Genetic relationships among regenerated tall coconut (Cocos nucifera L.) accessions from multivariate analyses using reliable short list of morphological descriptors in Cte dIvoire.

Abstract

Genetic relationships among 18 regenerated tall coconut accessions from International Coconut Genebank for Africa and Indian Ocean (ICG-AIO) located at Côte d'Ivoire were studied. Analyses were achieved from 17 quantitative characters of the reliable minimal list of agro-morphological descriptors for coconut proposed by Coconut Genetic Resources Network (COGENT) in 2007. From achieved Multivariate Analyses (MVA) two geographical clusters including Afro-Indian and Far East were observed in the first generation of regenerated tall coconut accessions. In addition regenerated tall coconut accessions whose parents come from South Pacific geographical area were the more varied. This typology is similar to the one of the initial introductions previously established. Thus, creation of improved hybrids from heterosis effect searching a long time exploited in tall coconut accessions can always be pursued with regenerated accessions in Côte d'Ivoire coconut program.

Typology in the fertility of seven Tall coconut (Cocos nucifera L.) populations using artificial pollination traits in field genebank

“…They consist in the group of Afro-Indian populations (WAT, WAT6 and LCT) and the group of Latin America and South Pacific populations (PNT01, PNT02, SIT and GPT). The classification corroborates morphological clustering of Tall coconut accessions From International Coconut Genebank for Africa and Indian Ocean (ICG-AIO) as reported by Konan (2008) and Yao et al (2019). Thus, the present study revealed that from two genetic pools into ICG-AO they are the coconut accessions accounting the best male parental individuals and the ones with good seed production abilities under artificial regeneration.…”

Biometric Analysis on Genetic Divergence between Parental and Regenerated Accessions in Tall Coconut Palms (<i>Cocos nucifera</i> L.) from International Genebank for Africa and the Indian Ocean

“…Indeed, WAT is considered as control in all experimental plots of Tall coconut palms at the Marc Delorme station. For each character, weighted means were done following relation [18]:…”

Validated SNAP markers based on the CYP P450 87 A3 gene in coconut (Cocos nucifera) are associated with yearly stem height increase

“…The YSI character is estimated by measuring the height of 11 leaf scars, and it is used to predict the increase in yearly stem height of the coconut palms over specific years (Martial et al 2019). The productive period of the coconut palms is associated with the YSI character since the higher the coconut stem height, the more challenging to harvest the nuts.…”