Interactions among genes Sr2/Yr30, Lr34/Yr18/Sr57 and Lr68 confer enhanced adult plant resistance to rust diseases in common wheat (Triticum aestivum L.) line 'Arula' (Record no. 59632)

000 -LEADER
fixed length control field 00595nab|a22002177a|4500
001 - CONTROL NUMBER
control field 59632
003 - CONTROL NUMBER IDENTIFIER
control field MX-TxCIM
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20190902222352.0
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 180708s2018||||at |||p|op||||00||0|eng|d
022 ## - INTERNATIONAL STANDARD SERIAL NUMBER
International Standard Serial Number 1835-2707
024 8# - OTHER STANDARD IDENTIFIER
Standard number or code https://doi.org/10.21475/ajcs.18.12.06.PNE1305
040 ## - CATALOGING SOURCE
Original cataloging agency MX-TxCIM
041 ## - LANGUAGE CODE
Language code of text/sound track or separate title eng
100 1# - MAIN ENTRY--PERSONAL NAME
Personal name Randhawa, M.S.
Field link and sequence number I1706569
9 (RLIN) 1665
Miscellaneous information Global Wheat Program
245 1# - TITLE STATEMENT
Title Interactions among genes Sr2/Yr30, Lr34/Yr18/Sr57 and Lr68 confer enhanced adult plant resistance to rust diseases in common wheat (Triticum aestivum L.) line 'Arula'
Medium [Electronic Resource]
260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)
Place of publication, distribution, etc. Australia :
Name of publisher, distributor, etc. Southern Cross Publishing,
Date of publication, distribution, etc. 2018.
500 ## - GENERAL NOTE
General note Open Access
520 ## - SUMMARY, ETC.
Summary, etc. Common wheat line Arula displays an acceptable level of adult plant resistance (APR) to stripe rust (YR), leaf rust (LR) and stem rust (SR) in Mexico, and to SR (Ug99 races) in Kenya. Present study was conducted to identify genetic loci that confer resistance in Arula and to understand their interactions for rust resistance. A recombinant inbred line (RIL) population (190 lines) developed from the cross of Arula with susceptible parent Apav was phenotyped under artificially created epidemics of the three rusts in 2014, 2015 and 2016 in Mexico, and for stem rust (Ug99) during the off and main seasons of 2015 in Kenya. The RIL population and parents were genotyped with Sr2/Yr30-linked simple sequence repeat (SSR) marker gwm533 and two sequence tagged site (STS) markers (Lr34/Yr18/Sr57-csLV34 and Lr68-csGS) in addition to genotyping using Illumina iSelect 90K SNP array. A genetic map of 2,634 polymorphic markers (2,631 SNPs, 1 SSR and 2 STS markers) was constructed to locate the resistance loci. Composite interval mapping (CIM) was conducted to identify quantitative trait loci (QTL) associated with rust resistance using phenotypic and genotypic data in Windows QTL cartographer version 2.5. Two consistent QTL contributed by Arula were detected on chromosomes 3BS and 7DS, which corresponded to the previously known APR genes Sr2/Yr30 and Lr34/Yr18/Sr57, respectively. Sr2/Yr30 explained 1.1-14.7% and 41.0-61.5% of the phenotypic variation for YR and SR, respectively; whereas Lr34/Yr18/Sr57 accounted for 22.5-78.0%, 40.0-84.3% and 13.8-24.8% of the phenotypic variation for YR, LR and SR, respectively. Arula was also found to carry the positive allele for marker csGS closely linked to gene Lr68 on chromosome 7BL, although this gene was not detected using CIM. Based on presence or absence of identified genes/QTLs, lines were classified into different groups and t-tests were used to compare the mean relative area under disease progress curve (relAUDPC) over years of different gene combinations. RILs carrying both Lr34/Yr18/Sr57 and Lr68 showed significantly higher APR to LR showing the benefit of gene combination Lr34/Yr18/Sr57 + Lr68. Our results show that RILs possessing both Sr2/Yr30 and Lr34/Yr18/Sr57 had significantly enhanced APR to all three rusts in field trials conducted in Mexico and Kenya. Strategic utilization of these two pleiotropic, multi-pathogen resistance genes with other minor genes is recommended to develop durable rust resistant wheat cultivars.
546 ## - LANGUAGE NOTE
Language note Text in English
591 ## - CATALOGING NOTES
Number of CIMMYT Informa CIMMYT Informa : 2018 (August 30, 2018)
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
Source of heading or term AGROVOC
9 (RLIN) 1130
Topical term or geographic name as entry element Genetics
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
Source of heading or term AGROVOC
9 (RLIN) 1296
Topical term or geographic name as entry element Triticum aestivum
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
Source of heading or term AGROVOC
9 (RLIN) 1134
Topical term or geographic name as entry element Genotypes
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
Source of heading or term AGROVOC
9 (RLIN) 1251
Topical term or geographic name as entry element Rusts
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
Source of heading or term AGROVOC
9 (RLIN) 1853
Topical term or geographic name as entry element Quantitative Trait Loci
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
Source of heading or term AGROVOC
9 (RLIN) 1213
Topical term or geographic name as entry element Plant response
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
Source of heading or term AGROVOC
9 (RLIN) 3980
Topical term or geographic name as entry element Puccinia recondita
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
Source of heading or term AGROVOC
9 (RLIN) 2130
Topical term or geographic name as entry element Puccinia graminis
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
9 (RLIN) 1842
Topical term or geographic name as entry element Puccinia striiformis
Source of heading or term AGROVOC
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Caixia Lan
Field link and sequence number INT3206
9 (RLIN) 901
Miscellaneous information Global Wheat Program
700 1# - ADDED ENTRY--PERSONAL NAME
9 (RLIN) 967
Personal name Basnet, B.R.
Miscellaneous information Global Wheat Program
Field link and sequence number INT3524
700 1# - ADDED ENTRY--PERSONAL NAME
9 (RLIN) 867
Personal name Bhavani, S.
Miscellaneous information Global Wheat Program
Field link and sequence number INT2843
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Huerta-Espino, J.
9 (RLIN) 397
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Forrest, K.L.
9 (RLIN) 4682
700 1# - ADDED ENTRY--PERSONAL NAME
9 (RLIN) 1679
Personal name Hayden, M.
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Singh, R.P.
Field link and sequence number INT0610
9 (RLIN) 825
Miscellaneous information Global Wheat Program
773 0# - HOST ITEM ENTRY
Title Australian Journal of Crop Science
Related parts v. 12, no. 6, p. 1023-1033
Place, publisher, and date of publication Southern Cross Publishing, 2018
856 4# - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier https://hdl.handle.net/10883/19544
Link text Open Access through DSpace
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha item type Article
Source of classification or shelving scheme
Suppress in OPAC 0
Holdings
Withdrawn status Lost status Source of classification or shelving scheme Damaged status Not for loan Collection code Permanent Location Current Location Date acquired Date last seen Price effective from Koha item type
  Not Lost       CIMMYT Staff Publications Collection CIMMYT Knowledge Center: John Woolston Library CIMMYT Knowledge Center: John Woolston Library 2018-07-08 2018-07-08 2018-07-08 Article
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