Yajun Liang^1,2,#, Juyun Zheng^1,#, Junduo Wang^1,#, Zhaolong Gong¹, Zhiqiang Li³, Ling Min⁴, Zeliang Zhang², Zhiwei Sang², Yanying Qu², Xueyuan Li^1,*, Quanjia Chen^2,*

Phyton-International Journal of Experimental Botany, Vol.92, No.12, pp. 3345-3357, 2023, DOI:10.32604/phyton.2023.028755

Abstract Upland cotton (Gossypium hirsutum) is the most important plant producing natural fibers for the textile industry. In this study, we first investigated the phenotypic variation of seven agronomic traits of 273 diverse cotton accessions in the years 2017 and 2018, which were from 18 geographical regions. We found large variations among the traits in different geographical regions and only half of the traits in either years 2017 or 2018 followed a normal distribution. We then genotyped the collection with 81,612 high quality SNPs. Phylogenetic tree and population structure revealed a diverse genetic structure of the core collection, and geographical diversification… More >

Genhai Hu^1,*, Maoni Chao¹, Xiuren Zhou², Yuanzhi Fu²

Phyton-International Journal of Experimental Botany, Vol.92, No.9, pp. 2535-2554, 2023, DOI:10.32604/phyton.2023.030163

Abstract Gossypium hirsutum L. is an important cash crop native to the subtropics and is widely cultivated around the world. Low temperature is an important stress that seriously affects seed germination and emergence during planting. In this study, transcriptomic profiles of low-temperature- and normal-temperature-germinated seeds of Xinluzao 25, a variety with low-temperature tolerance and high germination rates, were analyzed and compared. The following results were obtained. (1) A total of 81.06 Gb of clean data were obtained after transcriptome sequencing and assembly, and 76,931 non-redundant Unigene sequences were obtained after data consolidation and concatenation; of these, 69,883 Unigene sequences were annotated.… More >

Pereira JR¹, AE Duarte², JB Pitombeira³, MAP da Silva², NE de M Beltrão¹, LM Barros²

Phyton-International Journal of Experimental Botany, Vol.82, pp. 275-279, 2013, DOI:10.32604/phyton.2013.82.275

Abstract An experiment was conducted in dryland conditions of the Brazilian Northeast to determine the number of viable weed seeds (seedbank) in an upland cotton crop, and its distribution in the soil profile, before and after using various herbicide treatments. A randomized block design in a split-plot block scheme with 6 replications was used, where the main plots were constituted by a factorial (13 treatments and 2 sampling soil depths), and the subplots by 2 sampling dates. The seedbank was determined by germination of the recovered weed seeds obtained from different soil depths. The highest number of viable weed seeds in… More >