NDLI: Identification of a Selfing Compatible Genotype and Mode of Inheritance in Switchgrass

Content Provider	Springer Nature Link
Author	Liu, Linglong Wu, Yanqi
Copyright Year	2011
Abstract	Switchgrass (Panicum virgatum L.) is being targeted for use as a dedicated lignocellulosic feedstock crop for producing bioenergy in the United States. The breeding of new switchgrass cultivars with enhanced performance is a research emphasis supporting the targeted use. The species is considered allogamous due to wind facilitated cross-pollination and strong genetic self-incompatibility. Plants typically produce few or no seed when self-fertilized. No attempt has been made to identify selfing-compatible plants that would potentially enable developing inbred lines. Here, using a set of 12 simple sequence repeat-based molecular markers, we identified one lowland plant, ‘NL94 LYE 16 × 13’ (NL94), demonstrating high self-compatibility. A large potted plant of NL94 and a similar size plant of ‘SL93 7 × 15’ were grown in a growth chamber for the purpose of producing a hybrid full-sib mapping population. Marker analyses of 456 progeny from the NL94 plant indicated that 279 (61.2%) and 177 (38.8%) resulted from self- and cross-fertilization, respectively. SSR marker segregation analyses in both the selfed and hybrid progeny populations conclusively indicated disomic inheritance in the two switchgrass parents. Disomic inheritance of switchgrass is significant to the development of switchgrass inbreds as homozygosity is approached much faster via inbreeding under disomic vs. tetrasomic inheritance. Self-compatibility in switchgrass potentially enables the development of inbred lines for use in producing heterotic F1 hybrid cultivars.
Starting Page	662
Ending Page	668
Page Count	7
File Format	PDF
ISSN	19391234
Journal	BioEnergy Research
Volume Number	5
Issue Number	3
e-ISSN	19391242
Language	English
Publisher	Springer-Verlag
Publisher Date	2011-12-23
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Biomass Self-compatibility Disomic inheritance Inbred line Simple sequence repeat (SSR) Switchgrass Plant Ecology Wood Science & Technology Plant Genetics & Genomics Plant Sciences Plant Breeding/Biotechnology
Content Type	Text
Resource Type	Article
Subject	Renewable Energy, Sustainability and the Environment Agronomy and Crop Science

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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
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