Application of experimental mutagenesis in inter-species hybridization of wheat (Record no. 7190)

000 -LEADER
fixed length control field 05149nam a22005297a 4500
001 - CONTROL NUMBER
control field 79936
003 - CONTROL NUMBER IDENTIFIER
control field MX-TxCIM
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20170719154802.0
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
072 #0 - SUBJECT CATEGORY CODE
Subject category code A50
072 #0 - SUBJECT CATEGORY CODE
Subject category code F30
082 04 - DEWEY DECIMAL CLASSIFICATION NUMBER
Classification number 633.1147
Item number BED
100 1# - MAIN ENTRY--PERSONAL NAME
Personal name Zedgendze, I.A.
Affiliation International caucasian conference on cereals and food legumes. Abstracts
110 0# - MAIN ENTRY--CORPORATE NAME
Corporate name or jurisdiction name as entry element Centro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT)
9 (RLIN) 978
111 2# - MAIN ENTRY--MEETING NAME
Location of meeting Tbilisi (Georgia)
Date of meeting 14-17 Jun 2004
245 00 - TITLE STATEMENT
Title Application of experimental mutagenesis in inter-species hybridization of wheat
260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)
Place of publication, distribution, etc. Tbilisi (Georgia)
Name of publisher, distributor, etc. CIMMYT :
Date of publication, distribution, etc. 2004
300 ## - PHYSICAL DESCRIPTION
Extent p. 314-315
340 ## - PHYSICAL MEDIUM
Material base and configuration Printed
500 ## - GENERAL NOTE
General note Abstract only
520 ## - SUMMARY, ETC.
Summary, etc. Research history of crossing of genetically distant forms is accounting for more than two centuries. I. Kehlreiter was the first to cross and analyze more than 50 varieties of hybrid combi- nations. Presently the study of processes taking place in distant hybridization is intensively continued. Investigation of the mechanism and specific features of this process is carried out from the family to molecular levels (between families, between species, between wild and cultured forms, between tissues, between cells and molecules). The reason of such vital interest in research of distant hybridization is the diversity of results of this process. Namely, the cycle of distant crossing produces absolutely unique individuals, which never before existed in nature. Synthesis of new species is carried out, and researchers gain the opportunity to establish the possible paths and mechanisms of evolution through investigation of the separate stages of this process. Along with theoretical importance, the distant hybridization is of a significant practical application, as crossing of taxonomically distant forms gives the broad range of hybrid mechanisms, which are widely used in breeding. This method ensures successful adoption of beneficial characteristics of wild species by the cultured plants. Regardless of the wide application of distant hybridization nowadays, utilization of its potential is still restricted due to its side problems. Such as, low yield of hybrid forms and their absolute or partial sterility. In order to overcome crossing impotence, ensure increase in yield of hybrid grains as well as solve other problems different methods are applied, such as pistil instigation by stigma, pollination with mixed pollen, treatment of pollen grains with various mutagens, etc. We have studied effect of gamma- radiation on increasing combaining abity of tetraploid and hexaploid varieties of wheat. Hexaploid (T. aestivum, T. spelta, T. macha) and tetraploid (T. durum, T. carthlicum, T. polonicum) varieties were used in our experiment. The grains were irradiated at the rates of 3, 5, 10, 15 and 20 krad. Produced plants were emasculated. Three crossing patterns were applied: radiated maternal plants X non-radiated pollinator, non- radiated maternal plant X radiated pollinator, and finally, radiated maternal plant X radiated pollinator. Analyses have shown that the first and the third patterns do not produce positive results. Namely, emasculation of radiated plant is difficult, as damage or detachment of pistil easily occurs during the separation of pollen with pincers. At the same time, in case of pollination of the flowers with the damaged pistils, seed setting in hybrids frequently matches that of the check or is even lower by 1.3%. Crossing of the pair of radiated parents also failed to produce positive results, whereas all combinations with the non-radiated maternal plant and the pollen of the mate radiated by 5 krad dose were positive. In crossing of hexaploid wheat with tetraploid varieties, seed setting of hybrid grains have increased by 3.7% in comparison with the check, while in interspecific crossing of tetraploid varieties at 5 krad doses seed setting of hybrid grains had increased by 9.4%-12%. Application of 3 krad or 10 krad and higher doses rendered no positive results. Our experiments have ascertained the following general arrangement: at crossing of varieties with the equal number of chromosomes the seed setting percentage of hybrid grains is higher compared to crossing of varieties with the different set of chromosomes.
546 ## - LANGUAGE NOTE
Language note English
591 ## - CATALOGING NOTES
Affiliation 0409|AGRIS 0401|AL-Wheat Program
595 ## - COLLECTION
Collection CIMMYT Publications Collection
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Crossbreeding
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Hexaploids
9 (RLIN) 1146
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Hybridization
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Triticum carthlicum
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Triticum durum
9 (RLIN) 1297
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Triticum macha
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Triticum polonicum
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Triticum spelta
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Varieties
9 (RLIN) 1303
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Wheat
653 0# - INDEX TERM--UNCONTROLLED
Uncontrolled term CIMMYT
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
9 (RLIN) 1127
Topical term or geographic name as entry element Genetic resources
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
9 (RLIN) 1296
Topical term or geographic name as entry element Triticum aestivum
Miscellaneous information AGROVOC
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
9 (RLIN) 1313
Topical term or geographic name as entry element Yields
Miscellaneous information AGROVOC
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
9 (RLIN) 1151
Topical term or geographic name as entry element Hybrids
Miscellaneous information AGROVOC
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Bedoshvili, D.
Relator term ed.
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Naskidashvili, I.P.,
Relator term coaut.
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Naskidashvili, M.P.,
Relator term coaut.
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Zedgenidze, A.I.,
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 2015-02-10 633.1147 BED 2W630072 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.
Lunes –Viernes 9:00 am. 17:00 pm. Si tiene cualquier pregunta, contáctenos a CIMMYT-Knowledge-Center@cgiar.org