作者
Anuj Chiluwal, Ramasamy Perumal, Hari P Poudel, Kebede Muleta, Troy Ostmeyer, Lauren Fedenia, Meghnath Pokharel, Scott R Bean, David Sebela, Raju Bheemanahalli, Halilou Oumarou, Patricia Klein, William L Rooney, SV Krishna Jagadish
发表日期
2022/2
期刊
Planta
卷号
255
期号
2
页码范围
40
出版商
Springer Berlin Heidelberg
简介
Main conclusion
QTL hotspots identified for selected source–sink-related traits provide the opportunity for pyramiding favorable alleles for improving sorghum productivity under diverse environments.
Abstract
A sorghum bi-parental mapping population was evaluated under six different environments at Hays and Manhattan, Kansas, USA, in 2016 and 2017, to identify genomic regions controlling source-sink relationships. The population consisted of 210 recombinant inbred lines developed from US elite post-flowering drought susceptible (RTx430) and a known post-flowering drought tolerant cultivar (SC35). Selected physiological traits related to source (effective quantum yield of photosystem II and chlorophyll index), sink (grain yield per panicle) and panicle neck diameter were recorded during grain filling. The results showed strong phenotypic and genotypic association between panicle neck diameter and grain …
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A Chiluwal, R Perumal, HP Poudel, K Muleta… - Planta, 2022