Drought-responsive miRNAs in plants: a review

Yıl 2022, , 150 - 157, 28.06.2022

Guzin Tombuloglu

https://doi.org/10.46460/ijiea.1024235

Cited By: 2

Öz

MicroRNAs (miRNAs) are known as single-stranded RNA molecule functional in all steps of plant life including growth, development, and stress responses. Plant genomes harbor hundreds of miRNAs, which have diverse functions in regulating numerous biological processes. After being first discovered in plants by the year 2002, thousands of plant miRNAs have been identified so far. With the help of recent advances in high-throughput sequencing technologies, genome and transcriptome-wide screening of miRNAs in specific conditions and in a variety of plants has been conducted. Among the challenging conditions that inversely affect plants, drought stress is one of the main factors limiting plant growth and productivity worldwide. So far, drought-responsive miRNAs have been uncovered in particular plants. Moreover, functional characterizations of some miRNAs provide insights into their role in drought regulatory mechanisms. This review summarizes the most recent findings on miRNA-based drought stress regulation of plants. The study provides insights about role of miRNAs in drought stress response of plant.

Anahtar Kelimeler

miRNA, drought, tolerance, gene regulation, plant response

Bitkilerde kuraklığa duyarlı miRNA'lar: derleme

Öz

MikroRNA'lar (miRNA'lar), bitki yaşamının büyüme, gelişme ve stres yanitlari olmak üzere tüm aşamalarinda fonksiyonel olan tek iplikli RNA molekülü olarak bilinir. Bitki genomları, sayısız biyolojik süreci düzenlemede çeşitli fonksiyonlari olan yüzlerce miRNA'yı barındırır. Bitkilerde ilk kez 2002 yılında keşfedildikten sonra, bugüne kadar binlerce bitki miRNA'sı tanımlanmıştır. Yüksek verimli dizileme teknolojilerindeki son gelişmelerin yardımıyla, belirli koşullardaki çeşitli bitkilerde miRNA'ların genom ve transkriptom düzeyinde taranması gerçekleştirilmiştir. Bitkileri olumsuz etkileyen koşullardan kuraklık stresi, dünya çapında bitki büyümesini ve üretkenliğini sınırlayan başlica faktörlerden biridir. Bugüne kadar, belirli bitkilerde kuraklığa duyarlı miRNA'lar ortaya çıkarılmıştır. Ayrıca, bazı miRNA'ların fonksiyonel karakterizasyonları, kuraklığı düzenleyici mekanizmalardaki rolleri hakkında bilgi sağlamaktadır. Bu derleme, bitkilerin miRNA tabanlı kuraklık stresi regulasyonuna ilişkin en son bulguları özetlemektedir. Çalışma, bitkinin kuraklık stresi yanıtında miRNA'ların rolü hakkında fikir vermektedir.

Anahtar Kelimeler

miRNA, kuraklik, tolerans, gen regülasyonu, bitki yaniti

Kaynakça

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