Achieving Multiple Pest Tolerance Through Manipulation of Morphological Features in Cotton
By Muhammad Naveed Arshad on Dec 24, 2018

WCRC WCRC2 Breeding

ABSTRACT Breeding for tolerance to sucking pests and bollworm in cotton is treated as mutually exclusive events. Selection for resistance to sucking pests with more hairy leaves brought increased susceptibility to bollworms. An effort was made to select genotypes with high density hair on the lower leaf surface and low density hair on the upper su...

Inheritance Studies of Quantitative Characters in Upland Cotton
By Muhammad Naveed Arshad on Dec 21, 2018

WCRC WCRC2 Breeding

ABSTRACT Before any efficient breeding methodology can be developed it is necessary to analyze the genetic architecture of quantitatively inherited characters like yield and its components. Understanding the nature of gene action involved in the expression of a character is helpful in deciding the breeding procedure to be used for improvement of t...

Colour cotton research in Mahyco, India
By Muhammad Naveed Arshad on Dec 21, 2018

WCRC WCRC2 Breeding

ABSTRACT The work on develop naturally coloured cotton commenced at Maharashtra Hybrid Seeds Co. Ltd. (Mahyco, Jalna, India) in 1993. The objectives were the identification of coloured linted cotton hybrids with high yield and superior fiber traits. Colour cotton was grown and used by mankind as long ago as 2500 BC. Damaging effects of synthetic d...

An RFLP and QTL Linkage Map in Gossypium hirsutum L.
By Muhammad Naveed Arshad on Dec 21, 2018

WCRC WCRC2 Breeding

ABSTRACT Ninety-six F2.F3 bulk sampled families of Upland Cotton, Gossypium hirsutum L. from a cross of MARCABUCAG8US1-88 X HS 46 were analysed with 129 probe/enzyme combinations resulting in 138 RFLP loci. There were 84 co-dominant markers of which 76 fit a normal 1:2:1 ratio. There were 54 dominant markers of which 50 fit a normal 3:1 ratio. Usi...

Cotton Breeding Studies in Turkey: History and Future Trends
By Muhammad Naveed Arshad on Dec 21, 2018

WCRC WCRC2 Breeding

ABSTRACT Cotton breeding in Turkey started in the 1920’s by governmental organizations such as research institutes and state universities and to some extent by private organizations. Initially, breeding consisted of introduction, selection, seed multiplication and inter and intra-specific crossing studies. Later, it focused on the investigation of...

Selecting Cotton for Resistance to Boll Weevil in Brazil
By Muhammad Naveed Arshad on Dec 21, 2018

WCRC WCRC2 Breeding

ABSTRACT The boll weevil Anthonomus grandis Boheman, is one of the major pests of cotton in Brazil. There have been many attempts to locate sources of resistance to this insect in many places where it occurs. Several researchers have mentioned primitive Gossypium hirsutum L. that have given significant reduction in oviposition punctures under labo...

Genetic Progress of Cotton Yield in Brazil
By Muhammad Naveed Arshad on Dec 21, 2018

WCRC WCRC2 Breeding

ABSTRACT Embrapa’s cotton breeding program has made substantial progress in the last 18 years in developing cotton cultivars with higher yield and fiber properties. A parallel increase in resistance to drought and insect pests has also been obtained. Seed cotton yield and fiber property means of the cotton cultivar regional tests conducted by Embr...

A Comparison Between RAPD and Phenotypic Analyses on 24 Cotton Genotypes
By Muhammad Naveed Arshad on Dec 21, 2018

WCRC WCRC2 Breeding

ABSTRACT Knowledge of genetic distances among individuals or populations in plant breeding programmes can be used to complement phenotypic information in choosing individuals to use in breeding for populations with high genetic variability. Random Amplified Polymorphic DNA (RAPD) techniques may be advantageous in studies of genetic relationships....

Introgression of Pigment Gland Morphogenisis Delay into Upland Cotton: Potential of DNA Markers to Monitor Parental Contribution to Progenies
By Muhammad Naveed Arshad on Dec 21, 2018

WCRC WCRC2 Breeding

ABSTRACT The delay of pigment gland morphogenisis in the seed confers to several Australian wild diploid cottons the glandless-seed/glanded-plant trait. To introgress this trait from G. sturtianum Willis (2m = 2x = 26, 2C1 genome) into G. hirsutum L. (2n = 4x = 52, 2(AD)1 genome), we used bridge crosses to synthesize two trispecies hybrids, G. hir...

Genetics of Yield and its Contributing Traits in Upland Cotton
By Muhammad Naveed Arshad on Dec 21, 2018

WCRC WCRC2 Breeding

ABSTRACT Line x tester analysis involving three males (testers) and fourteen females (lines) with adaptable and broad genetic base was conducted for yield and its contributing traits in upland cotton. Additive genetic variance and non-additive genetic variance primarily controlled seed cotton yield and lint index. Boll number, boll weight and ginn...

JCR-Cotton High Speed Phenotyping Thematic Series Call For Paper
By Quanyi LIU on Dec 21, 2018

Breeding & Genetic improvement Weed control Measurement classing Disease control Crop Protection Agronomy & physiology Biomol - Biotechnology Sustainability Post Harvest Pest control Environment Breeding JCR

Journal of Cotton Research Cotton High Speed Phenotyping Thematic Series Call For Paper Coordinator: Professor Eric F. Hequet, Texas Tech University, USA; Dr. Glen Ritchie, Texas Tech University, USA Author's allowance: The sponsor, Institute of Cotton Research, CAAS, grants to cover not only APC for the submission, but also the author's al...

Genetic diversity and population structure of Gossypium arboreum L. collected in China
By Quanyi LIU on Dec 20, 2018

Breeding & Genetic improvement Biomol - Biotechnology Agro-physio-Asia Cotton Genome

[Background] Gossypium arboreum is a diploid species cultivated in the Old World. It possesses favorable characters that are valuable for developing superior cotton cultivars. [Method] A set of 197 Gossypium arboreum accessions were genotyped using 80 genome-wide SSR markers to establish patterns of the genetic diversity and population structure...

Map-based cloning of a recessive gene v1 for virescent leaf expression in cotton (Gossypium spp.)
By Quanyi LIU on Dec 20, 2018

Breeding & Genetic improvement Biomol - Biotechnology Agro-physio-Asia Breeding JCR

[Background] Virescence, as a recognizable phenotype in the early development stage of cotton, is not only available for research on chloroplast development and photosynthesis but also for heterosis exploitation in cotton. [Methods] In current study, for fine mapping of virescent-1 (v1) in cotton, three populations with a total of 5 678 individu...

Identification and screening of nitrogen-efficient cotton genotypes under low and normal nitrogen environments at the seedling stage
By Quanyi LIU on Dec 20, 2018

Agro-physio-Asia JCR

[Background] Large quantities of nitrogen (N) fertilizer applied to cotton cropping systems support high yields but cause adverse environmental impacts such as N2O emission and water eutrophication. The development of cotton cultivars with higher N use efficiencies suitable for low-N conditions is therefore important for sustainable production. In...

Analysis of short fruiting branch gene and Marker-assisted selection with SNP linked to its trait in upland cotton
By Quanyi LIU on Dec 19, 2018

Breeding & Genetic improvement Biomol - Biotechnology Agro-physio-Asia Cotton Genome Breeding

[Background] With the rapid development of genomics, many functional genes have been targeted. Molecular marker assisted selection can accelerate the breeding process by linking selection to functional genes. [Methods] In a study of upland cotton (Gossypium hirsutum L.), the F2 segregated population was constructed by crossing X1570 (short branc...

The current status of nitrogen fertiliser use efficiency and future research directions for the Australian cotton industry
By Quanyi LIU on Dec 19, 2018

Agronomy & physiology Agro-physio-australia JCR

Fifty years of sustained investment in research and development has left the Australian cotton industry well placed to manage nitrogen (N) fertiliser. The average production in the Australian cotton industry today is greater than two tonnes of lint per hectare due to improved plant genetics and crop management. However, this average yield is well b...

Designations for individual genomes and chromosomes in Gossypium
By Quanyi LIU on Dec 18, 2018

Breeding & Genetic improvement Cotton Genome JCR

Gossypium, as the one of the biggest genera, the most diversity, and the highest economic value in field crops, is assuming an increasingly important role in studies on plant taxonomy, polyploidization, phylogeny, cytogenetics, and genomics. Here we update and provide a brief summary of the emerging picture of species relationships and diversificat...

Genome-wide identification and expression analysis of Gossypium RING-H2 finger E3 ligase genes revealed their roles in fiber development, and phytohormone and abiotic stress responses
By Quanyi LIU on Dec 18, 2018

Breeding & Genetic improvement Biomol - Biotechnology Breeding JCR

[Background] RING-H2 finger E3 ligase (RH2FE3) genes encode cysteine-rich proteins that mediate E3 ubiquitin ligase activity and degrade target substrates. The roles of these genes in plant responses to phytohormones and abiotic stresses are well documented in various species, but their roles in cotton fiber development are poorly understood. To da...

Genome-wide analysis of Rf-PPR-like (RFL) genes and a new InDel marker development for Rf1 gene in cytoplasmic male sterile CMS-D2 Upland cotton
By Quanyi LIU on Dec 14, 2018

Breeding & Genetic improvement Biomol - Biotechnology Breeding JCR

[Background] Cytoplasmic male sterility in flowering plants is a convenient way to use heterosis via hybrid breeding and may be restored by nuclear restorer-of-fertility (Rf) genes. In most cases, Rf genes encoded pentatricopeptide repeat (PPR) proteins and several Rf genes are present in clusters of similar Rf-PPR-like (RFL) genes. However, the Rf...

A genome-wide analysis of SWEET gene family in cotton and their expressions under different stresses
By Quanyi LIU on Dec 13, 2018

Breeding & Genetic improvement Biomol - Biotech-global JCR

[Background] The SWEET (Sugars will eventually be exported transporters) gene family plays multiple roles in plant physiological activities and development process. It participates in reproductive development and in the process of sugar transport and absorption, plant senescence and stress responses and plant-pathogen interaction. However, the comp...