MARC details
| 000 -LEADER |
|---|
| fixed length control field |
03318nam a22004457a 4500 |
| 001 - CONTROL NUMBER |
|---|
| control field |
G74250 |
| 003 - CONTROL NUMBER IDENTIFIER |
|---|
| control field |
MX-TxCIM |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
|---|
| control field |
20240919021054.0 |
| 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 |
970-648-052-8 |
| 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 |
631.53 |
| Item number |
RIB |
| 100 1# - MAIN ENTRY--PERSONAL NAME |
|---|
| Personal name |
Zhikang Li |
| Affiliation |
Molecular Approaches for the Genetic Improvement of Cereals for Stable Production in Water-Limited Environments. A Strategic Planning Workshop; El Batan, Texcoco (Mexico); 21-25 Jun 1999 |
| 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) |
| 245 00 - TITLE STATEMENT |
|---|
| Title |
Development of near isogenic introgression line (NIIL) sets for QTLs associated with drought tolerance in rice |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) |
|---|
| Place of publication, distribution, etc. |
Mexico, DF (Mexico) |
| Name of publisher, distributor, etc. |
CIMMYT : |
| Date of publication, distribution, etc. |
2000 |
| 340 ## - PHYSICAL MEDIUM |
|---|
| Material base and configuration |
Printed |
| 520 ## - SUMMARY, ETC. |
|---|
| Summary, etc. |
Two mechanisms are believed to contribute to drought tolerance (DT) in rice. A deep and thick root system in the upland rice lines (japonicas) is largely responsible for their tolerance to drought. Alternatively, a better developed osmotic adjustment (OA) capacity in indica cultivars is considered to be a reliable mechanism to maintain the cell turgor under diminishing leaf water potential, potentially contributing to DT. To test the hypothesis of whether the two different DT mechanisms can be combined through QTL pyramiding, four QTLs (located on chromosomes 1,2,7, and 9) identified in a rice DH population were transferred into an indica variety, IR64, using a marker-assisted backcross program. Thirty BC~ 3 near isogenic lines with 1-2 introgressed QTLs were obtained and evaluated in a replicated greenhouse experiment for the target root traits and two nontarget traits-number of tillers per plant and plant height. Three of the 4 introgressed QTLs (targets 1,7, and 9), which were detected with greater LOD previously, were associated with the expected root phenotype, while the other (target 2) was not. The introgressed root QTLs were associated with either reduced tiller number or increased height, but this association was inconsistent, indicating that the observed genetic drag was more likely due to linkage rather than to pleiotropy. The concept and procedure of a new approach - the molecular backcross breeding strategy -were proposed that allow simultaneous identification, transfer, and allelic diversity discovery of desirable QTLs. This approach should be able to overcome all the limitations of MAS for QTLs and has all the advantages of the AB-QTL analysis. However, the effectiveness of phenotypic selection for DT in the BC progenies remains the key to success for this approach. |
| 546 ## - LANGUAGE NOTE |
|---|
| Language note |
English |
| 591 ## - CATALOGING NOTES |
|---|
| Affiliation |
0101|AL-ABC Program|AGRIS 0101 |
| 595 ## - COLLECTION |
|---|
| Collection |
CIMMYT Publications Collection |
| 650 17 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Cereals |
| Miscellaneous information |
AGROVOC |
| Source of heading or term |
|
| 9 (RLIN) |
1036 |
| 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 |
Genetic control |
| 9 (RLIN) |
1694 |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Molecular genetics |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Research projects |
| 9 (RLIN) |
1237 |
| 650 17 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Rice |
| Miscellaneous information |
AGROVOC |
| Source of heading or term |
|
| 9 (RLIN) |
1243 |
| 653 0# - INDEX TERM--UNCONTROLLED |
|---|
| Uncontrolled term |
CIMMYT |
| 650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| 9 (RLIN) |
1313 |
| Topical term or geographic name as entry element |
Yields |
| Miscellaneous information |
AGROVOC |
| 650 17 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Plant breeding |
| Miscellaneous information |
AGROVOC |
| Source of heading or term |
|
| 9 (RLIN) |
1203 |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Courtois, B., |
| Relator term |
coaut. |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Lafitte, R., |
| Relator term |
coaut. |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Ribaut, J.M.|Poland, D. |
| Relator term |
eds. |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Shen, L.S., |
| Relator term |
coaut. |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
|---|
| Koha item type |
Conference proceedings |