deficiency in both species, especially in the meristematic zone and the pericycle of the elongation zone of maize roots. Notably, the crown root had the strongest ZmCCD7 expression in the meristematic zone under phosphorus limitation. Transient expression of GFP tagged ZmCCD7/ZpCCD7 in maize protoplasts indicated their localization in the plastid. Further, ZmCCD7/ZpCCD7 efficiently catalyzed metabolism of six different linear and cyclic carotenoids in E. coli, and generated β-ionone by cleaving β-carotene at the 9,10 (9',10') position. Together with suppression of shoot branching in the max3 mutant by transformation of ZmCCD7/ZpCCD7, our work suggested that ZmCCD7/ZpCCD7 encodes a carotenoid cleavage dioxygenase mediating strigolactone biosynthesis in maize and its ancestor.

Indexed as

Biosynthetic PathwaysCarotenoidsCloning, MolecularDioxygenasesGene Expression Regulation, PlantLactonesPhosphorusPlant ProteinsPlant ShootsZea maysCarotenoidsDioxygenasesLactonesPhosphorusPlant ProteinsCarotenoidCarotenoid cleavage dioxygenase 7 (CCD7)Phosphorus limitationZea maysZea. ssp. parviglumis

Identifiers

What OpenQuestion holds

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Read underepoch 390

Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.