Heng Zhang^1,#, Meng Wang^1,#, Dong Zeng^1,2, Yunbo Xu¹, Dongyuan Guo¹, Xuanchen Liu^1,3, Zhanqi Ren⁴, Jinzi Zhang¹, Yuhang Liu¹, Qiuyu Wang¹, Shuo Yu¹, Guanzheng Qu^1,*

Phyton-International Journal of Experimental Botany, Vol.94, No.10, pp. 3205-3216, 2025, DOI:10.32604/phyton.2025.069994 - 29 October 2025

Abstract Hybridization remains an important method for breeding new poplar varieties. It results in significant variation in leaf phenotype among parents and offspring, and among offspring themselves. This study aimed to investigate whether leaf shape variations were similar in offspring produced from reciprocal crosses. Specifically, two hybrid combinations were produced: the direct cross with Populus ussuriensis as the maternal parent and P. simonii × P. nigra as the paternal parent (HY53), and the reciprocal cross with P. simonii × P. nigra as the maternal parent and P. ussuriensis as the paternal parent (HY268). Using 3-month-old rooted cuttings from 40 clones (36 F₁ hybrids… More >

Fida Hussain^1,*, Farooq Khan², Javed Ahmad¹, Heqiang Huo³, Tao Jiang³, Iqrar Rana⁴, Sajida Habib⁵, Muhammad Umer Farooq^1,*

Phyton-International Journal of Experimental Botany, Vol.94, No.10, pp. 3231-3249, 2025, DOI:10.32604/phyton.2025.069654 - 29 October 2025

Abstract The analysis of combining ability and heterosis is very important in enhancing the yield and oil quality of sunflowers under adverse conditions, and it reveals the potential of the parents and the mechanism of gene action. In this study, twenty-one hybrids were developed by crossing seven cytoplasmic male sterile (CMS) lines with three restorer lines and evaluated for agronomic and quality traits. Highly significant general combining ability (GCA) and specific combining ability (SCA) effects were observed, confirming the role of both additive and non-additive gene actions. Among the tested crosses, A-42 × R-86, A-92 ×… More >

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 >