000117694 001__ 117694
000117694 005__ 20240319081007.0
000117694 0247_ $$2doi$$a10.3389/fpls.2022.842333
000117694 0248_ $$2sideral$$a129185
000117694 037__ $$aART-2022-129185
000117694 041__ $$aeng
000117694 100__ $$0(orcid)0000-0002-3947-5623$$aHerrera, S.
000117694 245__ $$aMale Meiosis as a Biomarker for Endo- to Ecodormancy Transition in Apricot
000117694 260__ $$c2022
000117694 5060_ $$aAccess copy available to the general public$$fUnrestricted
000117694 5203_ $$aDormancy is an adaptive strategy in plants to survive under unfavorable climatic conditions during winter. In temperate regions, most fruit trees need exposure to a certain period of low temperatures to overcome endodormancy. After endodormancy release, exposure to warm temperatures is needed to flower (ecodormancy). Chilling and heat requirements are genetically determined and, therefore, are specific for each species and cultivar. The lack of sufficient winter chilling can cause failures in flowering and fruiting, thereby compromising yield. Thus, the knowledge of the chilling and heat requirements is essential to optimize cultivar selection for different edaphoclimatic conditions. However, the lack of phenological or biological markers linked to the dormant and forcing periods makes it difficult to establish the end of endodormancy. This has led to indirect estimates that are usually not valid in different agroclimatic conditions. The increasing number of milder winters caused by climatic change and the continuous release of new cultivars emphasize the necessity of a proper biological marker linked to the endo- to ecodormancy transition for an accurate estimation of the agroclimatic requirements (AR) of each cultivar. In this work, male meiosis is evaluated as a biomarker to determine endodormancy release and to estimate both chilling and heat requirements in apricot. For this purpose, pollen development was characterized histochemically in 20 cultivars over 8 years, and the developmental stages were related to dormancy. Results were compared to three approaches that indirectly estimate the breaking of dormancy: an experimental methodology by evaluating bud growth in shoots collected periodically throughout the winter months and transferred to forcing chambers over 3 years, and two statistical approaches that relate seasonal temperatures and blooming dates in a series of 11–20 years by correlation and partial least square regression. The results disclose that male meiosis is a possible biomarker to determine the end of endodormancy and estimate AR in apricot. Copyright © 2022 Herrera, Lora, Fadón, Hedhly, Alonso, Hormaza and Rodrigo.
000117694 536__ $$9info:eu-repo/grantAgreement/ES/MCINN/PRE2018-084962$$9info:eu-repo/grantAgreement/ES/MCINN/PID2019-109566RB-I00$$9info:eu-repo/grantAgreement/ES/MCINN/PCI2020-111966$$9info:eu-repo/grantAgreement/ES/MCINN-AEI/PID2020-115473RR-I00$$9info:eu-repo/grantAgreement/ES/DGA-FSE/A12-17R
000117694 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000117694 590__ $$a5.6$$b2022
000117694 592__ $$a1.231$$b2022
000117694 591__ $$aPLANT SCIENCES$$b27 / 239 = 0.113$$c2022$$dQ1$$eT1
000117694 593__ $$aPlant Science$$c2022$$dQ1
000117694 594__ $$a7.1$$b2022
000117694 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000117694 700__ $$aLora, J.
000117694 700__ $$aFadón, E.
000117694 700__ $$aHedhly, A.
000117694 700__ $$aAlonso, J. M.
000117694 700__ $$aHormaza, J. I.
000117694 700__ $$0(orcid)0000-0002-8321-1764$$aRodrigo García, J.$$uUniversidad de Zaragoza
000117694 7102_ $$15011$$2705$$aUniversidad de Zaragoza$$bDpto. CC.Agrar.y Medio Natural$$cÁrea Producción Vegetal
000117694 773__ $$g13 (2022), 842333 [15 pp]$$pFront. plant sci.$$tFrontiers in Plant Science$$x1664-462X
000117694 8564_ $$s3566786$$uhttps://zaguan.unizar.es/record/117694/files/texto_completo.pdf$$yVersión publicada
000117694 8564_ $$s2194223$$uhttps://zaguan.unizar.es/record/117694/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000117694 909CO $$ooai:zaguan.unizar.es:117694$$particulos$$pdriver
000117694 951__ $$a2024-03-18-14:47:50
000117694 980__ $$aARTICLE