Renjie Zhao¹, Yueqiao Li², Chen Xu², Zhian Zhang^1,*, Ziyang Zhou^2,*, Yihan Zhou³, Zexin Qi¹

Phyton-International Journal of Experimental Botany, Vol.93, No.8, pp. 1963-1980, 2024, DOI:10.32604/phyton.2024.053072 - 30 August 2024

Abstract Despite hybrid dominance contributing to the genetic improvement of crops, little is known about heterosis and inheritance patterns of endogenous substances in sorghum (Sorghum bicolor (L.) Moench) root bleeding sap. In this study, six sterile and six restorer lines of sorghum and 36 hybrid sorghum combinations formulated as incomplete double-row crosses were selected as test materials, and heterosis, combining ability, heritability, and their interrelationships of root bleeding sap endogenous substances in different hybrid sorghum combinations and their parents were investigated. The results showed that the root bleeding sap of the F1 generation of hybrid sorghum had… More >

Xiaotian Liang^1,#, Qi Wen^1,#, Rui Luo¹, Yanxin Zhang¹, Mingda Yin¹, Yanpeng Wen¹, Xuemei Hu¹, Zhiyan Wang¹, Yumiao Huo¹, Fenglan Huang^{1,2,3,4,5,6,*}

Phyton-International Journal of Experimental Botany, Vol.92, No.6, pp. 1765-1792, 2023, DOI:10.32604/phyton.2023.026935 - 11 April 2023

Abstract Castor bean (Ricinus communis L.), is one of the top 10 oilseed crops in the world and, therefore, of high economic value. Hybridization is one of the most effective ways to breed new varieties with high yield, high oil content, and better stress resistance. Therefore, prediction of desired traits in castor hybrid offspring is particularly important. In this study, proteomic analysis was performed to identify differentially expressed proteins (DEPs) in seeds between castor hybrid offspring and their female (Lm female line aLmAB₂) and male parents (CSR·181). Among the DEPs upregulated in the seeds of hybrid offspring, the… More >

Dina Swelam¹, Abdel Hamid Salem², Manal Hassan¹, Mohammed Ali^2,*

Phyton-International Journal of Experimental Botany, Vol.91, No.12, pp. 2699-2717, 2022, DOI:10.32604/phyton.2022.022651 - 29 August 2022

Abstract Drought stress (DS) is one of the most critical environmental abiotic stresses for wheat production in the arid environments. Selection of high-yielding genotypes tolerant to DS can play a significant role in mitigation the negative impacts associated with DS. In the present study, generation means analysis (GMA) was used to study the performance of two crosses under well irrigation (WI) and deficit irrigation [cross I (Line 44 × Shandweel-1) and cross II (Line 20 × Sakha 93)]. Significant differences were observed for days to heading (DH), days to maturity (DM), plant height (PH), spike length (SL), number of spikes… More >

Castañón-Najera G¹, M Ramírez-Meraz³, R Ruiz-Salazar⁴, N Mayek-Pérez²

Phyton-International Journal of Experimental Botany, Vol.80, pp. 53-58, 2011, DOI:10.32604/phyton.2011.80.053

Abstract The chili varieties: (1) Mirador, (2) Piquín huasteco, (3) Pico paloma, (4) Ozulamero and (5) Chilpaya Tabasco were crossed in a diallel without reciprocal crosses to produce 10 F1 hybrid combinations. While the previous varieties (1), (2) and (4) belong to Capsicum annuum varieties, (3) and (5) pertain to Caspicum frutescens. The four study AFLP markers amplified 282 bands or fragments, and of these, 264 were polymorphic. The estimated Genetic Parameters showed that there was dominance based on the genetic distances in the study DNA fragments. Heritability, which was estimated in a narrow sense, was moderate (0.53).… More >

De la Cruz-Lázaro E¹, G Castañón-Najera², NP Brito-Manzano¹, A Gómez-Vázquez¹, V Robledo-Torres³, AJ Lozano del Río³

Phyton-International Journal of Experimental Botany, Vol.79, pp. 11-17, 2010, DOI:10.32604/phyton.2010.79.011

Abstract Estimation of genetic parameters using diallel crosses experiments aids to objective decision making in plant breeding programs. The objectives of this study were to estimate heterosis, the general combining ability (GCA) of eight tropical maize populations, and the specific combining ability (SCA) of 28 crosses. The populations evaluated were: population 21, 22, 23, 25, 32, 43, 49 and the commercial variety VS 536. The Griffing method 2 design was utilized to estimate GCA and SCA effects, on a complete randomized block design with two replications, at two planting dates. The diallel analysis showed significant differences… More >