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Combining ability and gene action studies for yield and fibre traits in Gossypium arboreum using Griffings numerical and Haymans graphical approach

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棉花研究(英文) 2023年第3期6卷 141-156页

作者： sukrutha bhimireddy RAJESWARI Sivakami PREMALATHA N. BOOPATHI Narayana Manikanda THIRUKUMARAN K. MANIVANNAN A. Department of Cotton Centre for Plant Breeding and GeneticsTamil Nadu Agricultural UniversityCoimbatoreIndia O/O Directorate of Research Tamil Nadu Agricultural UniversityCoimbatoreIndia Department of Agronomy Central Farm UnitTamil Nadu Agricultural UniversityCoimbatoreIndia ICAR-Central Institute of Cotton Research Regional StationCoimbatoreIndia

Background For the purpose of utilising hybrid vigour to produce possible hybrids with a suitable level of stability,the knowledge of gene activity and combining ability is a crucial prerequisite before choosing desirable *** present study was carried out with six parents crossed in full diallel fashion and generated 30 F1 *** hybrids were evaluated in two replications in Randomized Block Design at Department of Cotton,TNAU for combining ability and gene *** analysis was carried out according to Griffing’s method-I(parents + F_(1) + reciprocals) and model-I and Hayman’s graphical approach by using INDOSTAT *** Analysis of variance for combining ability indicated that mean square values of GCA,SCA and reciprocals were highly significant for all the traits except for the uniformity ***763 and K12 showed highly positively significant GCA effects for most of the yield traits while PA838 and K12 for fibre quality traits,so they were found as best general ***379 × K12 and PDB29 × K12 for yield traits,and PDB29 × PA838,RG763 × PA838,and CNA1007 × RG763 cross combinations for fibre quality traits could be recommended for future breeding *** The results of both Griffing’s and Hayman’s approaches showed that non-additive gene action predominates as SCA variance was bigger than GCA variance,so heterosis breeding is thought to be a more fruitful option for enhancing GCA of many traits.

关键词： Gene action Combining ability Diallel analysis Hayman’s approach Griffing’s approach Vr-Wr graph Desi cotton

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Caveolae, caveolin-1 and cavin-1: Emerging roles in pulmonary hypertension

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World Journal of Respirology 2015年第2期5卷 126-134页

作者： sukrutha Chettimada Jincheng Yang Hyung-geun Moon Yang Jin Department of Medicine Brigham and Women's HospitalHarvard Medical School

Caveolae are flask-shaped invaginations of cell membrane that play a significant structural and functional role. Caveolae harbor a variety of signaling molecules and serve to receive, concentrate and transmit extracellular signalsacross the membrane. Caveolins are the main structural proteins residing in the caveolae. Caveolins and another category of newly identified caveolae regulatory proteins, named cavins, are not only responsible for caveolae formation, but also interact with signaling complexes in the caveolae and regulate transmission of signals across the membrane. In the lung, two of the three caveolin isoforms, i.e., cav-1 and-2, are expressed ubiquitously. Cavin protein family is composed of four proteins, named cavin-1(or PTRF for polymerase Ⅰ and transcript release factor), cavin-2(or SDPR for serum deprivation protein response), cavin-3(or SRBC for sdr-related gene product that binds to-c-kinase) and cavin-4(or MURC for muscle restricted coiled-coiled protein or cavin-4). All the caveolin and cavin proteins are essential regulators for caveolae dynamics. Recently, emerging evidence suggest that caveolae and its associated proteins play crucial roles in development and progression of pulmonary hypertension. The focus of this review is to outline and discuss the contrast in alteration of cav-1(cav-1),-2 and cavin-1(PTRF) expression and downstream signaling mechanisms between human and experimental models of pulmonary hypertension.

关键词： Caveolae Caveolin-1 Cavin-1 Pulmonary hypertension Lipid rafts

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