Nature Plants最新文献_第3页

Cycling ferulate in monocot cell walls 单子叶植物细胞壁中的阿魏酸循环

IF 18 1区生物学

Nature Plants Pub Date : 2024-09-04 DOI: 10.1038/s41477-024-01787-9

Rebecca A. Smith, John Ralph

引用次数: 0

Understanding diversified peanuts 了解多样化花生

IF 18 1区生物学

Nature Plants Pub Date : 2024-09-04 DOI: 10.1038/s41477-024-01798-6

Jun Lyu

{"title":"Understanding diversified peanuts","authors":"Jun Lyu","doi":"10.1038/s41477-024-01798-6","DOIUrl":"https://doi.org/10.1038/s41477-024-01798-6","url":null,"abstract":"They first performed chloroplast sequencing on 36 wild and 77 cultivated accessions and whole-genome sequencing on a larger panel of 367 accessions (including 353 A. hypogaea, 2 A. monticola, 11 A. duranensis and 1 A. ipaensis). The diploid species A. duranensis and A. ipaensis have been considered to contribute to the A and B subgenomes of A. hypogaea, respectively, and A. hypogaea includes two subspecies (A. hypogaea subsp. hypogaea (Ahh) and A. hypogaea subsp. fastigiata (Ahf)).Chloroplast and nuclear phylogenetic trees based on the polymorphic sites of the genomes showed a clear-cut divergence between the two subspecies. Furthermore, the chloroplast tree shows that several A. duranensis accessions cluster with Ahh as a clade, which then clusters with Ahf as sister groups. This topology supports the notion that the two subspecies have different maternal sources. Some inconsistencies observed between chloroplast and nucleus phylogenies were probably due to homeologous exchanges or misassemblies of homeologous regions. Overall, the Ahh subspecies displays lower genetic diversity and higher linkage disequilibrium decay than the Ahf subspecies.","PeriodicalId":18904,"journal":{"name":"Nature Plants","volume":null,"pages":null},"PeriodicalIF":18.0,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142130749","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Stage dependence of Elton’s biotic resistance hypothesis of biological invasions 埃尔顿生物入侵抗性假说的阶段依赖性

IF 18 1区生物学

Nature Plants Pub Date : 2024-09-03 DOI: 10.1038/s41477-024-01790-0

Kun Guo, Petr Pyšek, Milan Chytrý, Jan Divíšek, Martina Sychrová, Zdeňka Lososová, Mark van Kleunen, Simon Pierce, Wen-Yong Guo

{"title":"Stage dependence of Elton’s biotic resistance hypothesis of biological invasions","authors":"Kun Guo, Petr Pyšek, Milan Chytrý, Jan Divíšek, Martina Sychrová, Zdeňka Lososová, Mark van Kleunen, Simon Pierce, Wen-Yong Guo","doi":"10.1038/s41477-024-01790-0","DOIUrl":"https://doi.org/10.1038/s41477-024-01790-0","url":null,"abstract":"Elton’s biotic resistance hypothesis posits that species-rich communities are more resistant to invasion. However, it remains unknown how species, phylogenetic and functional richness, along with environmental and human-impact factors, collectively affect plant invasion as alien species progress along the introduction–naturalization–invasion continuum. Using data from 12,056 local plant communities of the Czech Republic, this study reveals varying effects of these factors on the presence and richness of alien species at different invasion stages, highlighting the complexity of the invasion process. Specifically, we demonstrate that although species richness and functional richness of resident communities had mostly negative effects on alien species presence and richness, the strength and sometimes also direction of these effects varied along the continuum. Our study not only underscores that evidence for or against Elton’s biotic resistance hypothesis may be stage-dependent but also suggests that other invasion hypotheses should be carefully revisited given their potential stage-dependent nature.","PeriodicalId":18904,"journal":{"name":"Nature Plants","volume":null,"pages":null},"PeriodicalIF":18.0,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142123683","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Retrotransposon addiction promotes centromere function via epigenetically activated small RNAs 逆转录转座子成瘾通过表观遗传激活的小RNA促进中心粒功能

IF 18 1区生物学

Nature Plants Pub Date : 2024-09-02 DOI: 10.1038/s41477-024-01773-1

Atsushi Shimada, Jonathan Cahn, Evan Ernst, Jason Lynn, Daniel Grimanelli, Ian Henderson, Tetsuji Kakutani, Robert A. Martienssen

{"title":"Retrotransposon addiction promotes centromere function via epigenetically activated small RNAs","authors":"Atsushi Shimada, Jonathan Cahn, Evan Ernst, Jason Lynn, Daniel Grimanelli, Ian Henderson, Tetsuji Kakutani, Robert A. Martienssen","doi":"10.1038/s41477-024-01773-1","DOIUrl":"https://doi.org/10.1038/s41477-024-01773-1","url":null,"abstract":"Retrotransposons have invaded eukaryotic centromeres in cycles of repeat expansion and purging, but the function of centromeric retrotransposons has remained unclear. In Arabidopsis, centromeric ATHILA retrotransposons give rise to epigenetically activated short interfering RNAs in mutants in DECREASE IN DNA METHYLATION1 (DDM1). Here we show that mutants that lose both DDM1 and RNA-dependent RNA polymerase have pleiotropic developmental defects and mis-segregate chromosome 5 during mitosis. Fertility and segregation defects are epigenetically inherited with centromere 5, and can be rescued by directing artificial small RNAs to ATHILA5 retrotransposons that interrupt tandem satellite repeats. Epigenetically activated short interfering RNAs promote pericentromeric condensation, chromosome cohesion and chromosome segregation in mitosis. We propose that insertion of ATHILA silences centromeric transcription, while simultaneously making centromere function dependent on retrotransposon small RNAs in the absence of DDM1. Parallels are made with the fission yeast Schizosaccharomyces pombe, where chromosome cohesion depends on RNA interference, and with humans, where chromosome segregation depends on both RNA interference and HELLSDDM1.","PeriodicalId":18904,"journal":{"name":"Nature Plants","volume":null,"pages":null},"PeriodicalIF":18.0,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142118098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A centromere’s obsession with transposons 中心粒对转座子的痴迷

IF 18 1区生物学

Nature Plants Pub Date : 2024-09-02 DOI: 10.1038/s41477-024-01724-w

Leandro Quadrana

引用次数: 0

A chemical approach to extend flower longevity of Japanese morning glory via inhibition of master senescence regulator EPHEMERAL1 通过抑制衰老主调节因子 EPHEMERAL1 延长日本牵牛花花期的化学方法

IF 18 1区生物学

Nature Plants Pub Date : 2024-08-29 DOI: 10.1038/s41477-024-01767-z

Kenichi Shibuya, Akira Nozawa, Chikako Takahashi, Tatsuya Sawasaki

引用次数: 0

An RdDM-independent function of Pol V transcripts in gene regulation and plant defence. Pol V 转录本在基因调控和植物防御中的功能与 RdDM 无关。

IF 15.8 1区生物学

Nature Plants Pub Date : 2024-08-26 DOI: 10.1038/s41477-024-01774-0

Yuxiang Yuan, Yujie Liu, Lu Han, Yan Li, Yijun Qi

引用次数: 0

aChIP is an efficient and sensitive ChIP-seq technique for economically important plant organs aChIP 是一种高效、灵敏的 ChIP-seq 技术，适用于具有重要经济价值的植物器官

IF 18 1区生物学

Nature Plants Pub Date : 2024-08-23 DOI: 10.1038/s41477-024-01743-7

Qing Zhang, Wenying Zhong, Guangfeng Zhu, Lulu Cheng, Caijun Yin, Li Deng, Yang Yang, Zhengjing Zhang, Jinxiong Shen, Tingdong Fu, Jian-Kang Zhu, Lun Zhao

{"title":"aChIP is an efficient and sensitive ChIP-seq technique for economically important plant organs","authors":"Qing Zhang, Wenying Zhong, Guangfeng Zhu, Lulu Cheng, Caijun Yin, Li Deng, Yang Yang, Zhengjing Zhang, Jinxiong Shen, Tingdong Fu, Jian-Kang Zhu, Lun Zhao","doi":"10.1038/s41477-024-01743-7","DOIUrl":"https://doi.org/10.1038/s41477-024-01743-7","url":null,"abstract":"Chromatin immunoprecipitation followed by sequencing (ChIP-seq) is crucial for profiling histone modifications and transcription factor binding throughout the genome. However, its application in economically important plant organs (EIPOs) such as seeds, fruits and flowers is challenging due to their sturdy cell walls and complex constituents. Here we present advanced ChIP (aChIP), an optimized method that efficiently isolates chromatin from plant tissues while simultaneously removing cell walls and cellular constituents. aChIP precisely profiles histone modifications in all 14 tested EIPOs and identifies transcription factor and chromatin-modifying enzyme binding sites. In addition, aChIP enhances ChIP efficiency, revealing numerous novel modified sites compared with previous methods in vegetative tissues. aChIP reveals the histone modification landscape for rapeseed dry seeds, highlighting the intricate roles of chromatin dynamics during seed dormancy and germination. Altogether, aChIP is a powerful, efficient and sensitive approach for comprehensive chromatin profiling in virtually all plant tissues, especially in EIPOs.","PeriodicalId":18904,"journal":{"name":"Nature Plants","volume":null,"pages":null},"PeriodicalIF":18.0,"publicationDate":"2024-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142042584","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

aChIP for comprehensive chromatin profiling in economically important plant organs aChIP 用于对具有重要经济价值的植物器官进行染色质综合分析

IF 18 1区生物学

Nature Plants Pub Date : 2024-08-23 DOI: 10.1038/s41477-024-01744-6

引用次数: 0

Discovery of a component of the chloroplast-associated protein degradation system. 发现叶绿体相关蛋白质降解系统的一个组成部分。

IF 15.8 1区生物学

Nature Plants Pub Date : 2024-08-21 DOI: 10.1038/s41477-024-01770-4

引用次数: 0