PMID- 32973841 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20200928 IS - 1664-462X (Print) IS - 1664-462X (Electronic) IS - 1664-462X (Linking) VI - 11 DP - 2020 TI - Cytogenetic Analysis and Molecular Marker Development for a New Wheat-Thinopyrum ponticum 1J(s) (1D) Disomic Substitution Line With Resistance to Stripe Rust and Powdery Mildew. PG - 1282 LID - 10.3389/fpls.2020.01282 [doi] LID - 1282 AB - Thinopyrum ponticum (2n = 10x = 70), a member of the tertiary gene pool of wheat (Triticum aestivum L.), harbors many biotic and abiotic stress resistance genes. CH10A5, a novel disomic substitution line from a cross of T. aestivum cv. 7182 and Th. ponticum, was characterized by cytogenetic identification, in situ hybridization, molecular marker analysis, and morphological investigation of agronomic traits and disease resistance. Cytological observations showed that CH10A5 contained 42 chromosomes and formed 21 bivalents at meiotic metaphase I. Genome in situ hybridization (GISH) analysis indicated that two of its chromosomes came from the J(s) genome of Th. ponticum, and wheat 15K array mapping and fluorescence in situ hybridization (FISH) revealed that chromosome 1D was absent from CH10A5. Polymorphic analysis of molecular markers indicated that the pair of alien chromosomes belonged to homoeologous group one, designated as 1J(s). Thus, CH10A5 was a wheat-Th. ponticum 1J(s) (1D) disomic substitution line. Field disease resistance trials demonstrated that the introduced Th. ponticum chromosome 1J(s) was probably responsible for resistance to both stripe rust and powdery mildew at the adult stage. Based on specific-locus amplified fragment sequencing (SLAF-seq), 507 STS molecular markers were developed to distinguish chromosome 1J(s) genetic material from that of wheat. Of these, 49 STS markers could be used to specifically identify the genetic material of Th. ponticum. CH10A5 will increase the resistance gene diversity of wheat breeding materials, and the markers developed here will permit further tracing of heterosomal chromosome fragments in the future. CI - Copyright (c) 2020 Wang, Cao, Zhang, Wang, Chen, Wang, Zhang, Wang and Ji. FAU - Wang, Yanzhen AU - Wang Y AD - State Key Laboratory of Crop Stress Biology for Arid Areas and College of Agronomy, Northwest A&F University, Yangling, China. AD - Shaanxi Research Station of Crop Gene Resources and Germplasm Enhancement, Ministry of Agriculture, Yangling, China. FAU - Cao, Qiang AU - Cao Q AD - State Key Laboratory of Crop Stress Biology for Arid Areas and College of Agronomy, Northwest A&F University, Yangling, China. AD - Shaanxi Research Station of Crop Gene Resources and Germplasm Enhancement, Ministry of Agriculture, Yangling, China. FAU - Zhang, Junjie AU - Zhang J AD - State Key Laboratory of Crop Stress Biology for Arid Areas and College of Agronomy, Northwest A&F University, Yangling, China. AD - Shaanxi Research Station of Crop Gene Resources and Germplasm Enhancement, Ministry of Agriculture, Yangling, China. FAU - Wang, Siwen AU - Wang S AD - State Key Laboratory of Crop Stress Biology for Arid Areas and College of Agronomy, Northwest A&F University, Yangling, China. AD - Shaanxi Research Station of Crop Gene Resources and Germplasm Enhancement, Ministry of Agriculture, Yangling, China. FAU - Chen, Chunhuan AU - Chen C AD - State Key Laboratory of Crop Stress Biology for Arid Areas and College of Agronomy, Northwest A&F University, Yangling, China. AD - Shaanxi Research Station of Crop Gene Resources and Germplasm Enhancement, Ministry of Agriculture, Yangling, China. FAU - Wang, Changyou AU - Wang C AD - State Key Laboratory of Crop Stress Biology for Arid Areas and College of Agronomy, Northwest A&F University, Yangling, China. AD - Shaanxi Research Station of Crop Gene Resources and Germplasm Enhancement, Ministry of Agriculture, Yangling, China. FAU - Zhang, Hong AU - Zhang H AD - State Key Laboratory of Crop Stress Biology for Arid Areas and College of Agronomy, Northwest A&F University, Yangling, China. AD - Shaanxi Research Station of Crop Gene Resources and Germplasm Enhancement, Ministry of Agriculture, Yangling, China. FAU - Wang, Yajuan AU - Wang Y AD - State Key Laboratory of Crop Stress Biology for Arid Areas and College of Agronomy, Northwest A&F University, Yangling, China. AD - Shaanxi Research Station of Crop Gene Resources and Germplasm Enhancement, Ministry of Agriculture, Yangling, China. FAU - Ji, Wanquan AU - Ji W AD - State Key Laboratory of Crop Stress Biology for Arid Areas and College of Agronomy, Northwest A&F University, Yangling, China. AD - Shaanxi Research Station of Crop Gene Resources and Germplasm Enhancement, Ministry of Agriculture, Yangling, China. LA - eng PT - Journal Article DEP - 20200821 PL - Switzerland TA - Front Plant Sci JT - Frontiers in plant science JID - 101568200 PMC - PMC7472378 OTO - NOTNLM OT - Bgt SLAF-seq OT - Pst OT - Thinopyrum ponticum OT - wheat 15K array OT - wide hybridization EDAT- 2020/09/26 06:00 MHDA- 2020/09/26 06:01 PMCR- 2020/01/01 CRDT- 2020/09/25 06:02 PHST- 2020/03/06 00:00 [received] PHST- 2020/08/06 00:00 [accepted] PHST- 2020/09/25 06:02 [entrez] PHST- 2020/09/26 06:00 [pubmed] PHST- 2020/09/26 06:01 [medline] PHST- 2020/01/01 00:00 [pmc-release] AID - 10.3389/fpls.2020.01282 [doi] PST - epublish SO - Front Plant Sci. 2020 Aug 21;11:1282. doi: 10.3389/fpls.2020.01282. eCollection 2020.