eprintid: 55169 rev_number: 12 eprint_status: archive userid: 11590 importid: 141 dir: disk0/00/05/51/69 datestamp: 2011-10-20 08:52:07 lastmod: 2022-09-21 17:12:55 status_changed: 2011-10-20 08:52:07 type: article metadata_visibility: show item_issues_count: 0 creators_name: Kamiri, M. creators_name: Stift, M creators_name: Srairi, I. creators_name: Costantino, G. creators_name: Moussadik, A.E. creators_name: Hmyene, A. creators_name: Bakry, F. creators_name: Ollitrault, P. creators_name: Froelicher, Y. title: Evidence for non-disomic inheritance in a Citrus interspecific tetraploid somatic hybrid between C. reticulata and C. limon using SSR markers and cytogenetic analysis ispublished: pub subjects: QK divisions: 20300000 keywords: Citrus, somatic hybrid, meiotic configuration, intermediate inheritance, molecular analysis abstract: Artificial tetraploid somatic hybrids have been developed for sterile triploid citrus breeding by sexual hybridization between diploid and tetraploid somatic hybrids. The genetic structure of diploid gametes produced by tetraploid genotypes depends on the mode of chromosome association at meiosis. In order to evaluate tetraploid inheritance in a tetraploid interspecific somatic hybrid between mandarin and lemon, we performed segregation studies using cytogenetic and single sequence repeat molecular markers. Cytogenetic analysis of meiosis in the somatic hybrid revealed 11% tetravalents and 76% bivalents. Inheritance of the tetraploid hybrid was analyzed by genotyping the triploid progeny derived from a cross between a diploid pummelo and the tetraploid somatic hybrid, in order to derive genotypes of the meiospores produced by the tetraploid. A likelihood-based approach was used to distinguish between disomic, tetrasomic, and intermediate inheritance models and to estimate the double reduction rate. In agreement with expectations based the cytogenetic data, marker segregation was largely compatible with tetrasomic and inheritance intermediate between disomic and tetrasomic, with some evidence for preferential pairing of homoeologous chromosomes. This has important implications for the design of breeding programs that involve tetraploid hybrids, and underscores the need to consider inheritance models that are intermediate between disomic and tetrasomic. date: 2011-08 date_type: published id_number: 10.1007/s00299-011-1050-x official_url: http://dx.doi.org/10.1007/s00299-011-1050-x uniqueid: glaseprints:2011-55169 issn_online: 1432-203X scopus_impact: 9 scopus_cluster: 2-s2.0-79959696773 scopus_datestamp: 2013-10-26 04:12:06 wos_impact: 7 wos_cluster: WOS:000293795100005 wos_datestamp: 2013-10-25 07:05:46 legacy_divisions: L25000000 full_text_status: none publication: Plant Cell Reports volume: 30 number: 8 pagerange: 1415-1425 refereed: TRUE issn: 0721-7714 related_url_url: http://www.ncbi.nlm.nih.gov/pubmed/21409551 related_url_type: pubmed hoa_compliant: 305 hoa_date_pub: 2011-08 hoa_exclude: FALSE hoa_gold: FALSE citation: Kamiri, M., Stift, M , Srairi, I., Costantino, G., Moussadik, A.E., Hmyene, A., Bakry, F., Ollitrault, P. and Froelicher, Y. (2011) Evidence for non-disomic inheritance in a Citrus interspecific tetraploid somatic hybrid between C. reticulata and C. limon using SSR markers and cytogenetic analysis. Plant Cell Reports , 30(8), pp. 1415-1425. (doi: 10.1007/s00299-011-1050-x )