000099072 001__ 99072
000099072 005__ 20230519145517.0
000099072 0247_ $$2doi$$a10.1038/s41438-020-00444-4
000099072 0248_ $$2sideral$$a122235
000099072 037__ $$aART-2021-122235
000099072 041__ $$aeng
000099072 100__ $$aPérez de los Cobos, F.
000099072 245__ $$aPedigree analysis of 220 almond genotypes reveals two world mainstream breeding lines based on only three different cultivars
000099072 260__ $$c2021
000099072 5060_ $$aAccess copy available to the general public$$fUnrestricted
000099072 5203_ $$aLoss of genetic variability is an increasing challenge in tree breeding programs due to the repeated use of a reduced number of founder genotypes. However, in almond, little is known about the genetic variability in current breeding stocks, although several cases of inbreeding depression have been reported. To gain insights into the genetic structure in modern breeding programs worldwide, marker-verified pedigree data of 220 almond cultivars and breeding selections were analyzed. Inbreeding coefficients, pairwise relatedness, and genetic contribution were calculated for these genotypes. The results reveal two mainstream breeding lines based on three cultivars: “Tuono”, “Cristomorto”, and “Nonpareil”. Descendants from “Tuono” or “Cristomorto” number 76 (sharing 34 descendants), while “Nonpareil” has 71 descendants. The mean inbreeding coefficient of the analyzed genotypes was 0.041, with 14 genotypes presenting a high inbreeding coefficient, over 0.250. Breeding programs from France, the USA, and Spain showed inbreeding coefficients of 0.075, 0.070, and 0.037, respectively. According to their genetic contribution, modern cultivars from Israel, France, the USA, Spain, and Australia trace back to a maximum of six main founding genotypes. Among the group of 65 genotypes carrying the Sf allele for self-compatibility, the mean relatedness coefficient was 0.125, with “Tuono” as the main founding genotype (24.7% of total genetic contribution). The results broaden our understanding about the tendencies followed in almond breeding over the last 50 years and will have a large impact into breeding decision-making process worldwide. Increasing current genetic variability is required in almond breeding programs to assure genetic gain and continuing breeding progress.
000099072 536__ $$9info:eu-repo/grantAgreement/ES/MINECO-FEDER/RTA2017-00084-00-00
000099072 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000099072 590__ $$a7.291$$b2021
000099072 592__ $$a1.599$$b2021
000099072 594__ $$a8.5$$b2021
000099072 591__ $$aGENETICS & HEREDITY$$b19 / 177 = 0.107$$c2021$$dQ1$$eT1
000099072 593__ $$aBiochemistry$$c2021$$dQ1
000099072 591__ $$aPLANT SCIENCES$$b16 / 240 = 0.067$$c2021$$dQ1$$eT1
000099072 593__ $$aPlant Science$$c2021$$dQ1
000099072 591__ $$aHORTICULTURE$$b1 / 36 = 0.028$$c2021$$dQ1$$eT1
000099072 593__ $$aHorticulture$$c2021$$dQ1
000099072 593__ $$aBiotechnology$$c2021$$dQ1
000099072 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000099072 700__ $$aMartínez-García, P.J.
000099072 700__ $$aRomero, A.
000099072 700__ $$aMiarnau, X.
000099072 700__ $$aEduardo, I.
000099072 700__ $$aHowad, W.
000099072 700__ $$aMnejja, M.
000099072 700__ $$aDicenta, F.
000099072 700__ $$aSocias i Company, R.
000099072 700__ $$0(orcid)0000-0002-3455-0145$$aRubio-Cabetas, M.J.
000099072 700__ $$aGradziel, T.M.
000099072 700__ $$aWirthensohn, M.
000099072 700__ $$aDuval, H.
000099072 700__ $$aHolland, D.
000099072 700__ $$aArús, P.
000099072 700__ $$aVargas, F.J.
000099072 700__ $$aBatlle, I.
000099072 773__ $$g8, 1 (2021), 11 [11 pp]$$pHortic. res.$$tHORTICULTURE RESEARCH$$x2662-6810
000099072 8564_ $$s849718$$uhttps://zaguan.unizar.es/record/99072/files/texto_completo.pdf$$yVersión publicada
000099072 8564_ $$s2550404$$uhttps://zaguan.unizar.es/record/99072/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000099072 909CO $$ooai:zaguan.unizar.es:99072$$particulos$$pdriver
000099072 951__ $$a2023-05-18-15:19:34
000099072 980__ $$aARTICLE