caa a22 4500 445323884 CHVBK 20180317142713.0 cr unu---uuuuu 170323e20110401xx s 000 0 eng 10.1007/s10681-010-0289-6 doi (NATIONALLICENCE)springer-10.1007/s10681-010-0289-6 Heritability and predicted selection response of yield components and fibre properties in an inter-specific derived RIL population of cotton [Elektronische Daten] [Shiming Liu, Danny Llewellyn, Warwick Stiller, John Jacobs, Jean-Marc Lacape, Greg Constable] Exploiting genetic variation through inter-specific breeding has improved cotton yield, fibre properties and adaptability. The objectives of this study were to examine heritability and predicted selection response of yield components and fibre properties in a recombinant inbred line (RIL) population from an inter-specific cross between Gossypium hirsutum (Gh) variety Guazuncho 2, and G. barbadense (Gb) line VH8-4602. A population of 93 and 82 RILs was tested in two seasons, with two parents and local controls, Sicot 75 (Gh) and Sipima 280 (Gb) in field experiments. Seed cotton samples hand harvested before and after defoliation were used to measure lint percent, boll weight, 100 seed weight and the lint to measure fibre length, uniformity, short fibre index (SFI), elongation, strength, micronaire, maturity ratio (MR), percent of maturity (PM) and fineness. There was large phenotypic variation for individual traits and transgressive segregation occurred in lint percent, lint weight/seed, fibre no./seed, uniformity, SFI, elongation, MR and PM. Narrow sense heritabilities were moderate for yield components (34.3-41.2%) and for key fibre properties, length, strength, micronaire and fineness (38.3-42.1%), which led to a predicted selection response of 6.7-24.0% for yield components and 3.9-10.9% for key fibre properties under a selection intensity of 10%. Favourable associations were found between key fibre properties, but an adverse association between lint percent and each of these fibre properties. Only five RILs were identified with desirable combinations. The results demonstrated the value of exploiting inter-specific variation to develop cotton germplasm and how breeding strategies can be improved. Springer Science+Business Media B.V., 2010 Inter-specific breeding nationallicence Heritability nationallicence Predicted selection response nationallicence Phenotypic correlation nationallicence Recombinant inbred lines nationallicence Gossypium hirsutum L nationallicence Gossypium barbadense L nationallicence RILs : Recombinant inbred lines nationallicence Gh : Gossypium hirsutum nationallicence Gb : Gossypium barbadense nationallicence UNI : Uniformity nationallicence SFI : Short fibre index nationallicence EL : Elongation nationallicence MIC : Micronaire nationallicence MR : Maturity ratio nationallicence PM : Percent of maturity nationallicence Liu Shiming CSIRO Plant Industry, 2390, Narrabri, NSW, Australia aut Llewellyn Danny CSIRO Plant Industry, P.O. Box 1600, 2601, Canberra, ACT, Australia aut Stiller Warwick CSIRO Plant Industry, 2390, Narrabri, NSW, Australia aut Jacobs John Bayer BioScience N.V., Technolgiepark 38, Ghent, Belgium aut Lacape Jean-Marc UMR-DAP, CIRAD, Avenue Agropolis, 34398, Montpellier Cedex 5, France aut Constable Greg CSIRO Plant Industry, 2390, Narrabri, NSW, Australia aut Euphytica Springer Netherlands 178/3(2011-04-01), 309-320 0014-2336 178:3<309 2011 178 10681 https://doi.org/10.1007/s10681-010-0289-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10681-010-0289-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Liu Shiming CSIRO Plant Industry, 2390, Narrabri, NSW, Australia aut NATIONALLICENCE 700 1- Llewellyn Danny CSIRO Plant Industry, P.O. Box 1600, 2601, Canberra, ACT, Australia aut NATIONALLICENCE 700 1- Stiller Warwick CSIRO Plant Industry, 2390, Narrabri, NSW, Australia aut NATIONALLICENCE 700 1- Jacobs John Bayer BioScience N.V., Technolgiepark 38, Ghent, Belgium aut NATIONALLICENCE 700 1- Lacape Jean-Marc UMR-DAP, CIRAD, Avenue Agropolis, 34398, Montpellier Cedex 5, France aut NATIONALLICENCE 700 1- Constable Greg CSIRO Plant Industry, 2390, Narrabri, NSW, Australia aut NATIONALLICENCE 773 0- Euphytica Springer Netherlands 178/3(2011-04-01), 309-320 0014-2336 178:3<309 2011 178 10681 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer