Cytotaxonomic characterization of cultivars and accessions of Lens culinaris Medik. (Fabaceae) from Chile and Canada

ABSTRACT The lentil (Lens culinaris Medik.) belongs to the legume family (Fabaceae), and it possesses benefits at nutritional, sustainable, and crop rotation system levels. Its occurrence and consumption in Chile originated from imports from Canada, but molecular tools now group Canadian lentils apa...

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Autores principales:	Pino Palma,Ricardo, Baeza,Carlos M., Stuessy,Tod
Lenguaje:	English
Publicado:	Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción 2021
Materias:	cytotaxonomy karyotypic asymmetry lentils secondary constrictions
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-66432021000100086
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spelling	oai:scielo:S0717-664320210001000862021-10-14Cytotaxonomic characterization of cultivars and accessions of Lens culinaris Medik. (Fabaceae) from Chile and CanadaPino Palma,RicardoBaeza,Carlos M.Stuessy,Tod cytotaxonomy karyotypic asymmetry lentils secondary constrictions ABSTRACT The lentil (Lens culinaris Medik.) belongs to the legume family (Fabaceae), and it possesses benefits at nutritional, sustainable, and crop rotation system levels. Its occurrence and consumption in Chile originated from imports from Canada, but molecular tools now group Canadian lentils apart from those of the Mediterranean agro-ecological zones in Chile. Isoenzyme studies have shown a narrow genetic distance between different strains of Chilean germplasm. This present work characterizes Chilean cultivars and regional accessions and compares them with those in Canada using the cytotaxonomic tools of chromosome formula, chromosomal asymmetry index, total chromosome length (TLC), and a detailed architectural examination of each chromosome. We found chromosome stability among all lentils as 4m+3sm. Results showed a low TLC but higher inter-chromosomal asymmetry in the accessions from Hualqui (Biobío Region) (CVCL= 31.25), a unique secondary constriction from Yumbel (Ñuble Region), and a higher TLC in Collanco (Biobío Region). Even though there was no evident karyotypic separation between Chilean and Canadian lentils, there was greater heterogeneity in TLC among cultivars in Chile than among those from Canada. It is unknown what physiological differences these cytological variants might possess. Because L. culinaris in Chile is of agronomic importance, studies of conservation are recommended to safeguard cytotaxonomic races as a national genetic resource.info:eu-repo/semantics/openAccessFacultad de Ciencias Naturales y Oceanográficas, Universidad de ConcepciónGayana. Botánica v.78 n.1 20212021-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-66432021000100086en10.4067/S0717-66432021000100086
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	cytotaxonomy karyotypic asymmetry lentils secondary constrictions
spellingShingle	cytotaxonomy karyotypic asymmetry lentils secondary constrictions Pino Palma,Ricardo Baeza,Carlos M. Stuessy,Tod Cytotaxonomic characterization of cultivars and accessions of Lens culinaris Medik. (Fabaceae) from Chile and Canada
description	ABSTRACT The lentil (Lens culinaris Medik.) belongs to the legume family (Fabaceae), and it possesses benefits at nutritional, sustainable, and crop rotation system levels. Its occurrence and consumption in Chile originated from imports from Canada, but molecular tools now group Canadian lentils apart from those of the Mediterranean agro-ecological zones in Chile. Isoenzyme studies have shown a narrow genetic distance between different strains of Chilean germplasm. This present work characterizes Chilean cultivars and regional accessions and compares them with those in Canada using the cytotaxonomic tools of chromosome formula, chromosomal asymmetry index, total chromosome length (TLC), and a detailed architectural examination of each chromosome. We found chromosome stability among all lentils as 4m+3sm. Results showed a low TLC but higher inter-chromosomal asymmetry in the accessions from Hualqui (Biobío Region) (CVCL= 31.25), a unique secondary constriction from Yumbel (Ñuble Region), and a higher TLC in Collanco (Biobío Region). Even though there was no evident karyotypic separation between Chilean and Canadian lentils, there was greater heterogeneity in TLC among cultivars in Chile than among those from Canada. It is unknown what physiological differences these cytological variants might possess. Because L. culinaris in Chile is of agronomic importance, studies of conservation are recommended to safeguard cytotaxonomic races as a national genetic resource.
author	Pino Palma,Ricardo Baeza,Carlos M. Stuessy,Tod
author_facet	Pino Palma,Ricardo Baeza,Carlos M. Stuessy,Tod
author_sort	Pino Palma,Ricardo
title	Cytotaxonomic characterization of cultivars and accessions of Lens culinaris Medik. (Fabaceae) from Chile and Canada
title_short	Cytotaxonomic characterization of cultivars and accessions of Lens culinaris Medik. (Fabaceae) from Chile and Canada
title_full	Cytotaxonomic characterization of cultivars and accessions of Lens culinaris Medik. (Fabaceae) from Chile and Canada
title_fullStr	Cytotaxonomic characterization of cultivars and accessions of Lens culinaris Medik. (Fabaceae) from Chile and Canada
title_full_unstemmed	Cytotaxonomic characterization of cultivars and accessions of Lens culinaris Medik. (Fabaceae) from Chile and Canada
title_sort	cytotaxonomic characterization of cultivars and accessions of lens culinaris medik. (fabaceae) from chile and canada
publisher	Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción
publishDate	2021
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-66432021000100086
work_keys_str_mv	AT pinopalmaricardo cytotaxonomiccharacterizationofcultivarsandaccessionsoflensculinarismedikfabaceaefromchileandcanada AT baezacarlosm cytotaxonomiccharacterizationofcultivarsandaccessionsoflensculinarismedikfabaceaefromchileandcanada AT stuessytod cytotaxonomiccharacterizationofcultivarsandaccessionsoflensculinarismedikfabaceaefromchileandcanada
_version_	1718442361313296384

Cytotaxonomic characterization of cultivars and accessions of Lens culinaris Medik. (Fabaceae) from Chile and Canada

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