植物学. 植物学. 植物学. 寄生植物と宿主との間のmRNAのゲノムスケール交換

Gunjune Kim¹, Megan L LeBlanc¹, Eric K Wafula²

¹Department of Plant Pathology, Physiology and Weed Science, Virginia Tech, Blacksburg, VA 24061, USA.

Science (New York, N.Y.)

|August 16, 2014

まとめ

ドッダーのような寄生植物は,メッセンジャーRNA (mRNA) を宿主植物に転送し,その逆もできます. この双方向の交換には数千の遺伝子が関与し,広範な種間RNA通信を明らかにしています.

科学分野:

植物生物学植物生物学
分子生物学は分子生物学である.
遺伝学遺伝学とは

背景:

単一の植物内のRNAの動きは知られている.
植物間での種間RNA転送は,ほとんど研究されていない.
寄生植物は宿主とつながり,宿主分子を吸収することができます.

研究の目的:

寄生植物Cuscuta pentagonaとその宿主 (アラビドプシスとトマト) の間のメッセンジャーRNA (mRNA) 移転を調査する.
種間のmRNA交換の範囲と方向性を特徴付けるために.

主な方法:

アラビドプシスとトマトで育ったCuscuta pentagonaのトランスクリプトーム配列解析.
寄生虫の移植された宿主mRNAを特定し,定量化するためのバイオ情報分析.

主要な成果:

Cuscutaと宿主との間で,高容量,双方向的なmRNA転送が観察されました.
何千もの異なる遺伝子が,移動性トランスクリプトによって表現されていました.
アラビドプシスの発現したトランスクリプトームのほぼ半分がクスクタで検出されました.

結論:

寄生植物は,宿主植物とトランスクリプトームの相当な部分を交換することができます.
この種間RNA転送は,種間の新しいRNAベースの相互作用を促進する可能性があります.
この発見は,RNA分子を介して水平遺伝子転送の潜在的なメカニズムを示唆しています.

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