Genetic diversity assessment in vegetative and reproductive characters of Hoya mindorensis Schlechter

Issue Date

12-2012

Abstract

Hoyas are increasingly gaining popularity as ornamental crops worldwide however many were just recently cultivated from its natural habitat. The knowledge on the identification of the different Hoya species is still fragmentary. There are variations among Hoya mindorensis collection, an endemic species of the Philippines, at the Institute of Plant Breeding (IPB), Crop Science Cluster, UPLB . Sixteen accessions of H. mindorensis were characterized, but only 11 were morphologically characterized based on vegetative and reproductive characters due to non-flowering of five accessions. Members of the same clusters in H. mindorensis accessions have morphological similarities in leaf texture, top corona margin and upper corona lobe apex color. These characters can be used as morphological markers. Accessions 5, 12 and 13 were closely related and can be categorized into a different subgroup based on the vegetative and morphological dendrogram. This pioneering work will provide new knowledge and better understanding on this species which will be very useful in selecting potential parent materials for future crop improvement in H. mindorensis and other Hoya species and in identifying accessions which can be directly utilized as commercial varieties.

Source or Periodical Title

Philippine Journal of Crop Science

ISSN

0115-463x

Volume

37

Issue

3

Page

23-29

Document Type

Article

Frequency

tri-quarterly

Physical Description

tables, pictures, dendrogram

Language

English

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