Hostname: page-component-cd9895bd7-q99xh Total loading time: 0 Render date: 2024-12-17T21:09:32.007Z Has data issue: false hasContentIssue false

Identification of morphometric traits for screening of tejocote (Crateagus spp.) germplasm for better yield potential

Published online by Cambridge University Press:  23 January 2009

Carlos A. Núñez-Colín
Affiliation:
Campo Exp. Baijo, Inst. Nac. Investig. For., Agric. Pecu., km 6.5, Carret. Celaya-San Miguel de Allende, Celaya, Guanajuato, 38110 Mexico
Jaime Sahagún-Castellanos
Affiliation:
Inst. Hortic., Dep. Fitotec., Univ. Autón. Chapingo, km. 38.5, Carret. México-Texcoco, Chapingo, 56230, State Mex., Mexico
Fernando González-Andrés
Affiliation:
Dep. Ing. Cienc. Agrar., EST Ing. Agrar., Univ. León, Ave. Portugal 41, León, 24071, Castilla y León, Spain
Alejandro F. Barrientos-Priego
Affiliation:
Inst. Hortic., Dep. Fitotec., Univ. Autón. Chapingo, km. 38.5, Carret. México-Texcoco, Chapingo, 56230, State Mex., Mexico
Sergio Segura
Affiliation:
Cent. Reg. Univ. Cent. Occidente, Univ. Autón. Chapingo, Ave. Perif. Indep. 1000, Morelia, 58170, Michoac., Mexico
Raúl Nieto-Ángel
Affiliation:
Inst. Hortic., Dep. Fitotec., Univ. Autón. Chapingo, km. 38.5, Carret. México-Texcoco, Chapingo, 56230, State Mex., Mexico
Get access

Abstract

Introduction. Tejocote (Crataegus spp.) is an edible fruit species that some Mesoamerican cultures have cultivated since pre-Hispanic times in Mexico; however, this fruit crop has not undergone formal breeding. It is unknown whether morphological markers associated with fruit size exist to be used for indirect selection; this could be important, because this species has a large cycle. Our research aimed at studying phenotypic correlations between leaf and stomata characters with fruit weight; such correlations might be used as morphological markers for selection of superior germplasm for fruit weight. Materials and methods. Pearson’s correlation coefficients of 36 leaf variables and three leaf stomata variables with fruit weight were calculated in 94 genotypes of four different species. Results. As expected, the correlations calculated for each species and for the species pool differed. However, the number of veins in leaves of reproductive shoots was positively correlated with fruit weight ( 0.05) in the two most important horticultural species. On the other hand, C. mexicana was the best option for selecting superior germplasm, and the most significant variables correlated with fruit weight in this species were leaf major axis length of large vegetative shoots, leaf elongation ratio and number of veins of reproductive shoot leaves. Discussion. These variables could be good selection indices or morphological markers that can be used for early screening of germplasm for yield potential.

Type
Research Article
Copyright
© CIRAD, EDP Sciences, 2009

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Eggleston, W.W., The Crataegi of Mexico and Central America, Bull. Torrey Bot. Club 36 (1909) 501514. CrossRef
Phipps, J.B., Monograph of Northern Mexican Crataegus (Rosaceae subfam. Maloideae), SIDA Bot. Misc. 15 (1997) 194.
Núñez-Colín, C.A., Pérez-Ortega, S.A., Segura, S., Nieto-Ángel, R., Barrientos-Priego, A.F., Variabilidad morfológica de tejocote (Crataegus spp.) en México, Proc. Interam. Soc. Trop. Hortic. 48 (2004) 144148.
Pérez-Ortega, S.A., Núñez-Colín, C.A., Segura, S., Nieto-Ángel, R., Barrientos-Priego, A.F., Los recursos genéticos de Crataegus (Rosaceae) en México: Variación eco-climática, Proc. Interam. Soc. Trop. Hortic. 48 (2004) 149151.
Talent, N., Dickinson, T.A., Polyploidy in Crataegus and Mespilus (Rosaceae, Maloideae): evolutionary inference from flow cytometry of nuclear DNA amounts, Can. J. Bot. 83 (2005) 12681304. CrossRef
Grant V., Especiación vegetal, Editor. Limusa, Mex. city, Mex., 1989.
Talent N., Dickinson T.A., Apomixis and hybridization in Rosaceae subtribe Pyrineae Dumort.: a new tool promises new insights, In: Hörandl E., Grossniklaus U., Van Dijk P.J., Sharbel T. (Eds.), Apomixis: evolution, mechanisms and perspectives, Int. Assoc. Plant Taxon. and Koeltz Sci. Books, Vienna, Austria, 2007, pp. 301–316.
Muniyamma, M., Phipps, J.B., Cytological proof of apomixis in Crataegus (Rosaceae), Am. J. Bot. 66 (2) (1979) 149155. CrossRef
Talent, N., Dickinson, T.A., Endosperm formation in aposporous Crataegus (Rosaceae, Spiraeoideae, tribe Pyreae): parallels to Ranunculaceae and Poaceae, New Phytol. 173 (2007) 231249. CrossRef
Phipps J.B., O’Kennon R.J., Lance R.W., Hawthorns and medlars, Timber Press, Portland, USA, 2003.
El-Gazaar, A., The taxonomic significance of leaf morphology in Crataegus (Rosaceae), Bot. Jahrb. Syst. 101 (1980) 457469.
Way R.D., Sanford J.C., Lakso A.N., Fructificación y productividad, in: Moore J.N., Janick J. (Eds.), Métodos genotécnicos en frutales, AGT Ed., Mexico city, Mexico, 1988, pp. 477–495.
Wilcox D., Dove B., McDavid D., Greer D., Image tool Version 3, Users guide, Univ. Tex. Health Sci. Cent., San Antonio, USA, 1995.
Anon., SAS/STAT software: changes and enhancements through release 8, SAS Inst., Cary, USA, 1999.
Núñez-Colín, C.A., Nieto-Ángel, R., Barrientos-Priego, A.F., Índices de selección para aumentar tamaño de fruto en tejocote (Crataegus spp.), Proc. Interam. Soc. Trop. Hortic. 49 (2005) 146148.
Dickinson, T.A., Phipps, J.B., Studies in Crataegus (Rosaceae, Maloideae). IX. Short shoot leaf heteroblasty in Crataegus crus-galli sensu lato, Can. J. Bot. 62 (1984) 17751780. CrossRef
Zagaja S.W., Exploración de recursos genéticos, in: Moore J.N., Janick J. (Eds.), Métodos genotécnicos en frutales, AGT Ed., Mex. city, Mex., 1988, pp. 3–12.
Phipps J.B., Problems of hybridity in the cladistics of Crataegus (Rosaceae), in: Grant W.F. (Ed.), Plant Biosystematics, Acad. Press Can., Tor., Can., 1984, pp. 417–438.
Büttner R., Rosaceae, in: P. Hanelt and Inst. Plant Genet. Crop Plant Res. (Eds.), Mansfeld’s Encycl. Agric. Hortic. Crops: except ornam., Springer, Berlin-Heidelberg-New York, 2001, pp. 417–532.