Long proleptic and sylleptic shoots in peach (Prunus persica L. Batsch) trees have similar, predetermined, maximum numbers of nodes and bud fate patterns

Autor: Benoît Pallas, Theodore M. DeJong, Maria Teresa Prats-Llinàs, Katherine Fyhrie, Yann Guédon, Gerardo Lopez, Evelyne Costes
Přispěvatelé: Producció Vegetal, Ús Eficient de l'Aigua en Agricultura, Institute of Agrifood Research and Technology (IRTA), Department of Plant Sciences, University of California [Davis] (UC Davis), University of California-University of California, Amélioration génétique et adaptation des plantes méditerranéennes et tropicales (UMR AGAP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), National Institute for Agricultural and Food Research and Technology (INIA) (RTA 2012-00059-C02-01) from the Ministry of Economy and Competitiveness of the Spanish government, European Social Fund
Rok vydání: 2019
Předmět:
0106 biological sciences
Neoformation
Vegetative reproduction
Field data
Plant Biology
F62 - Physiologie végétale - Croissance et développement
Plant Science
growth cessation
01 natural sciences
F50 - Anatomie et morphologie des plantes
Prunus
Tree architecture
Cultivar
phytomers
Bourgeon
preformation
Ecology
U10 - Informatique
mathématiques et statistiques
Forestry Sciences
buds
hidden semi-Markov model
Horticulture
Epicormic shoot
Shoot
Preformation
tree architecture
Buds
Plant Shoots
Plant Biology & Botany
Flowers
Biology
Formation des bourgeons
010603 evolutionary biology
Species Specificity
neoformation
[SDV.BV]Life Sciences [q-bio]/Vegetal Biology
Hidden semi-Markov model
Prunus persica
Modèle de simulation
Original Articles
shoot growth
Growth cessation
Phytomers
Ramification
Shoot growth
Pousse
Branching pattern
010606 plant biology & botany
Zdroj: Annals of botany, vol 123, iss 6
IRTA Pubpro. Open Digital Archive
Institut de Recerca i Tecnologia Agroalimentàries (IRTA)
Ann Bot
Annals of Botany
Annals of Botany, Oxford University Press (OUP), 2019, 123 (6), pp.993-1004. ⟨10.1093/aob/mcy232⟩
ISSN: 0305-7364
1095-8290
DOI: 10.1093/aob/mcy232⟩
Popis: Background and Aims In peach (Prunus persica) trees, three types of shoots can be distinguished depending on the time of their appearance: sylleptic, proleptic and epicormic. On proleptic shoots, an average of ten phytomers are preformed in dormant buds prior to shoot growth after bud-break, whereas all phytomers are considered neoformed in sylleptic and epicormic shoots. However, casual observations indicated that proleptic and sylleptic shoots appear quite similar in number of phytomers and structure in spite of their different origins. The goal of this research was to test the hypothesis that both proleptic and sylleptic shoots exhibit similar growth characteristics by analysing their node numbers and bud fate patterns. If their growth characteristics are similar, it would indicate that the structure of both types of shoots is primarily under genetic rather than environmental control. Methods The number of phytomers and bud fate patterns of proleptic and sylleptic shoots of four peach cultivars grown in the same location (Winters, California) were analysed and characterized using hidden semi-Markov models. Field data were collected during winter 2016, just prior to floral bud-break. Key Results Sylleptic shoots tended to have slightly fewer phytomers than proleptic shoots of the same cultivars. The bud fate patterns along proleptic and sylleptic shoots were remarkably similar for all the cultivars, although proleptic shoots started growing earlier (at least 1 month) in the spring than sylleptic shoots. Conclusions This study provides strong evidence for the semi-deterministic nature of both proleptic and sylleptic shoots across four peach cultivars in terms of number of phytomers and bud fate patterns along shoots. It is apparent that the overall structure of shoots with similar numbers of phytomers was under similar genetic control for the two shoot types. Understanding shoot structural characteristics can aid in phenotypic characterization of vegetative growth of trees and in providing a foundation for vegetative management of fruit trees in horticultural settings. info:eu-repo/semantics/acceptedVersion
Databáze: OpenAIRE
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