Reach Us +443308186230


Molecular And Cytological Studies On Pollen Development In Autotetraploid Rice | 105053
ISSN: 2329-8863

Advances in Crop Science and Technology
Open Access

Our Group organises 3000+ Global Conferenceseries Events every year across USA, Europe & Asia with support from 1000 more scientific Societies and Publishes 700+ Open Access Journals which contains over 50000 eminent personalities, reputed scientists as editorial board members.

Open Access Journals gaining more Readers and Citations
700 Journals and 15,000,000 Readers Each Journal is getting 25,000+ Readers

This Readership is 10 times more when compared to other Subscription Journals (Source: Google Analytics)
Recommended Conferences

4th Global summit on Agriculture & Organic farming

Amsterdam, Netherlands

16th International Conference on Plant Genomics

Barcelona, Spain

19th Annual Conference on Crop Science and Agriculture

Bali, Indonesia
Google Scholar citation report
Citations : 2773

Advances in Crop Science and Technology received 2773 citations as per Google Scholar report

Advances in Crop Science and Technology peer review process verified at publons
Indexed In
  • CAS Source Index (CASSI)
  • Index Copernicus
  • Google Scholar
  • Sherpa Romeo
  • Online Access to Research in the Environment (OARE)
  • Open J Gate
  • Academic Keys
  • JournalTOCs
  • Access to Global Online Research in Agriculture (AGORA)
  • RefSeek
  • Hamdard University
  • OCLC- WorldCat
  • Scholarsteer
  • SWB online catalog
  • Publons
  • Euro Pub
Share This Page

Molecular and cytological studies on pollen development in autotetraploid rice

4th International Conference on Plant Genomics

Muhammad Qasim Shahid and Liu Xiang-Dong

South China Agricultural University, China

ScientificTracks Abstracts: Adv Crop Sci Tech

DOI: 10.4172/2329-8863.C1.002

Autotetraploid rice has a great genetic potential to increase the rice production but lower pollen fertility is a major barrier in its utilization. Intersubspecific autotetraploid rice hybrids showed greater genetic variation compared to their diploid counterparts. Here, we observed the pollen development and its relation with seed set in autotetraploid rice. Microgametogenesis in autotetraploid rice was similar to diploid rice but different kinds of abnormalities, including microspores degeneration, cytoplasm shrinkage and abnormal cell walls were found in autotetraploid rice. Many different kinds of chromosomal abnormalities were found during various development stages of pollen mother cell meiosis such as chromosome lagging, chromosome straggling, pre-separation of two chromosome set, randomly arranged chromosome on the equator, abnormal spindle and incomplete/no separation of cytokinesis. We identified 55 meiosis related or meiosis stage specific genes and 7 genes related with photosynthesis system I that were downregulated in autotetraploid rice. Gene ontology analysis on the targets of up-regulated DEM showed that they were enriched in transport and membrane in pre-meiotic interphase, reproduction in meiosis and nucleotide binding in single microspore stage. Quantitative RT-PCR was used to validate differentially expressed genes and microRNAs selected from functional categories based on the gene ontology analysis. The results showed that their expression patterns were consistent with the microarray data and highthroughput sequencing, respectively. These stably expressed genes not only related to the pollen development genes but also involved in cell metabolism, cell physiology, binding, catalytic activity, molecular transducer activity and transcription regulator activity. These findings provide a foundation for understanding the effect of polyploidy on meiosis related genes and miRNAs expression patterns during pollen development that lead to low pollen fertility in autotetraploid rice.

Muhammad Qasim Shahid has completed his PhD from South China Agricultural University and Postdoctoral studies from South China Agricultural University and Istanbul University. He is working as an Associate Professor in South China Agricultural University. He has published more than 25 papers in reputed journals such as Plant Physiology, Journal of Experimental Botany, PLOS ONE and Crop Science.

E-mail: [email protected]


Peer Reviewed Journals

Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals

Clinical & Medical Journals

Dersleri yüzünden oldukça stresli bir ruh haline sikiş hikayeleri bürünüp özel matematik dersinden önce rahatlayabilmek için amatör pornolar kendisini yatak odasına kapatan genç adam telefonundan porno resimleri açtığı porno filmini keyifle seyir ederek yatağını mobil porno okşar ruh dinlendirici olduğunu iddia ettikleri özel sex resim bir masaj salonunda çalışan genç masör hem sağlık hem de huzur sikiş için gelip masaj yaptıracak olan kadını gördüğünde porn nutku tutulur tüm gün boyu seksi lezbiyenleri sikiş dikizleyerek onları en savunmasız anlarında fotoğraflayan azılı erkek lavaboya geçerek fotoğraflara bakıp koca yarağını keyifle okşamaya başlar