Tuesday, October 26, 2010

[Paper] An Atlas of Type I MADS Box Gene Expression during Female Gametophyte and Seed Development in Arabidopsis

Authors: Marian Bemer, Klaas Heijmans, Chiara Airoldi, Brendan Davies and Gerco C. Angenent
Source: Plant Physiology (2010) 154:287-300.
Abstract:
Type I的MADS-box基因研究的人比較少,在阿拉伯芥中有61個copies,但是除了PHERES1, AGL80, DIANA, AGL62, AGL23之外,幾乎沒有什麼報導。主要的原因在於大部份T-DNA insertion的mutant沒有什麼phenotype。作者利用系統性的gene expression研究,顯示這些基因大多表現於female gametophyte和早期的seed development。相對於MIKCc-MADS genes,是蠻有意思的比較,也許和世代交替的改變有關連。

[Paper] Computational morphodyamics: a modeling framework to understand plant growth

Authors: Vijay Chickarmane, Adrienne H.K. Roeder, Paul T. Tarr, Alexandre Cunha, Cory Tobin, and Elliot M. Meyerowitz
Source: Annu. Rev. Plant Biology (2010) 61:65
Abstract:
這是一篇有關電腦模擬植物生長模式的review,作者們舉了很多的例子,說明目前modeling的應用性。Computer modeling在近幾年應用在植物生長,自細胞、個體、以至群聚模型上都有很大的進展。在不同參數的選擇下,可以模擬出各種發育的狀況。有興趣的人可以參考如CellModellerOpenAlea等的網站,體驗一下這些新的工具。

[Paper] Land plant life cycle

Authors: Karl J. Niklas and Ulrich Kutschera
Journal: New Phytologist (2010) 185:27
Abstract:
A paper summarized the evolution of life cycle in land plants. 雖然是一篇review,但是在分子證據的解讀上,有一些錯誤,讀的時候要小心。

Wednesday, September 8, 2010

[Paper] Cryptic dioecy in Mussaenda pubescens (Rubiaceae): a species with stigma-height dimorphism

作者Ai-Min Li, Xiao-Qin Wu, Dian-Xiang Zhang, and Spencer C. H. Barrett

出處: Annals of Botany 出版時間尚未確定

摘要

具有distyly特徵的玉葉金花是不是一種隱性的雌雄異株(cryptic dioecy)?本篇文章結果顯示,具有長花柱型者花粉為無性,而短花柱型則不會結實,這代表了兩種花柱型的個體分別具有雌雄的功能。長花柱大孢子與雌配子體可正常發育,而花藥中的tepetal cell會提早瓦解,而導致雄不孕。相反地,短花柱中的小孢子及雄配子體發育正常,而大孢子及雌配子體在發育的各階段皆有退化的現象,無法形成正常的胚囊,雌不孕也因此產生。由此推論,玉葉金花的確是一種隱性的雌雄異株。


Sunday, August 22, 2010

[Paper] GENES IN EVOLUTION

出處:Annals of Botany, 2010, 106: 437-520
摘要:
本卷的主題是 gene in evolution: the control of diversity and speciation,可參考以下內容。

J. S. Pat Heslop-Harrison
Genes in evolution: the control of diversity and speciation
Ann Bot 2010 106: 437-438; doi:10.1093/aob/mcq168.
http://aob.oxfordjournals.org/cgi/content/full/106/3/437?etoc

Loren H. Rieseberg and Benjamin K. Blackman
Speciation genes in plants
Ann Bot 2010 106: 439-455; doi:10.1093/aob/mcq126.
http://aob.oxfordjournals.org/cgi/content/abstract/106/3/439?etoc

Tianhua He, Byron B. Lamont, Siegfried L. Krauss, and Neal J. Enright
Genetic connectivity and inter-population seed dispersal of Banksia
hookeriana at the landscape scale
Ann Bot 2010 106: 457-466; doi:10.1093/aob/mcq140.
http://aob.oxfordjournals.org/cgi/content/abstract/106/3/457?etoc

Naofumi Nomura, Tokushiro Takaso, Ching-I Peng, Yoshiko Kono, Kazuo
Oginuma, Yuki Mitsui, and Hiroaki Setoguchi
Molecular phylogeny and habitat diversification of the genus Farfugium
(Asteraceae) based on nuclear rDNA and plastid DNA
Ann Bot 2010 106: 467-482; doi:10.1093/aob/mcq139.
http://aob.oxfordjournals.org/cgi/content/abstract/106/3/467?etoc

Fabiola Parra, Alejandro Casas, Juan Manuel Penaloza-Ramirez, Aurea C.
Cortes-Palomec, Victor Rocha-Ramirez, and Antonio Gonzalez-Rodriguez
Evolution under domestication: ongoing artificial selection and divergence
of wild and managed Stenocereus pruinosus (Cactaceae) populations in the
Tehuacan Valley, Mexico
Ann Bot 2010 106: 483-496; doi:10.1093/aob/mcq143.
http://aob.oxfordjournals.org/cgi/content/abstract/106/3/483?etoc

Tao Shi, Hongwen Huang, and Michael S. Barker
Ancient genome duplications during the evolution of kiwifruit (Actinidia)
and related Ericales
Ann Bot 2010 106: 497-504; doi:10.1093/aob/mcq129.
http://aob.oxfordjournals.org/cgi/content/abstract/106/3/497?etoc

Juan Guo, Yunsheng Wang, Chi Song, Jianfeng Zhou, Lijuan Qiu, Hongwen
Huang, and Ying Wang
A single origin and moderate bottleneck during domestication of soybean
(Glycine max): implications from microsatellites and nucleotide sequences
Ann Bot 2010 106: 505-514; doi:10.1093/aob/mcq125.
http://aob.oxfordjournals.org/cgi/content/abstract/106/3/505?etoc

Tsutomu Ishimaru, Hideyuki Hirabayashi, Masashi Ida, Toshiyuki Takai,
Yumiko A. San-Oh, Satoshi Yoshinaga, Ikuo Ando, Tsugufumi Ogawa, and
Motohiko Kondo
A genetic resource for early-morning flowering trait of wild rice Oryza
officinalis to mitigate high temperature-induced spikelet sterility at
anthesis
Ann Bot 2010 106: 515-520; doi:10.1093/aob/mcq124.
http://aob.oxfordjournals.org/cgi/content/abstract/106/3/515?etoc

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Thursday, July 22, 2010

[Review] Determination of sexual organ development

作者: Chiara A. Airoldi

摘要:
本篇review是針對目前花部器官決定基因對於性別器官發育調控機制的一個整理報告。分別討論有關調控的時間、空間、蛋白質交互作用及演化等問題進行討論。

Wednesday, July 21, 2010

[Paper] The gynoecium of male Anchietea pyrifolia (Violaceae): Preserved structure with a new function

作者: Matthias H. Hoffmann, Julianade Paula-Souza, AxelFl ¨aschendr¨ager, MartinR¨ oser
出處: Flora, 2010, 205: 429-433

摘要:
Anchietea pyrifolia具有不對稱的花瓣,成為鏡像花中少數藉由鱗翅類授粉的例子。作者研究發現在此物種的雄花中,雌花器表面上仍可正常發育,但是不具有胚珠。而此柱頭當受到刺激或是壓力的影響,能夠分泌黏液。同屬於其他堇菜科的兩性花植物也具有此黏液,主要功能是協助花粉的收集。在Anchietea pyrifolia的雄花中,柱頭分泌黏液主要的功能可能是協助將花粉黏附在授粉者身上,而將pollen傳遞到雌花上。