MARC details
| 000 -LEADER |
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| fixed length control field |
02594nam a2200289Ia 4500 |
| 003 - CONTROL NUMBER IDENTIFIER |
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| control field |
MX-MdCICY |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
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| control field |
20250625124703.0 |
| 040 ## - CATALOGING SOURCE |
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| Transcribing agency |
CICY |
| 090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN) |
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| Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) |
B-7531 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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| fixed length control field |
250602s9999 xx |||||s2 |||| ||und|d |
| 245 10 - TITLE STATEMENT |
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| Title |
Genetic variation and evolution of Polaskia chichipe (Cactaceae)under domestication in the Tehuacán Valley, central Mexico |
| 490 0# - SERIES STATEMENT |
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| Volume/sequential designation |
Molecular Ecology, 14(6), p.1603-1611, 2005 |
| 520 3# - SUMMARY, ETC. |
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| Summary, etc. |
Polaskia chichipe is a columnar cactus under artificial selection in central Mexico because of its edible fruits. Our study explored the effect of human manipulation on levels and distribution of genetic variation in wild, silviculturally managed and cultivated sympatric populations. Total genetic variation, estimated in nine populations with five microsatellite loci, was H T = 0.658 ± 0.026 SE, which was mainly distributed within populations ( H S = 0.646)with low differentiation among them ( F ST = 0.015). Fixation index ( F IS ) in all populations was positive, indicating a deficit of heterozygous individuals with respect to Hardy-Weinberg expectations. When populations were pooled by management type, the highest expected heterozygosity ( H E = 0.631 ± 0.031 SE)and the lowest fixation index ( F IS = 0.07)were observed in wild populations, followed by cultivated populations ( H E = 0.56 ± 0.03 SE, F IS = 0.14), whereas the lowest variation was found in silviculturally managed populations ( H E = 0.51 ± 0.05 SE, F IS = 0.17). Low differentiation among populations under different management types ( F ST 0.005, P < 0.04)was bserved. A pattern of migration among neighbouring populations, suggested from isolation by distance ( r 2 = 0.314, P < 0.01), may have contributed to omogenizing populations and counteracting the effects of artificial selection. P. chichipe, used and managed for at least 700 generations, shows morphological differentiation, changes in breeding system and seed germination patterns associated with human management, with only slight genetic differences detected by neutral markers. |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
COLUMNAR CACTI |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
CROP EVOLUTION |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
DINUCLEOTIDE REPEATS |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
DOMESTICATION |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
GENETIC RESOURCES |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
GENETIC STRUCTURE |
| 650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name entry element |
MICROSATELLITES |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Otero-Arnaiz, A. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Casas, A. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Hamrick, J.L. |
| 700 12 - ADDED ENTRY--PERSONAL NAME |
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| Personal name |
Cruse-Sanders, J. |
| 856 40 - ELECTRONIC LOCATION AND ACCESS |
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| Uniform Resource Identifier |
<a href="https://drive.google.com/file/d/1Do6kFXEB9z-JR9GHOjwdoAC6s2Lg96kn/view?usp=drivesdk">https://drive.google.com/file/d/1Do6kFXEB9z-JR9GHOjwdoAC6s2Lg96kn/view?usp=drivesdk</a> |
| Public note |
Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
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| Source of classification or shelving scheme |
Clasificación local |
| Koha item type |
Documentos solicitados |
