NDLI: Transmission electron microscopy and serial reconstructions reveal novel meiotic phenotypes for the ahp2 mutant of Arabidopsis thaliana.

Please wait, while we are loading the content...

Year: 2013 Volume: 56 Issue: 12

Year: 2013 Volume: 56 Issue: 11

Year: 2013 Volume: 56 Issue: 10

Year: 2013 Volume: 56 Issue: 9

Year: 2013 Volume: 56 Issue: 8

Year: 2013 Volume: 56 Issue: 7

Year: 2013 Volume: 56 Issue: 6

Year: 2013 Volume: 56 Issue: 5

Year: 2013 Volume: 56 Issue: 4

Year: 2013 Volume: 56 Issue: 3

Genomic and chromosomal distribution patterns of various repeated DNA sequences in wheat revealed by a fluorescence in situ hybridization procedure.

Transmission electron microscopy and serial reconstructions reveal novel meiotic phenotypes for the ahp2 mutant of Arabidopsis thaliana.

Finding of IFNÎ³ gene enhancers and their core sequences.

Cytogenetic characterization by in situ hybridization techniques and molecular analysis of 5S rRNA genes of the European hazelnut (Corylus avellana).

Genome-wide analysis of microRNAs expression profiling in patients with primary IgA nephropathy.

Generation and identification of Brassica alboglabra-Brassica campestris monosomic alien addition lines.

The B-hordein prolamin family of barley.

Year: 2013 Volume: 56 Issue: 2

Year: 2013 Volume: 56 Issue: 1

Transmission electron microscopy and serial reconstructions reveal novel meiotic phenotypes for the ahp2 mutant of Arabidopsis thaliana.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Pathan, Nazia Stronghill, Patti Hasenkampf, Clare
Description	Country affiliation: Canada Author Affiliation: Pathan N ( Department of Biological Science, University of Toronto (Scarborough), Scarborough, ON M1C 1A4, Canada.)
Abstract	We have found novel phenotypes for the previously studied Arabidopsis thaliana (L.) Heynh. meiotic mutant ahp2. These phenotypes were revealed by analysis of reconstructions of normal and ahp2 nuclei that were imaged using transmission electron microscopy. Previous studies of the ahp2 mutant demonstrated that it has a general failure to form synaptonemal complexes, except for the nucleolus organizing regions, and it fails to complete reciprocal genetic exchange. Here, we show that even though the ahp2 chromosome axes have only 5% of the normal amount of synaptonemal complex formation, it nonetheless has slightly more than 40% of the axes involved in close alignment. We also observed two striking nuclear envelope associated abnormalities. Wild type nuclei contain two nucleoli, one nucleolus-like structure, and nuclear envelope associated structures that we refer to as nuclear envelope associated disks. The ahp2 nuclei have the two nucleoli, but they lack the third nucleolus-like structure and instead have a previously uncharacterized structure that spans the nuclear envelope. Additionally, ahp2 meiocytes have nuclear envelope associated disks that are narrower and more numerous (â¼2×) than those seen in wild type, and unlike the wild type disks, they are in direct contact with the nuclear envelope.
File Format	HTM / HTML
ISSN	08312796
e-ISSN	14803321
Journal	Genome
Issue Number	3
Volume Number	56
Language	English
Publisher	Canadian Science Publishing
Publisher Date	2013-03-01
Publisher Place	Canada
Access Restriction	Open
Subject Keyword	Discipline Genetics Arabidopsis Proteins Genetics Arabidopsis Meiosis Microscopy, Electron, Transmission Mutation Phosphotransferases Cell Nucleolus Ultrastructure Cell Nucleus Chromosome Pairing Nuclear Envelope Plants, Genetically Modified Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Genetics Medicine Molecular Biology Biotechnology

Central Library (ISO-9001:2015 Certified)
Indian Institute of Technology Kharagpur
Kharagpur, West Bengal, India | PIN - 721302

See location in the Map
03222 282435
Mail: support@ndl.gov.in

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in