PMID- 15843637 OWN - NLM STAT- MEDLINE DCOM- 20051209 LR - 20240109 IS - 0022-1503 (Print) IS - 0022-1503 (Linking) VI - 96 IP - 4 DP - 2005 Jul-Aug TI - Genetic analysis of the species cytoplasm specific gene (scs d) derived from durum wheat. PG - 404-9 AB - The action of species cytoplasm specific (scs) gene(s) can be observed when a durum (Triticum turgidum L.) nucleus is placed in the Aegilops longissimum S. & M. cytoplasm. This alloplasmic combination, (lo) durum, results in nonviable progeny. A scs gene derived from T. timopheevii Zhuk. (scs(ti)) produced compatibility with the (lo) cytoplasm. The resulting hemizygous (lo) scs(ti)- durum line was male sterile and when crossed to normal durum produced a 1:1 ratio of plump, viable (PV) seeds with scs(ti) and shriveled inviable (SIV) seeds without scs(ti). In a systematic characterization of durum lines an unusual line was identified that when crossed to (lo) scs(ti)- produced all PV seeds. When planted these PV seeds segregated at a 1:1 ratio of normal vigor plants (NVPs) and low vigor plants (LVPs). The LVP senescence before full maturity. The NVPs were male sterile and when crossed to common durum lines resulted in all plump seeds that again segregated at a 1:1 ratio of NVPs to LVPs. The crosses of these NVPs to common durum lines resulted in a 1:1 ratio of PV to SIV seeds. This study was extended to 317 individuals segregating for scs(ti) and the new locus, derived from durum wheat (scs(d)), establishing the allelic relationship of these two genes. FAU - Gehlhar, S B AU - Gehlhar SB AD - Department of Plant Sciences, 470G Loftsgard Hall, North Dakota State University, Fargo, ND 58105, USA. FAU - Simons, K J AU - Simons KJ FAU - Maan, S S AU - Maan SS FAU - Kianian, S F AU - Kianian SF LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, Non-P.H.S. DEP - 20050420 PL - United States TA - J Hered JT - The Journal of heredity JID - 0375373 SB - IM MH - Crosses, Genetic MH - Cytoplasm/genetics MH - Genes, Plant/*genetics MH - Hybrid Vigor MH - Triticum/*genetics EDAT- 2005/04/22 09:00 MHDA- 2005/12/13 09:00 CRDT- 2005/04/22 09:00 PHST- 2005/04/22 09:00 [pubmed] PHST- 2005/12/13 09:00 [medline] PHST- 2005/04/22 09:00 [entrez] AID - esi054 [pii] AID - 10.1093/jhered/esi054 [doi] PST - ppublish SO - J Hered. 2005 Jul-Aug;96(4):404-9. doi: 10.1093/jhered/esi054. Epub 2005 Apr 20.