PMID- 33663390
OWN - NLM
STAT- MEDLINE
DCOM- 20210317
LR  - 20210317
IS  - 1471-2229 (Electronic)
IS  - 1471-2229 (Linking)
VI  - 21
IP  - 1
DP  - 2021 Mar 4
TI  - Characterization of chromosome constitution in three wheat - Thinopyrum 
      intermedium amphiploids revealed frequent rearrangement of alien and wheat 
      chromosomes.
PG  - 129
LID - 10.1186/s12870-021-02896-9 [doi]
LID - 129
AB  - BACKGROUND: Thinopyrum intermedium (2n = 6x = 42) is an important wild perennial 
      Triticeae species exhibiting many potentially favorable traits for wheat 
      improvement. Wheat-Th. intermedium partial amphiploids serve as a bridge to 
      transfer desirable genes from Th. intermedium into common wheat. RESULTS: Three 
      octoploid Trititrigia accessions (TE261-1, TE266-1, and TE346-1) with good 
      resistances to stripe rust, powdery mildew and aphids were selected from hybrid 
      progenies between Th. intermedium and the common wheat variety 'Yannong 15' 
      (YN15). Genomic in situ hybridization (GISH), fluorescence in situ hybridization 
      (FISH) and multicolor GISH (McGISH) analyses demonstrated that the three 
      octoploid Trititrigia possess 42 wheat chromosomes and 14 Th. intermedium 
      chromosomes. The 14 alien (Th. intermedium) chromosomes belong to a mixed genome 
      consisting of J-, J(S)- and St-genome chromosomes rather than a single J, J(S) or 
      St genome. Different types of chromosomal structural variation were also detected 
      in the 1A, 6A, 6B, 2D and 7D chromosomes via FISH, McGISH and molecular marker 
      analysis. The identity of the alien chromosomes and the variationes in the wheat 
      chromosomes in the three Trititrigia octoploids were also different. CONCLUSIONS: 
      The wheat-Th. intermedium partial amphiploids possess 14 alien chromosomes which 
      belong to a mixed genome consisting of J-, J(S)- and St- chromosomes, and 42 
      wheat chromosomes with different structural variations. These accessions could be 
      used as genetic resources in wheat breeding for the transfer of disease and pest 
      resistance genes from Th. intermedium to common wheat.
FAU - Cui, Yu
AU  - Cui Y
AD  - State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agriculture 
      University, Tai'an, 271018, Shandong, China.
FAU - Xing, Piyi
AU  - Xing P
AD  - State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agriculture 
      University, Tai'an, 271018, Shandong, China.
FAU - Qi, Xiaolei
AU  - Qi X
AD  - Tai'an Academy of Agricultural Science, Tai'an, 271000, China.
FAU - Bao, Yinguang
AU  - Bao Y
AD  - State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agriculture 
      University, Tai'an, 271018, Shandong, China.
FAU - Wang, Honggang
AU  - Wang H
AD  - State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agriculture 
      University, Tai'an, 271018, Shandong, China.
FAU - Wang, Richard R-C
AU  - Wang RR
AD  - USDA-ARS Forage & Range Research Laboratory, Logan, UT, 84322-6300, USA.
FAU - Li, Xingfeng
AU  - Li X
AD  - State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agriculture 
      University, Tai'an, 271018, Shandong, China. lixf@sdau.edu.cn.
LA  - eng
GR  - 2016YFD0102000/National Key Research and Development Program of China/
GR  - 31671675/National Natural Science Foundation of China/
PT  - Journal Article
DEP - 20210304
PL  - England
TA  - BMC Plant Biol
JT  - BMC plant biology
JID - 100967807
SB  - IM
MH  - *Chromosomes, Plant
MH  - Disease Resistance/genetics
MH  - *Gene Rearrangement
MH  - Genes, Plant
MH  - Hybridization, Genetic
MH  - Plant Breeding
MH  - Plant Diseases
MH  - Poaceae/*genetics
MH  - Polyploidy
MH  - Triticum/*genetics
PMC - PMC7931331
OTO - NOTNLM
OT  - Amphiploid
OT  - In situ hybridization
OT  - Molecular markers
OT  - Th. Intermedium
COIS- The authors declare that they have no conflict of interests.
EDAT- 2021/03/06 06:00
MHDA- 2021/03/18 06:00
PMCR- 2021/03/04
CRDT- 2021/03/05 05:38
PHST- 2020/11/21 00:00 [received]
PHST- 2021/02/21 00:00 [accepted]
PHST- 2021/03/05 05:38 [entrez]
PHST- 2021/03/06 06:00 [pubmed]
PHST- 2021/03/18 06:00 [medline]
PHST- 2021/03/04 00:00 [pmc-release]
AID - 10.1186/s12870-021-02896-9 [pii]
AID - 2896 [pii]
AID - 10.1186/s12870-021-02896-9 [doi]
PST - epublish
SO  - BMC Plant Biol. 2021 Mar 4;21(1):129. doi: 10.1186/s12870-021-02896-9.