Linkage mapping and QTL analysis in coconut (Cocos nucifera L.)

2000 ◽  
Vol 101 (1-2) ◽  
pp. 292-300 ◽  
Author(s):  
A. Herrán ◽  
L. Estioko ◽  
D. Becker ◽  
M. J. B. Rodriguez ◽  
W. Rohde ◽  
...  
Keyword(s):  
Qtl Analysis ◽  
Linkage Mapping ◽  
Cocos Nucifera ◽  
Cocos Nucifera L

Construction of a linkage map of the Rennell Island Tall coconut type (Cocos nucifera L.) and QTL analysis for yield characters

Genome ◽  
2001 ◽  
Vol 44 (6) ◽  
pp. 962-970 ◽  
Author(s):  
P Lebrun ◽  
L Baudouin ◽  
R Bourdeix ◽  
J Louis Konan ◽  
J HA Barker ◽  
...  
Keyword(s):  
Linkage Map ◽  
Qtl Analysis ◽  
Dna Markers ◽  
Marker Assisted Selection ◽  
Ssr Marker ◽  
Cocos Nucifera ◽  
Genome Length ◽  
Linkage Groups ◽  
Consecutive Sampling ◽  
Cocos Nucifera L

AFLP and SSR DNA markers were used to construct a linkage map in the coconut (Cocos nucifera L.; 2n = 32) type Rennell Island Tall (RIT). A total of 227 markers were arranged into 16 linkage groups. The total genome length corresponded to 1971 cM for the RIT map, with 5–23 markers per linkage group. QTL analysis for yield characters in two consecutive sampling periods identified nine loci. Three and two QTLs were detected for number of bunches and one and three QTLs for number of nuts. The correlation of trait values between characters and evaluation periods is partially reflected in identical QTLs. The QTLs represent characters that are important in coconut breeding. The cosegregation of markers with these QTLs provides an opportunity for marker-assisted selection in coconut breeding programmes.Key words: coconut, QTL, AFLP, SSR, marker-assisted selection (MAS).

QTL analysis of fruit components in the progeny of a Rennell Island Tall coconut (Cocos nucifera L.) individual

2005 ◽  
Vol 112 (2) ◽  
pp. 258-268 ◽  
Author(s):  
L. Baudouin ◽  
P. Lebrun ◽  
J. L. Konan ◽  
E. Ritter ◽  
A. Berger ◽  
...  
Keyword(s):  
Qtl Analysis ◽  
Cocos Nucifera ◽  
Cocos Nucifera L

Growth of Dracaena marginata and Spathiphyllum ‘Petite’ in Sphagnum Peat- and Coconut Coir Dust-based Growing Media

1999 ◽  
Vol 17 (1) ◽  
pp. 49-52 ◽  
Author(s):  
Robert H. Stamps ◽  
Michael R. Evans
Keyword(s):  
Growth Parameters ◽  
Cocos Nucifera ◽  
Greenhouse Production ◽  
Growing Media ◽  
Sphagnum Peat ◽  
Affected Plant ◽  
Coir Dust ◽  
Media Component ◽  
The Media ◽  
Cocos Nucifera L

Abstract A comparison was made of Canadian sphagnum peat (SP) and Philippine coconut (Cocos nucifera L.) coir dust (CD) as growing media components for greenhouse production of Dracaena marginata Bak. and Spathiphyllum Schott ‘Petite’. Three soilless foliage plant growing mixes (Cornell, Hybrid, University of Florida #2 [UF-2]) were prepared using either SP or CD and pine bark (PB), vermiculite (V), and/or perlite (P) in the following ratios (% by vol): Cornell = 50 CD or SP:25 V:25 P, Hybrid = 40 CD or SP:30 V:30 PB, UF-2 = 50 CD or SP: 50 PB. Dracaena root growth was not affected by treatments but there were significant mix × media component interactions that affected plant top growth parameters. In general, the growth and quality of D. marginata were reduced by using CD in Cornell, had no effect in Hybrid, and increased in UF-2. S. ‘Petite’ grew equally well in all growing mixes regardless of whether CD or SP was used; however, plants grew more in Cornell and Hybrid than in UF-2. S. ‘Petite’ roots, which were infested with Cylindrocladium spathiphylli, had higher grades when grown in CD than when the media contained SP.

Diversity in Mohachao Narel, a Sweet Endosperm Coconut (Cocos nucifera L.) Population from Maharashtra, India

2013 ◽  
Vol 36 (3) ◽  
pp. 319-330 ◽  
Author(s):  
K. Samsudeen ◽  
M. K. Rajesh ◽  
D. D. Nagwaker ◽  
Raghavan Reshmi ◽  
P. Ajith Kumar ◽  
...  
Keyword(s):  
Cocos Nucifera ◽  
Cocos Nucifera L

Cocos nucifera L. oil alleviates lead acetate-induced reproductive toxicity in sexually-matured male Wistar rats

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Olugbemi T. Olaniyan ◽  
Olakunle A. Ojewale ◽  
Ayobami Dare ◽  
Olufemi Adebayo ◽  
Joseph E. Enyojo ◽  
...  
Keyword(s):  
Luteinizing Hormone ◽  
Lead Acetate ◽  
Wistar Rats ◽  
Histological Analysis ◽  
Cocos Nucifera ◽  
Reproductive Toxicity ◽  
Positive Control ◽  
Negative Control ◽  
Male Wistar Rats ◽  
Cocos Nucifera L

Abstract Objectives Lead primarily affects male reproductive functions via hormonal imbalance and morphological damage to the testicular tissue with significant alteration in sperm profile and oxidative markers. Though, different studies have reported that Cocos nucifera L. oil has a wide range of biological effects, this study aimed at investigating the effect of Cocos nucifera L. oil on lead acetate-induced reproductive toxicity in male Wistar rats. Methods Twenty (20) sexually matured male Wistar rats (55–65 days) were randomly distributed into four groups (n=5). Group I (negative control)—distilled water orally for 56 days, Group II (positive control)—5 mg/kg bwt lead acetate intraperitoneally (i.p.) for 14 days, Group III—6.7 mL/kg bwt Cocos nucifera L. oil orally for 56 days and Group IV—lead acetate intraperitoneally (i.p.) for 14 days and Cocos nucifera L. oil for orally for 56 days. Rats were sacrificed by diethyl ether, after which the serum, testis and epididymis were collected and used for semen analysis, biochemical and histological analysis. Results The lead acetate significantly increases (p<0.05) testicular and epididymal malondialdehyde (MDA) levels, while a significant reduction (p<0.05) in sperm parameters, organ weight, testosterone and luteinizing hormone was observed when compared with the negative control. The coadministration of Cocos nucifera oil with lead acetate significantly increases (p<0.05) testosterone, luteinizing hormone, sperm parameters and organ weight, with a significant decrease (p<0.05) in MDA levels compared with positive control. Histological analysis showed that lead acetate distorts testicular cytoarchitecture and germ cell integrity while this was normalized in the cotreated group. Conclusions Cocos nucifera oil attenuates the deleterious effects of lead acetate in male Wistar rats, which could be attributed to its polyphenol content and antioxidant properties.

Involvement of monoaminergic systems in anxiolytic and antidepressive activities of the standardized extract of Cocos nucifera L.

2016 ◽  
Vol 71 (1) ◽  
pp. 227-237 ◽  
Author(s):  
Eliane Brito Cortez Lima ◽  
Caren Nádia Soares de Sousa ◽  
Lucas Nascimento Meneses ◽  
Yuri Freitas e Silva Pereira ◽  
Natália Castelo Branco Matos ◽  
...  
Keyword(s):  
Cocos Nucifera ◽  
Cocos Nucifera L

Measurement of young coconut (Cocos nucifera, L.) maturity by sound waves

1994 ◽  
Vol 23 (3) ◽  
pp. 253-276 ◽  
Author(s):  
Miflora M. Gatchalian ◽  
Sonia Y. De Leon ◽  
Toshimasa Yano
Keyword(s):  
Cocos Nucifera ◽  
Sound Waves ◽  
Cocos Nucifera L
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