Knowledge Center Catalog

Identification of QTLs associated with adult plant resistance to stem rust race Ug99 in the 'Avocet' x 'Pavon76' recombinant inbred line population (Record no. 8108)

MARC details
000 -LEADER
fixed length control field 02692nam a22003137a 4500
001 - CONTROL NUMBER
control field G95058
003 - CONTROL NUMBER IDENTIFIER
control field MX-TxCIM
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20240919020958.0
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 121211s ||||f| 0 p|p||0|| |
040 ## - CATALOGING SOURCE
Original cataloging agency MX-TxCIM
090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN)
Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) CIS-6339
100 1# - MAIN ENTRY--PERSONAL NAME
Personal name Njau, P.N.
Affiliation BGRI Technical Workshop, Oral Presentations Poster Abstracts Participants and Program; Minnesota (USA); 13-16 Jun 2011
9 (RLIN) 2089
245 00 - TITLE STATEMENT
Title Identification of QTLs associated with adult plant resistance to stem rust race Ug99 in the 'Avocet' x 'Pavon76' recombinant inbred line population
260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)
Date of publication, distribution, etc. 2011
300 ## - PHYSICAL DESCRIPTION
Extent p. 189
500 ## - GENERAL NOTE
General note Abstract only
520 ## - SUMMARY, ETC.
Summary, etc. Stem rust, caused by Puccinia graminis f. sp. Tritici (Pgt), has historically caused severe losses to wheat production worldwide, but was effectively controlled by resistance for almost 30 years. However, stem rust re-emerged in 1998 in eastern Africa in the form of race Ug99. Furthermore, it has u ndergone changes to produce separate variants with added virulence to resistance genes Sr24 and Sr36. The lineage is once again threatening the global wheat crop. The objective of our study was to identify genomic regions contributing to APR to stem rust in ?Pavon 76?. A recombinant inbred line (RIL) population of 298 lines was previously developed at CIMMYT from a cross between ?Avocet S? and ?Pavon 76. The RILs segregated for APR to Ug99 when evaluated in Kenya for three years. Single year and combined year analyses by inclusive composite interval mapping using 450 DArT markers identified six quantitative trait loci (QTLs) contributing to resistance . avon 76? contributed three QTLs, Sr2-linked QSr.cim-3B-1, Lr46/Yr29/Pm39- linked QSr.cim-1B and QSr.cim-3D (possibly an ortholog of Sr2), which explained 32%, 24% and 20% of the phenotypic variance, respectively. The remaining three QTLs, QSr.cim-3B-2, QSr.cim-4B and QSr.cim-5A, were contributed by ?Avocet? and explained 24%, 8% and 6% of the phenotypic variance, respectively. Our results indicate that it is possible to accumulate several minor genes (each with a small-to-intermediate effect) to produce a variety that exhibits negligible disease levels even under high stem rust pressure.
536 ## - FUNDING INFORMATION NOTE
Text of note Global Wheat Program
546 ## - LANGUAGE NOTE
Language note English
594 ## - STAFFID
StaffID INT2843|INT0610
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Keller, B.,
Relator term coaut.
9 (RLIN) 1680
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name McIntosh, R.
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Huerta-Espino, J.
Miscellaneous information Global Wheat Program
Field link and sequence number CHUE01
9 (RLIN) 397
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Singh, R.P.
Miscellaneous information Global Wheat Program
Field link and sequence number INT0610
9 (RLIN) 825
700 1# - ADDED ENTRY--PERSONAL NAME
9 (RLIN) 867
Personal name Bhavani, S.
Miscellaneous information Global Wheat Program
Field link and sequence number INT2843
856 4# - ELECTRONIC LOCATION AND ACCESS
Link text Access only for CIMMYT Staff
Uniform Resource Identifier http://libcatalog.cimmyt.org/download/cis/G95058.pdf
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha item type Conference proceedings
Source of classification or shelving scheme Dewey Decimal Classification
Holdings
Date last seen Total Checkouts Full call number Price effective from Koha item type Lost status Damaged status Not for loan Collection code Withdrawn status Home library Current library Date acquired
07/10/2017   CIS-6339 07/10/2017 Conference proceedings Not Lost     CIMMYT Staff Publications Collection   CIMMYT Knowledge Center: John Woolston Library CIMMYT Knowledge Center: John Woolston Library 07/10/2017

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