Genotype by Trait (GT) and Genotype by Yield*Traits (GYT) Analysis of Sorghum Landraces in Tigray, Northern Ethiopia-Crop Breeding, Genetics and Genomics-CSCIED科技核心评价数据库-手机版

Genotype by Trait (GT) and Genotype by Yield*Traits (GYT) Analysis of Sorghum Landraces in Tigray, Northern Ethiopia

Genotype by Trait (GT) and Genotype by Yield*Traits (GYT) Analysis of Sorghum Landraces in Tigray, Northern Ethiopia

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DOI	10.20900/cbgg20230002
刊名	Crop Breeding, Genetics and Genomics CBGG
年，卷(期)	2023, 5(2)
作者	Shushay Welderufael*,Fetein Abay,Amsalu Ayana,Tilahun Amede,
作者单位	1 Department of Dryland Crop and Horticultural Sciences, Mekelle University, Mekelle, 231, Ethiopia; 2 Integrated Seed System Development (ISSD), Addis Ababa, 1000, Ethiopia; 3 International Crop Research Institute for Semi-Arid Tropics (ICRISAT), Addis Ababa, 5689, Ethiopia
Abstract	Genotype evaluation based on multiple traits is a new approach in plant breeding. In this study, 108 sorghum landraces along with two standard checks were planted at three locations of Tigray in the 2018 and 2019 growing seasons. The objectives of this study were to investigate the trait profiles of sorghum landraces, and to identify superior sorghum landraces using GYT and GT analysis methods. The correlation computed for the genotypes showed positive and highly significant (P < 0.01) correlation of grain yield with traits Pnt, Pwd, Pwt and TGWT, and negative and non-significant correlation with DH, DF and DM. The trait profile of the landraces were also displayed using both GT and GYT biplots. The GYT biplots was instrumental to rank genotypes based on their overall superiority of yield trait combinations using ATC graph of the biplot and GYT superiority index, which is not applicable using the GT biplot. Accordingly, LR106 > LR25 > LR102 > LR12 > LR78 > LR103 > LR1 > LR74 > LR15 were best ranked landraces. Thus, the GYT analysis approach is informative for effective genotype evaluation and selection. We revealed that analysis of sorghum landraces based on multiple traits is crucial to develop superior varieties, and the details of this study are significant for thoughtful sorghum breeding programs.
KeyWord	trait profile; multi-trait combinations; trait association; superior landraces
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Shushay Welderufael*,Fetein Abay,Amsalu Ayana,Tilahun Amede. Genotype by Trait (GT) and Genotype by Yield*Traits (GYT) Analysis of Sorghum Landraces in Tigray, Northern Ethiopia, Crop Breeding, Genetics and Genomics. 2023; 5; (2). https://doi.org/10.20900/cbgg20230002.

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