PMID: 11607487Jul 19, 1994Paper

Genetic variability for stomatal conductance in Pima cotton and its relation to improvements of heat adaptation

Proceedings of the National Academy of Sciences of the United States of America
J W RadinE Zeiger

Abstract

Responses of stomata to environment have been intensively studied, but little is known of genetic effects on stomatal conductance or their consequences. In Pima cotton (Gossypium barbadense L.), a crop that is bred for irrigated production in very hot environments, stomatal conductance varies genetically over a wide range and has increased with each release of new higher-yielding cultivars. A cross between heat-adapted (high-yielding) and unadapted genotypes produced F2 progeny cosegregating for stomatal conductance and leaf temperature. Within segregating populations in the field, conductance was negatively correlated with foliar temperature because of evaporative cooling. Plants were selected from the F2 generation specifically and solely for differing stomatal conductance. Among F3 and F4 populations derived from these selections, conductance and leaf cooling were significantly correlated with fruiting prolificacy during the hottest period of the year and with yield. Conductance was not associated with other factors that might have affected yield potential (single-leaf photosynthetic rate, leaf water potential). As breeders have increased the yield of this crop, genetic variability for conductance has allowed inadvertent sel...Continue Reading

References

Apr 1, 1977·Science·S B IdsoR J Reginato

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Citations

Jun 6, 2000·Journal of Thermal Biology·M E SalvucciT J Henneberry
Jul 27, 2007·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·J I L MorisonW J Davies
Apr 13, 2000·Proceedings of the National Academy of Sciences of the United States of America·S W Hong, E Vierling
Sep 14, 2010·Journal of Plant Physiology·John L SniderEduardo M Kawakami
Sep 10, 2013·Physiologia Plantarum·Mieke de WitChristian Fankhauser
Jun 5, 2015·Frontiers in Plant Science·Biswapriya B MisraSixue Chen
May 26, 2012·Current Biology : CB·Amanda J CrawfordKeara A Franklin
May 7, 2014·Journal of Photochemistry and Photobiology. B, Biology·Sonal MathurAnjana Jajoo
Sep 7, 2016·Plant Science : an International Journal of Experimental Plant Biology·M M ChavesJ S Pereira
May 7, 2013·International Journal of Molecular Sciences·Mirza HasanuzzamanMasayuki Fujita
Mar 23, 2004·Physiologia Plantarum·Michael E. Salvucci, Steven J. Crafts-Brandner
Nov 1, 2017·Functional Plant Biology : FPB·Katrina J BroughtonDavid T Tissue
Feb 26, 2019·Ecology and Evolution·Katherine F WentzKatharine N Suding
Apr 18, 2019·International Journal of Molecular Sciences·Jinyoung Y BarnabyAnna M McClung

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