Knowledge Center Catalog

Assessing genetic gain and diversity in Ethiopian bread wheat across six decades (Record no. 69467)

MARC details
000 -LEADER
fixed length control field 02540nab|a22004097a|4500
001 - CONTROL NUMBER
control field 69467
003 - CONTROL NUMBER IDENTIFIER
control field MX-TxCIM
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20251114135500.0
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 202510s2025||||-uk|||p|op||||00||0|eng|d
022 ## - INTERNATIONAL STANDARD SERIAL NUMBER
International Standard Serial Number 2045-2322 (Online)
024 8# - OTHER STANDARD IDENTIFIER
Standard number or code https://doi.org/10.1038/s41598-025-20383-1
040 ## - CATALOGING SOURCE
Original cataloging agency MX-TxCIM
041 ## - LANGUAGE CODE
Language code of text/sound track or separate title eng
100 0# - MAIN ENTRY--PERSONAL NAME
Personal name Sefawdin Berta
9 (RLIN) 40518
245 10 - TITLE STATEMENT
Title Assessing genetic gain and diversity in Ethiopian bread wheat across six decades
260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)
Place of publication, distribution, etc. London (United Kingdom) :
Name of publisher, distributor, etc. Nature Research,
Date of publication, distribution, etc. 2025.
500 ## - GENERAL NOTE
General note Peer review
500 ## - GENERAL NOTE
General note Open Access
520 ## - SUMMARY, ETC.
Summary, etc. Assessing breeding progress and genetic diversity in released varieties is crucial for informing future crop improvement strategies. This study evaluated genetic gain and diversity in 49 Ethiopian wheat varieties released over six decades (1967-2021). Significant yield increases were observed, with 'Shaki' showing the highest gain. However, the average annual genetic gain was modest (0.90% under irrigated, 0.69% under rain-fed). The recent released bread wheat variety '' Shaki '' exhibited a 48.6% increase in grain yield under irrigated conditions and a 37.1% increase under rain-fed conditions over the oldest variety, "Lakech". Genetic diversity analysis revealed a decline in heterozygosity and a skewed allele distribution, suggesting potential inbreeding within the breeding program. Population structure analysis indicated a shared genetic background across decades. The low genetic gain and declining diversity highlight the need for strategies to enhance genetic diversity and incorporate novel yield-associated traits to achieve sustainable genetic improvement in Ethiopian wheat breeding.
546 ## - LANGUAGE NOTE
Language note Text in English
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Genetics
Source of heading or term AGROVOC
9 (RLIN) 1130
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Genetic diversity (resource)
Source of heading or term AGROVOC
9 (RLIN) 2974
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Grain
Source of heading or term AGROVOC
9 (RLIN) 1138
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Yields
Source of heading or term AGROVOC
9 (RLIN) 1313
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Regression analysis
Source of heading or term AGROVOC
9 (RLIN) 5834
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Allele frequency
Source of heading or term AGROVOC
9 (RLIN) 9584
650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Wheat
Source of heading or term AGROVOC
9 (RLIN) 1310
651 #7 - SUBJECT ADDED ENTRY--GEOGRAPHIC NAME
Geographic name Ethiopia
Source of heading or term AGROVOC
9 (RLIN) 2025
700 0# - ADDED ENTRY--PERSONAL NAME
Personal name Temesgen Matiwos Menamo
9 (RLIN) 40519
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Tarekegn, Z.T.
Field link and sequence number 001713397
Miscellaneous information Global Wheat Program
9 (RLIN) 31150
700 0# - ADDED ENTRY--PERSONAL NAME
Personal name Techale Birhan
9 (RLIN) 40520
700 0# - ADDED ENTRY--PERSONAL NAME
Personal name Abush Tesfaye Abebe
9 (RLIN) 40521
773 0# - HOST ITEM ENTRY
Title Scientific Reports
Related parts v. 15, no. 1, art. 36616
Place, publisher, and date of publication London (United Kingdom) : Nature Research, 2025.
International Standard Serial Number 2045-2322
Record control number a58025
856 4# - ELECTRONIC LOCATION AND ACCESS
Link text Open Access through DSpace
Uniform Resource Identifier https://hdl.handle.net/10883/36076
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha item type Article
Suppress in OPAC No
Source of classification or shelving scheme Dewey Decimal Classification
Holdings
Date last seen Total Checkouts Price effective from Koha item type Lost status Source of classification or shelving scheme Damaged status Not for loan Collection code Withdrawn status Home library Current library Date acquired
10/30/2025   10/30/2025 Article Not Lost Dewey Decimal Classification     CIMMYT Staff Publications Collection   CIMMYT Knowledge Center: John Woolston Library CIMMYT Knowledge Center: John Woolston Library 10/30/2025

International Maize and Wheat Improvement Center (CIMMYT) © Copyright 2021.
Carretera México-Veracruz. Km. 45, El Batán, Texcoco, México, C.P. 56237.
If you have any question, please contact us at
CIMMYT-Knowledge-Center@cgiar.org