Evidence map›Paper›PMID 34542669›Full record

ArticlePlant cell reports2021

Non-homologous chromosome pairing during meiosis in haploid Brassica rapa.

Jiachen Yuan, Gongyao Shi, Yan Yang, Janeen Braynen, Xinjie Shi, Xiaochun Wei, Zhuolin Hao, Xiaowei Zhang, Yuxiang Yuan, Baoming Tian and 2 more

Abstract read
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Article in Plant cell reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.4field-weighted citation impact, top 25% of its field
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

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3 · Its place in the literature

Who cites it

3 citing papers in PubMed, 3 citations in OpenAlex.

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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

12 authors at 1 institution in 1 country.

Jiachen Yuan *School of Life Sciences, Zhengzhou University, Zhengzhou, 450001, Henan, China.ORCID http://orcid.org/0000-0002-2480-2273
Gongyao Shi *School of Life Sciences, Zhengzhou University, Zhengzhou, 450001, Henan, China.
Yan Yang *School of Life Sciences, Zhengzhou University, Zhengzhou, 450001, Henan, China.
Janeen BraynenHenan International Joint Laboratory of Crop Gene Resources and Improvements, School of Agricultural Sciences, Zhengzhou University, Zhengzhou, 450001, Henan, China.
Xinjie ShiSchool of Life Sciences, Zhengzhou University, Zhengzhou, 450001, Henan, China.
Xiaochun WeiInstitute of Horticulture, Henan Academy of Agricultural Sciences, Graduate T & R Base of Zhengzhou University, Zhengzhou, 450002, Henan, China.
Zhuolin HaoSchool of Life Sciences, Zhengzhou University, Zhengzhou, 450001, Henan, China.
Xiaowei ZhangInstitute of Horticulture, Henan Academy of Agricultural Sciences, Graduate T & R Base of Zhengzhou University, Zhengzhou, 450002, Henan, China.
Yuxiang YuanInstitute of Horticulture, Henan Academy of Agricultural Sciences, Graduate T & R Base of Zhengzhou University, Zhengzhou, 450002, Henan, China.
Baoming TianSchool of Life Sciences, Zhengzhou University, Zhengzhou, 450001, Henan, China.
Zhengqing XieHenan International Joint Laboratory of Crop Gene Resources and Improvements, School of Agricultural Sciences, Zhengzhou University, Zhengzhou, 450001, Henan, China. zqxie@zzu.edu.cn.
Fang WeiSchool of Life Sciences, Zhengzhou University, Zhengzhou, 450001, Henan, China. fangwei@zzu.edu.cn.
Zhengzhou University · CN

Funding

henan provincial science foundation of china No. 202300410366program for science &technology innovation talents in universities of henan province No.19HASTIT014youth innovation project of key discipline of zhengzhou university No. XKZDQN202002
6 · The paper itself

Abstract

key messageCytological observations of chromosome pairing showed that evolutionarily genome duplication might reshape non-homologous pairing during meiosis in haploid B. rapa. A vast number of flowering plants have evolutionarily undergone whole genome duplication (WGD) event. Typically, Brassica rapa is currently considered as an evolutionary mesohexaploid, which has more complicated genomic constitution among flowering plants. In this study, we demonstrated chromosome behaviors in haploid B. rapa to understand how meiosis proceeds in presence of a single homolog. The findings showed that a diploid-like chromosome pairing was generally adapted during meiosis in haploid B. rapa. Non-homologous chromosomes in haploid cells paired at a high-frequency at metaphase I, over 50% of examined meiocytes showed at least three pairs of bivalents then equally segregated at anaphase I during meiosis. The fluorescence immunostaining showed that the cytoskeletal configurations were mostly well-organized during meiosis. Moreover, the expressed genes identified at meiosis in floral development was rather similar between haploid and diploid B. rapa, especially the expression of known hallmark genes pivotal to chromosome synapsis and homologous recombination were mostly in haploid B. rapa. Whole-genome duplication evolutionarily homology of genomic segments might be an important reason for this phenomenon, which would reshape the first division course of meiosis and influence pollen development in plants.

Indexed as

Chromosome PairingMeiosisPollenBrassica rapaChromosomes, PlantGene Expression Regulation, PlantHaploidyHomologous RecombinationBrassica rapaGenome duplicationHaploidMeiosisNon-homologous pairing

Identifiers

PMID34542669
OpenAlexW3201575510

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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.