PMID- 30984289 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20231006 IS - 1755-8166 (Print) IS - 1755-8166 (Electronic) IS - 1755-8166 (Linking) VI - 12 DP - 2019 TI - The karyotype of Aegilops geniculata and its use to identify both addition and substitution lines of wheat. PG - 15 LID - 10.1186/s13039-019-0428-2 [doi] LID - 15 AB - BACKGROUND: The annual allotetraploid species Aegilops geniculata harbors a number of traits relevant for wheat improvement. An effective cytogenetic method has yet to be developed to distinguish between each of its 14 chromosomes. RESULTS: A fluorescence in situ hybridization (FISH) approach was adopted to describe the karyotype of Ae. geniculata. Each of its 14 chromosomes was unequivocally recognized using a cocktail of three probes, namely pTa-713, (AAC)(5) and pTa71. FISH karyotyping was then used to detect and characterize selections from an Ae. geniculata x bread wheat wide cross of a chromosome 1M(g) disomic addition line and three 4M(g)(4B) substitution lines. The identity of the addition line was confirmed by the presence of Glu-M1, detected both using an SDS-PAGE separation of endosperm proteins and by applying a PCR assay directed at the Glu-M1 locus. The status of the substitution lines was validated by genotyping using a wheat single nucleotide polymorphism chip. CONCLUSION: FISH karyotyping based on pTa-713, (AAC)(5) and pTa71 will be useful for determining the contribution of Ae. geniculata to derivatives of an Ae. geniculata x wheat wide cross. SNP chip-based genotyping is effective for confirming the status of whole chromosome wheat/alien substitution lines. FAU - Yi, Yingjin AU - Yi Y AD - Triticeae Research Institute, Sichuan Agricultural University, Chengdu, 611130 Sichuan China. ISNI: 0000 0001 0185 3134. GRID: grid.80510.3c FAU - Zheng, Ke AU - Zheng K AD - Triticeae Research Institute, Sichuan Agricultural University, Chengdu, 611130 Sichuan China. ISNI: 0000 0001 0185 3134. GRID: grid.80510.3c FAU - Ning, Shunzong AU - Ning S AD - Triticeae Research Institute, Sichuan Agricultural University, Chengdu, 611130 Sichuan China. ISNI: 0000 0001 0185 3134. GRID: grid.80510.3c FAU - Zhao, Laibin AU - Zhao L AD - Triticeae Research Institute, Sichuan Agricultural University, Chengdu, 611130 Sichuan China. ISNI: 0000 0001 0185 3134. GRID: grid.80510.3c FAU - Xu, Kai AU - Xu K AD - Triticeae Research Institute, Sichuan Agricultural University, Chengdu, 611130 Sichuan China. ISNI: 0000 0001 0185 3134. GRID: grid.80510.3c FAU - Hao, Ming AU - Hao M AD - Triticeae Research Institute, Sichuan Agricultural University, Chengdu, 611130 Sichuan China. ISNI: 0000 0001 0185 3134. GRID: grid.80510.3c FAU - Zhang, Lianquan AU - Zhang L AD - Triticeae Research Institute, Sichuan Agricultural University, Chengdu, 611130 Sichuan China. ISNI: 0000 0001 0185 3134. GRID: grid.80510.3c FAU - Yuan, Zhongwei AU - Yuan Z AD - Triticeae Research Institute, Sichuan Agricultural University, Chengdu, 611130 Sichuan China. ISNI: 0000 0001 0185 3134. GRID: grid.80510.3c FAU - Liu, Dengcai AU - Liu D AUID- ORCID: 0000-0001-5508-1125 AD - Triticeae Research Institute, Sichuan Agricultural University, Chengdu, 611130 Sichuan China. ISNI: 0000 0001 0185 3134. GRID: grid.80510.3c LA - eng PT - Journal Article DEP - 20190402 PL - England TA - Mol Cytogenet JT - Molecular cytogenetics JID - 101317942 PMC - PMC6446333 OTO - NOTNLM OT - Addition line OT - Fluorescence in situ hybridization OT - Single nucleotide polymorphism OT - Substitution line COIS- Not applicable.Not applicable.The authors declare that they have no competing interests.Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations. EDAT- 2019/04/16 06:00 MHDA- 2019/04/16 06:01 PMCR- 2019/04/02 CRDT- 2019/04/16 06:00 PHST- 2018/12/24 00:00 [received] PHST- 2019/03/26 00:00 [accepted] PHST- 2019/04/16 06:00 [entrez] PHST- 2019/04/16 06:00 [pubmed] PHST- 2019/04/16 06:01 [medline] PHST- 2019/04/02 00:00 [pmc-release] AID - 428 [pii] AID - 10.1186/s13039-019-0428-2 [doi] PST - epublish SO - Mol Cytogenet. 2019 Apr 2;12:15. doi: 10.1186/s13039-019-0428-2. eCollection 2019.