Gautami, B and Fonce´ka, D and Pandey, M K and Sujay, V and Bhanuprakash, A and Shah, T and Nigam, S N and Hoisington, D A and Varshney, R K and et al, . (2012) An International Reference Consensus Genetic Map with 897 Marker Loci Based on 11 Mapping Populations for Tetraploid Groundnut (Arachis hypogaea L.). Plos ONE-Biotechnology, 7 (7). pp. 1-11.
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Abstract
Only a few genetic maps based on recombinant inbred line (RIL) and backcross (BC) populations have been developed for tetraploid groundnut. The marker density, however, is not very satisfactory especially in the context of large genome size (2800 Mb/1C) and 20 linkage groups (LGs). Therefore, using marker segregation data for 10 RILs and one BC population from the international groundnut community, with the help of common markers across different populations, a reference consensus genetic map has been developed. This map is comprised of 897 marker loci including 895 simple sequence repeat (SSR) and 2 cleaved amplified polymorphic sequence (CAPS) loci distributed on 20 LGs (a01–a10 and b01–b10) spanning a map distance of 3, 863.6 cM with an average map density of 4.4 cM. The highest numbers of markers (70) were integrated on a01 and the least number of markers (21) on b09. The marker density, however, was lowest (6.4 cM) on a08 and highest (2.5 cM) on a01. The reference consensus map has been divided into 20 cM long 203 BINs. These BINs carry 1 (a10_02, a10_08 and a10_09) to 20 (a10_04) loci with an average of 4 marker loci per BIN. Although the polymorphism information content (PIC) value was available for 526 markers in 190 BINs, 36 and 111 BINs have at least one marker with >0.70 and >0.50 PIC values, respectively. This information will be useful for selecting highly informative and uniformly distributed markers for developing new genetic maps, background selection and diversity analysis....
| Item Type: | Article |
|---|---|
| Divisions: | UNSPECIFIED |
| CRP: | UNSPECIFIED |
| Uncontrolled Keywords: | Genetic Maps, |
| Subjects: | Mandate crops > Groundnut Others > Genetics and Genomics |
| Depositing User: | Mr Siva Shankar |
| Date Deposited: | 19 Jul 2012 04:50 |
| Last Modified: | 19 Jul 2012 12:11 |
| URI: | http://oar.icrisat.org/id/eprint/6044 |
| Official URL: | http://dx.doi.org/10.1371/journal.pone.0041213 |
| Projects: | UNSPECIFIED |
| Funders: | Generation Challenge Programme(CGIAR) |
| Acknowledgement: | Authors are thankful to Ms. M. Sriswathi for extending her help while preparing this MS. |
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