Identification and transfer of ASI quantitative trait loci (QTL): (Record no. 3742)

000 -LEADER
fixed length control field 03358nam a22004697a 4500
001 - CONTROL NUMBER
control field 65852
003 - CONTROL NUMBER IDENTIFIER
control field MX-TxCIM
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20190401213004.0
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 121211s ||||f| 0 p|p||0|| |
020 ## - INTERNATIONAL STANDARD BOOK NUMBER
International Standard Book Number 968-6923-93-4
040 ## - CATALOGING SOURCE
Original cataloging agency MX-TxCIM
072 #0 - SUBJECT CATEGORY CODE
Subject category code F30
072 #0 - SUBJECT CATEGORY CODE
Subject category code H50
082 04 - DEWEY DECIMAL CLASSIFICATION NUMBER
Classification number 633.153
Item number EDM
110 2# - MAIN ENTRY--CORPORATE NAME
Corporate name or jurisdiction name as entry element Centro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT), Mexico DF (Mexico)
100 1# - MAIN ENTRY--PERSONAL NAME
9 (RLIN) 835
Personal name Ribaut, J.M.
Miscellaneous information Integrated Breeding Platform
Field link and sequence number INT1991
Affiliation Developing Drought- and Low N-Tolerant Maize. Proceedings of a Symposium; El Batan, Tex. (Mexico); 25- 29 Mar 1996
245 00 - TITLE STATEMENT
Title Identification and transfer of ASI quantitative trait loci (QTL):
Remainder of title A strategy to improve drought tolerance in maize lines and populations
260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)
Place of publication, distribution, etc. Mexico, DF (Mexico)
Name of publisher, distributor, etc. CIMMYT :
Date of publication, distribution, etc. 1997
340 ## - PHYSICAL MEDIUM
Material base and configuration Printed
520 ## - SUMMARY, ETC.
Summary, etc. When drought stress occurs just before or during flowering in maize, it delays silking and increases the anthesis-silking interval (ASI). Strong evidence associates an increased ASI with reduced grain yields in maize. In the present study, molecular markers were used to identify genomic segments responsible for the expression of ASI in maize, with the aim of using this information in marker-assisted selection (MAS)for reduced ASI. An F2 population of 260 individuals was genotyped at 150 loci. In 1992 and 1994, F3 families were evaluated under several water regimes in the field for ASI, several morphological traits, yield components and physiological drought variables. For ASI, six QTL (LOD scores greater than 2.5) were identified on chromosomes 1, 2, 5, 6, 8 and 10. These QTL account together for approximately 50% of the phenotypic variability which represented a change of 10.5 d for ASI. Transgressive segregation was observed for this trait. The four QTL segments contributed by the short- ASI line were responsible for a 6.8 d reduction in ASI, represented around 7% of the linkage map, and were stable over years and stress levels. Based mainly 071 these results and on the identification of QTL involved in the expression of grain yield, three different MAS projects are now being conducted at CIMMYT. These schemes, one based on backcrossing, another on line development from F3 families, and a third on changes in allelic frequencies in open-pollinated populations are discussed. Preliminary results suggest that MAS based 071 a strategy combining QTL identified under drought for ASI and grain weight should be a powerful tool to improve drought tolerance of tropical maize inbred lines, and perhaps also of open-pollinated populations.
536 ## - FUNDING INFORMATION NOTE
Text of note Generation Challenge Program
546 ## - LANGUAGE NOTE
Language note English
591 ## - CATALOGING NOTES
Affiliation 9802|AGRIS 9702|anterior|R97-98PROCE|FINAL9798
594 ## - STAFFID
StaffID INT1991
595 ## - COLLECTION
Collection CIMMYT Publications Collection
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Drought resistance
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
9 (RLIN) 1081
Topical term or geographic name as entry element Drought stress
Miscellaneous information AGROVOC
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Flowering
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Genetic inheritance
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
9 (RLIN) 1211
Topical term or geographic name as entry element Plant population
Miscellaneous information AGROVOC
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Selection
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Tropical zones
653 0# - INDEX TERM--UNCONTROLLED
Uncontrolled term CIMMYT
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
9 (RLIN) 1314
Topical term or geographic name as entry element Zea mays
Miscellaneous information AGROVOC
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Edmeades, G.O.,
Relator term coaut.
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Edmeades, G.O.|Banziger, M.|Mickelson, H.R.|Peña-Valdivia, C.B.
Relator term eds.
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name González de León, D.,
Relator term coaut.
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Hoisington, D.A.,
Relator term coaut.
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Jiang, C.,
Relator term coaut.
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha item type Conference proceedings
Holdings
Withdrawn status Lost status Damaged status Not for loan Collection code Permanent Location Current Location Date acquired Full call number Barcode Date last seen Copy number Price effective from Koha item type
  Not Lost     CIMMYT Publications Collection CIMMYT Knowledge Center: John Woolston Library CIMMYT Knowledge Center: John Woolston Library 2015-02-10 633.153 EDM 2U624179 2015-02-10 1 2015-02-10 Conference proceedings
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Centro Internacional de Mejoramiento de Maíz y Trigo (CIMMYT) © Copyright 2015. Carretera México-Veracruz. Km. 45, El Batán, Texcoco, México, C.P. 56237.
Si tiene cualquier pregunta, contáctenos a CIMMYT-Knowledge-Center@cgiar.org