Live-cell imaging of the cytoskeleton in elongating cotton fibres

Yu, Yong; Wu, Shengyuan; Nowak, Jacqueline; Wang, Guangda; Han, Libo; Feng, Zhidi; Mendrinna, Amelie; Ma, Yinping; Wang, Huan; Zhang, Xiaxia; Tian, Juan; Dong, Li; Nikoloski, Zoran; Persson, Staffan; Kong, Zhaosheng

doi:10.1038/s41477-019-0418-8

Cited by 58 publications

(33 citation statements)

References 42 publications

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“…Cotton fibers elongate through a unique tip-biased diffuse growth mode [84]. Asymmetric domestication, phytohormonal changes, reactive oxygen species (ROS) homeostasis, and differential expression patterns of key regulatory genes together regulate fiber elongation in present-day cultivated cotton.…”

Section: Box 1 Dynamics Of Cotton Fiber Elongationmentioning

confidence: 99%

Gossypium Genomics: Trends, Scope, and Utilization for Cotton Improvement

Yang

Qanmber

Wang

et al. 2020

Trends in Plant Science

119

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Cotton (Gossypium spp.) is the most important natural fiber crop worldwide. The diversity of Gossypium species also provides an ideal model for investigating evolution and domestication of polyploids. However, the huge and complex cotton genome hinders genomic research. Technical advances in high-throughput sequencing and bioinformatics analysis have now largely overcome these obstacles, bringing about a new era of cotton genomics. Here, we review recent progress in Gossypium genomics based on whole genome sequencing, resequencing, and comparative genomics, which have provided insights about the genomic basis of fiber biogenesis and the landscape of cotton functional genomics. We address current challenges and present multidisciplinary genomics-enabled breeding strategies covering the breadth of high fiber yield, quality, and environmental resilience for future cotton breeding programs. Gossypium Genomics at a Glance As the world's most important fiber crop and a major source of seed oil and protein, cotton is cultivated in more than 75 countries around the globe [1]. Cotton fibers are seed trichomes, up to 65 mm long, composed of almost pure cellulose, and provide a unique single-celled model system for studying cell elongation and cell wall biogenesis [2]. The Gossypium genus is extraordinarily diverse, with eight diploid genome groups (A-G, and K) and one allopolyploid group (AD) [3,4]. Hybridization and polyploidization of two parental diploids, an A genome-like species with a D genome-like species, has resulted in at least seven allotetraploid species. Two allotetraploid species, Gossypium hirsutum and Gossypium barbadense, evolved independently; these two account for over 90% of annual commercial fiber production. Gossypium is ideal for investigating the origin, evolution, and domestication of polyploids [5-7]. Highlights Cotton is an important natural fiber crop cultivated worldwide that also provides an ideal model for investigating evolution and domestication of polyploids Combinations of the latest technologies, such as optical mapping, high-throughput chromosome conformation capture (Hi-C), and Pacific Biosciences (PacBio) long-reads, have been used to generate multiple high-quality reference genomes of diploid and allotetraploid cotton. Comparative population genomics illuminated the genetic history of cotton domestication and identified the genomic variation determining fiber yield, quality, and stress resistance.

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Section: Box 1 Dynamics Of Cotton Fiber Elongationmentioning

confidence: 99%

Gossypium Genomics: Trends, Scope, and Utilization for Cotton Improvement

Yang

Qanmber

Wang

et al. 2020

Trends in Plant Science

119

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“…Cotton is an economic and fibrous crop of global significance. Actin and actin-binding protein were found to play an important role in the growth [ 18 ] and elongation [ 19 ] of plants. Cotton Myosin should be essential for the growth of fiber as an interacting protein with actin, but relatively few studies exist.…”

Section: Introductionmentioning

confidence: 99%

Genome-Wide Identification and Comparative Analysis of Myosin Gene Family in Four Major Cotton Species

Zhao

Wang

et al. 2020

Genes

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Myosin protein as a molecular motor, binding with Actin, plays a significant role in various physiological activities such as cell division, movement, migration, and morphology; however, there are only a few studies on plant Myosin gene family, particularly in cotton. A total of 114 Myosin genes were found in Gossypium hirsutum, Gossypium barbadense, Gossypium raimondii, and Gossypium arboreum. All Myosins could be grouped into six groups, and for each group of these genes, similar gene structures are found. Study of evolution suggested that the whole genome duplications event occurring about 13–20 MYA (millions of years ago) is the key explanation for Myosins expanse in cotton. Cis-element and qPCR analysis revealed that plant hormones such as abscisic acid, methyl jasmonate, and salicylic acid can control the expression of Myosins. This research provides useful information on the function of Myosin genes in regulating plant growth, production, and fiber elongation for further studies.

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“…Arabidopsis petals have long been recognized as an ideal model system for the study of anisotropic shape formation and plant organogenesis, and recent studies have proposed that petal epidermal cells serve as a valuable model system for studying how specific epidermal cell types reproducibly develop into their characteristic shapes [16,17,23,40,41]. Regulation of microtubule organization and dynamics plays an important role in cell expansion and shape and plant morphogenesis [64,65,66,67,68,69,70,71,72]. Microtubules guide the orientation of the cellulose microfibrils and pattern of the cell wall.…”

Section: Discussionmentioning

confidence: 99%

“…Live-cell imaging and genetic studies over the past decades have demonstrated that the dynamic features of microtubules, including treadmilling, branching, and severing, enable microtubules to self-organize into diverse arrays, and that microtubule-associated proteins play critical roles in the regulation of microtubule dynamics and organization [64,65,66,67,68,69,70,71,72]. Many mutants of Arabidopsis have been identified that display abnormal cell expansion and developmental defects, correlating with changes in microtubule organization [73,74,75,76].…”

Section: The Petal Abaxial Epidermismentioning

confidence: 99%

Cortical Microtubule Organization during Petal Morphogenesis in Arabidopsis

Yang

Huang

et al. 2019

IJMS

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Cortical microtubules guide the direction and deposition of cellulose microfibrils to build the cell wall, which in turn influences cell expansion and plant morphogenesis. In the model plant Arabidopsis thaliana (Arabidopsis), petal is a relatively simple organ that contains distinct epidermal cells, such as specialized conical cells in the adaxial epidermis and relatively flat cells with several lobes in the abaxial epidermis. In the past two decades, the Arabidopsis petal has become a model experimental system for studying cell expansion and organ morphogenesis, because petals are dispensable for plant growth and reproduction. Recent advances have expanded the role of microtubule organization in modulating petal anisotropic shape formation and conical cell shaping during petal morphogenesis. Here, we summarize recent studies showing that in Arabidopsis, several genes, such as SPIKE1, Rho of plant (ROP) GTPases, and IPGA1, play critical roles in microtubule organization and cell expansion in the abaxial epidermis during petal morphogenesis. Moreover, we summarize the live-confocal imaging studies of Arabidopsis conical cells in the adaxial epidermis, which have emerged as a new cellular model. We discuss the microtubule organization pattern during conical cell shaping. Finally, we propose future directions regarding the study of petal morphogenesis and conical cell shaping.

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Live-cell imaging of the cytoskeleton in elongating cotton fibres

Cited by 58 publications

References 42 publications

Gossypium Genomics: Trends, Scope, and Utilization for Cotton Improvement

Gossypium Genomics: Trends, Scope, and Utilization for Cotton Improvement

Genome-Wide Identification and Comparative Analysis of Myosin Gene Family in Four Major Cotton Species

Cortical Microtubule Organization during Petal Morphogenesis in Arabidopsis

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